US20100192955A1 - Patient interface structure and method/tool for manufacturing same - Google Patents
Patient interface structure and method/tool for manufacturing same Download PDFInfo
- Publication number
- US20100192955A1 US20100192955A1 US12/656,466 US65646610A US2010192955A1 US 20100192955 A1 US20100192955 A1 US 20100192955A1 US 65646610 A US65646610 A US 65646610A US 2010192955 A1 US2010192955 A1 US 2010192955A1
- Authority
- US
- United States
- Prior art keywords
- mold
- cavity
- component
- patient interface
- mold part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0616—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
- A61M16/0622—Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure having an underlying cushion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0633—Means for improving the adaptation of the mask to the patient with forehead support
Definitions
- the invention relates to patient interfaces such as breathing masks covering nose and/or mouth of a patient and components or structures thereof as well as to methods for manufacturing such patient interfaces or components thereof and further relates to tools for manufacturing the same. Furthermore, the present invention relates to cushions, pads, supporting structures and/or sealing structures, such as mask cushions or forehead pads etc. for a patient interface such as a breathing mask. Moreover, the present invention relates to a patient interface or component of a patient interface obtainable by a method according to the present invention as well as to a tool for producing such interface or component and/or for performing a respective method.
- the invention concerns, in particular, a pad or cushion and a patient interface such as a breathing mask which is equipped with such pad or cushion.
- An internal space of a breathing mask is established by the patient interface in conjunction with sealing contact of the pad or cushion with the surface of the face of a user.
- This internal space is sealed in relation to the ambient atmosphere in such a way that a pressure which is preferably increased in relation to the ambient pressure can be obtained, e.g. in phase-wise fashion, in the internal space of the patient interface or breathing mask.
- Breathing masks of that kind are used in particular in connection with the medical or therapeutic administration of breathable gases and also in the technical sector, for example in the sector of breathing apparatus technology, and particularly for CPAP and BiPAP therapy.
- the invention further concerns a sealing, contact and/or support structure and a process and tool for the production thereof in general.
- sealing lip structure e.g., extends in inwardly directed relationship around an opening of the mask, and is made from an elastically deformable material.
- sealing action achieved with sealing lips of that kind generally increases with the pressure with which the sealing lip is pressed against the surface of the face.
- comparatively high contact pressures in particular long-term use of breathing masks of that kind can give rise to troubles.
- Patient interfaces and patient interface structures or components are known in the prior art, for example, in the field of face masks for delivering breathable air to a patient.
- face masks often hollow cushions or bent, resilient lip-structures are used for providing contact zones for contacting the face of the user in order to avoid dents and to improve wearing comfort of the user.
- structures are used as a sealing structure for sealing the mask interior from the exterior in the contact region where the mask rests on a user's face.
- a disadvantage of structures known in the art is that they are complicated to manufacture and a number of manual manufacturing steps is often necessary. Often a number of different parts is manufactured wherein the parts are provided with connection structures and have to be assembled to form the final product.
- breathing masks which comprise an individually molded part made of polyurethane foam which is loosely fitted into the mask frame for constituting part of a face mask cushion.
- this kind of assembly requires providing structures in the mask seal, the mask body or both that allow for a mechanical linkage between these at least two components.
- This typically requires the use of additional materials to form different parts of a mask structure increases the complexity of the design as well as the manufacture of the mask. This leads to limitations in design due to the requirements of providing connection structures, and requires a complex hand assembly or hand manipulation for assembling the mask etc.
- the solutions known in the prior art are in particular, not easy to handle, not durable, complicated and expensive to manufacture, not suitable for automating, not bio-compatible as well as optically and hygienically objectionable.
- the known solutions are further disadvantageous in that they do not or insufficiently allow individualization and are less comfortable for a wearer, particularly with regard to material properties such as weight and hardness.
- WO 2007/009182A1 refers to a respiratory mask and a method for manufacturing a respiratory mask comprising a first component formed from a material that is more rigid than the flexible material, wherein the first component is formed onto the second component by an over molding process.
- WO 03/105921A2 relates to a mask cushioning and forehead pad for a respiratory mask, and a method for its production comprising a mask cushioning having zones with an increased cross section that are configured in the mask cushioning, wherein the mask cushioning material in said zones has different material properties in such a way that the Shore hardness of the mask cushioning in the boarder region is higher than in the core region.
- this disclosure is advantageous in that it provides a one piece hygienic component, it still suffers from the above disadvantageous, particularly from limitations in the design of the sealing structures and from complex manufacturing methods.
- the present invention relates to a patient interface structure or component, e.g., a breathing mask and components thereof.
- a patient interface structure or component e.g., a breathing mask and components thereof.
- Such components are, e.g., a pad or a cushion for supporting and/or sealingly supporting a breathing mask or patient interface on a user's skin.
- the present invention relates to a method and tool for manufacturing a patient interface or patient interface component, particularly those according to the present invention.
- the first and second parts are preferably parallelly and/or subsequently co-molded.
- the first and second part have a different hardness wherein the first part is molded in a first step and wherein the second part is subsequently molded-on or foamed-on the first part.
- the first part is made of a hard material, particularly with regard to the second material
- the second material is made of a soft material, particularly with regard to the first material.
- the first material is harder than the second material.
- foaming-on of the second part to the first part and the co-molding of the first part and the second part results in the first and second part being formed integrally with one another.
- the method and tool according to present invention particularly allow to mold a foamed part on or onto another part in an easy, reliable, efficient and effective manner.
- the present invention does not require that a component of a first part and a foamed second part are formed by ‘surrounding’ the first part by a foamed material wherein the first part constitutes a core.
- a foamed material wherein the first part constitutes a core.
- the present invention relates to a component of a patient interface, such as a breathing mask, and in particular to a patient interface cushion comprising a support structure, such as a frame-component and a cushion or undercushion for supporting the interface on a patient's face.
- a patient interface cushion comprising a support structure, such as a frame-component and a cushion or undercushion for supporting the interface on a patient's face.
- the component further comprises a membrane, particularly for sealing the cushion against a users face.
- the first part and the second part integrally merge at a merging or contact surface constituting the contact area between said two parts.
- Said merging surface preferably is a substantially plane surface and/or a surface having a substantially plane cross-section.
- the merging or contact surface comprises at least two distinct surface portions.
- the merging or contact surface comprises a first surface portion and the second surface portion wherein the first surface portion and the second surface portion are inclined towards one another.
- the merging or contact surface has a plane, an elbow-shaped, u-shaped, recessed, cup-like, and/or hook-shaped profile at least at a part of its cross-section.
- the merging or contact surface does not have undercuts.
- the first portion and second portion solely merge via such merging surface and/or are not connected by means of structural or mechanical fastening means.
- the contact surface of the first material comprises bores and/or cavities which are at least partly filled by the second material when foaming the second material on the first material.
- the component of a patient interface is a breathing mask cushion for sealingly supporting a breathing mask on a wearer's face, a forehead pad for supporting a breathing mask on a wearer's face, part of a headband for securing a device such as a breathing mask to a wearer's head or other parts or components for contacting a wearer's body.
- such interface comprises a thin membrane for sealingly contacting a user's skin and an undercushion being thicker than the the membrane and being arranged—when viewed from the patient—under or behind said membrane.
- the second part according to the present invention constitutes such undercushion wherein the first part is adapted to support the second portion and to connect it to a patient interface frame.
- the first part also comprises the membrane being integrally formed therewith or being, preferably releasably, attached thereto.
- the membrane forms an outer portion of the patient interface (cushion) for, preferably sealingly, contacting a wearer's skin wherein the second part or undercushion is shielded vis-à-vis the wearer's skin by the membrane and is attached, preferably releasably, to the patient interface by means of the first part.
- the second part preferably does not directly contact the wearer's skin.
- a patient interface component here e.g. a mask cushion
- a membrane or sealing lip portion and a cushion or undercushion comprising a connection portion for connecting it to a mask frame.
- the membrane or sealing lip portion is preferably an independent, non-integral part which is individually connected to the mask frame.
- the membrane or sealing lip portion is co-molded and integrally formed with support portions of the patient interface, such as, e.g., the mask frame and/or the first part according to the preset invention.
- the mask cushion or undercushion comprises a cushion portion and a connection portion.
- the connection portion corresponds to the first part as referred to herein wherein the cushion portion corresponds to the second part as referred to herein.
- the second part is made of a foam or a foamed material.
- the second part is co-molded to or foamed-on the first part along the contact area or merging surface.
- the component according to the invention preferably forms an undercushion of a breathing mask cushion which is shielded or covered vis-à-vis a wearer by a membrane or sealing lip portion which at least partially extends along and over undercushion portion, respectively, when assembled to a mask frame.
- the second part is located in the mask interior oriented or facing towards the outside environment of the mask or towards a wearer, respectively whereas the first part of the mask cushion is located in the mask interior oriented or facing towards the inside of the mask or or away from a wearer, respectively.
- the first part is not or does not comprise a foam or foamed material wherein the second part is made of or comprises a foamed material.
- the first part has a first material characteristic and the second part has a second material characteristic different from the first material characteristic.
- said characteristic is hardness.
- the (first) hardness of the first part is higher than the (second) hardness of the second part.
- the first part comprises a polymer, e.g., a polysiloxane; silicone; liquid silicone rubber, and/or thermoplastic elastomer.
- the second part comprises foamed materials, e.g., foamed silicone and/or foamed polyurethane.
- the second part is made of a material having visco-elastic properties.
- the breathing mask cushion and patient interface respectively, preferably comprises a longitudinal axis extending generally perpendicular to a contact plane in which the cushion or interface substantially contacts a wearer.
- the contact region comprises one or more, at least two and preferably three distinct portions.
- the contact region is directed towards one side of the first/second part only.
- the second part does not surround or include the first part or portions thereof.
- the contact region, the first part and/or the second part are generally ring shaped.
- the ring can be closed or can be open, i.e. a ring-segment.
- the method and tool according to the present invention particularly allow to foam the second part on the first part from one side only and onto substantially plane surfaces, generally to any surface of the first part.
- the present invention relates to a method for producing a component of a patient interface or a patient interface, respectively.
- the method according to the present invention relates to the production of a patient interface or component of a patient interface, such as a breathing mask cushion, as discussed and disclosed in the present application.
- a preferred method according to the present invention comprises the steps of providing a molding tool having a first mold part and a second mold part which are adapted to define a first mold cavity therebetween for molding a first part of said patient interface or patient interface component.
- a first material having first material characteristics, such as a first hardness is injected into the first molding tool and into the first cavity defined thereby in order to provide the first part of the component.
- the first mold cavity is opened and the first part is removed.
- the molded first part is ejected or removed from the first mold part and is provided into a second cavity formed between at least a third and a fourth mold part.
- the third and fourth mold parts are designed and arranged so that the second mold cavity is established, as discussed above.
- the second cavity is larger than the first molded part so that a cavity is formed between the third mold part, the fourth mold part, and/or the first molded part.
- a second material having a second material characteristic, such as a second hardness, is then fed into the second mold cavity in order to provide a second part integral with the first part.
- the second material is provided as a foam or foamed material. This includes that the second material is introduced or fed into the second cavity in a foamed state and/or that the second material is foamed inside the second cavity, e.g., by mans of a foaming agent.
- the second material is provided or fed into the second cavity at elevated pressure and/or resulting in an elevated pressure in the second cavity, e.g. by means of the foaming agent.
- the first material characteristic and the second material characteristic such as the first hardness and the second hardness, differ from one another wherein, preferably, the first hardness is larger than the second hardness.
- the mold parts are preferably arranged around a turntable. After the first part has been molded, preferably injection molded, the first molded part is removed from the first mold cavity and the first mold part is provided into the second mold cavity by turning of the turntable and by placing it in a defined position in relation to the third and fourth mold part so that it is positioned in the second cavity. Then, the second part is molded.
- the tool is opened and the patient interface component can be ejected or withdrawn from the tool.
- a tool for manufacturing a patient interface or a patient interface component as discussed in the present application and/or for performing a method as discussed in the present application is provided. Aspects of such tool have already been discussed in combination with the patient interface component or the method of the invention.
- Such tool preferably comprises a first mold part and a second mold part which are adapted to define a first mold cavity therebetween.
- a third mold part and a fourth mold part adapted to define a second mold cavity therebetween and/or between the first part of a patient interface component and the third and/or fourth mold part.
- the first and second mold part define walls of said first cavity whereas the third mold part, the fourth mold part and/or the first molded part define walls of said second cavity.
- the wall of said second cavity is preferably partly formed by or comprises the merging surface or contact region formed by the first molded part of the patient interface component.
- the third mold part, the fourth mold part and/or the first molded part preferably comprise at least one pressure-flange for sealing the second cavity and preferably the first part against the third mold part and/or the fourth mold part.
- the one or more pressure flange(s) is/are designed and arranged such that it/they define(s) the merging surface on the first part of the patient interface component.
- the second cavity for molding the second part of the patient interface component is sealed against the first molded part so that a contact or merging surface is defined forming part of the walls of the second cavity for molding the second part of the patient interface on the first part at the merging surface.
- At least one pressure flange is provided on the first nolded part this is preferably achieved by providing a negative form of the pressure flange by the first cavity, preferably in the first mold part and/or the second mold part such that the pressure flange is molded integrally with the first molded part.
- the pressure flange(s) allow forming of a second cavity by sealing the first molded part, and particularly the merging surface of the first molded part against the third and or fourth mold parts, respectively.
- the first and second mold part providing the first cavity constitute an injection molding mold wherein the third and fourth mold part providing the second cavity constitute a foaming mold.
- the pressure flange(s) is/are preferably constituted by the provision of a sealing ring, made of, e.g. silicone material.
- a sealing ring made of, e.g. silicone material.
- such sealing ring e.g. in the form of an O-ring or the like, is attached to the third and/or fourth mold part(s) by the provision of a fastening groove for attaching said ring type pressure flange to the third mold part and/or fourth mold part.
- This embodiment comprising one or more silicone sealing rings constituting one or more pressure flange(s) is particularly preferred for manufacturing a second molded part made of polyurethane foam.
- the present invention is of particular advantage in that it provides an improved patient interface and patient interface component such as a breathing mask cushion with enhanced characteristics.
- the patient interface and patient interface component according to the present invention allows improved comfort for a wearer and avoids reddening and pressure marks occurring on a wearer's face.
- the present invention allows the provision of special and interchangeable geometries and properties of a patient interface and a patient interface component for improved compliance with a user's physiognomy and anthropometry.
- the present invention particularly allows efficient and effective production of improved patient interfaces and/or components and an automated production.
- optically and hygienically as well as structurally improved patient interfaces and patient interface components can be provided.
- the present invention additionally or alternatively allows the provision of an improved usability of the molded product, particularly by allowing the provision of a supporting structure integrally combined with a softer, foamed part.
- a first and second molded part allows the provision of a soft and comfortable material for e.g. comfortably supporting a patient interface on a users skin and of a harder material for providing improved haptic and hygienic properties, for supporting the soft comfortable material, i.e., the second portion, and/or for allowing the provision of, e.g., additional fastening means for, e.g., securing, preferably releasably and interchangeably securing, a patient interface component to a patient interface frame.
- a patient interface according to the present invention preferably exhibits advanced comfort to a wearer due to its light weight and the second parts material properties, which are preferably visco-elastic.
- the method and tool according to the present invention particularly provide for an effective and efficient manufacturing of an improved patient interface or patient interface component having a improved characteristics.
- the hardness and geometry of the patient interface or patient interface component may be easily adjusted or individualized without the need of an exchange of expensive tool components. Rather, e.g., a first, second, third and/or fourth mold part may be easily replaced or exchanged in order to adjust the above-listed characteristics wherein the remaining mold part(s) can be maintained.
- the production of an improved patient interface or patient interface component with improved properties as regards comfort etc. is achieved in an easy and cheap manner in an automized process.
- the present invention allows an improved production of harmonized and exchangeable modules for patient interfaces wherein the interface measures are maintained while only features relevant for the individual improvement of the patient interface or patient interface component are adjusted.
- the present invention particularly and preferably has the advantageous effect that it allows the provision of an improved manufacturing process and that, e.g. during production gripping or handling sections are comolded integrally with the first and/or second molded part.
- These gripping or handling parts can preferably be used for demolding the patient interface component and/or for handling the patient interface component during subsequent manufacturing and/or assembly steps.
- the gripping or handling parts are preferably being provided on the harder, non-foamed first part.
- the gripping or handling parts are adapted to be easily removed when they are not needed any more.
- such gripping or handling parts comprise a predetermined breaking point zone. Additionally and/or alternatively, the gripping or handling parts are provided on the first molded part.
- these gripping or handling parts at least partly, constitute part of the contact surface.
- the second material is foamed on or over the gripping or handling parts provided on the first molded part.
- the structure of the component of the present invention and particularly of the contact region or merging surface allows an improved filling and/or venting of the foaming tool.
- the present invention preferably advantageously allows an easy and efficient production of the first part with high tolerances and low requirements or restrictions as regards the quality of the contact region or merging surface since this surface will be contacted and thus covered by the foamed second part.
- the preferred structure, e.g., a plane-, u-, cup- or elbow-shaped structure, of the merging surface of the first part allows to easily heal deficiencies in the optical appearance of the foamed second material.
- the preferred structures of the first part allow, e.g., to cover voids, vent structures and/or the like of the first part and/or foamed second part while at the same time allowing a secure and advanced integral connection between the first and second part.
- the present invention particularly allows to manufacture one part molded with different hardness zones and/or different functionalities for use as, e.g., forehead pads (e.g., higher hardness for the attachment mechanism to the mask and lower hardness towards the patient), support portions of a headband or string, or an enhanced cushion to be attached to standard or harmonized frame interfaces.
- forehead pads e.g., higher hardness for the attachment mechanism to the mask and lower hardness towards the patient
- support portions of a headband or string e.g., higher hardness for the attachment mechanism to the mask and lower hardness towards the patient
- an enhanced cushion to be attached to standard or harmonized frame interfaces.
- the present invention furthermore allows to optimize the structure of a patient interface and patient interface component, respectively, based on e.g. different material characteristics.
- the soft, preferably visco-elastic, foam can be used for providing a cushion for in combination with a portion of higher hardness for supporting the cushion, hidden behind and covering the back of the cushion.
- This is also combinable with hard contact or fastening or support area(s) towards a mask frame for attachment of the component to the mask.
- the production of such patient interface component is achieved in an effective and efficient manner.
- the present invention allows to co-mold a foamed low hardness undercushion to a high hardness support, preferably in one tool.
- a foamed low hardness undercushion to a high hardness support, preferably in one tool.
- one of the two parts, such as the foamed second part comprises coloured particles so that is has a predefined visual appearance.
- the present invention allows to manufacture such multi characteristic patient interface or patient interface component in one part and in one tool. At the same time it allows to be fitted to existing, non-modified frames.
- connection or merging surface between the first and second part.
- the tool according to the present invention is built as a tool on a turn table machine.
- the present invention allows to adjust the hardness/geometry of the foamed undercushion by changing only one mold half in the tool. It thus allows for anthropometrical adjustments in the tool with limited effort and/or costs.
- a patient interface component for a breathing mask comprising a receiving opening which in the position of application of the breathing mask coincides at least with the nose and/or mouth opening region of a user of the mask, and a sealing lip which is formed from an elastomer material and which extends around the receiving opening and which in the application position fits on the surface of the face of the user of the mask.
- Said patient interface component may comprise zones of thickened and/or reduced cross-section.
- the patient interface according to the invention can be of such a nature that it can be fitted for example by way of a peripheral edge portion in sealing relationship to a dish-shaped or arch-shaped body in the form of a hard shell member. That makes it possible for the mask pad device to be removed from the hard shell member for cleaning, replacement, and/or adaptation purposes.
- the patient interface component is also possible for the patient interface component to be formed integrally with the dish-shaped or arch-shaped body. That avoids the formation of a gap region between the patient interface or interface component and the dish-shaped or arch-shaped body.
- the patient interface component can be so designed that the radial cross-sections, that is to say preferably the cross-sections of the mask pad device, vary.
- the above-described patient interface component forms a component part of a patient interface such as a breathing mask which, in the application position, engages over the nose and/or the mouth region of the user of a mask. It can be used in a corresponding configuration in relation to a nasal mask and also in relation to a mouth or full-face mask.
- the configuration according to the invention of the cross-section of the elastomer structures can also be used in relation to a forehead contact element.
- forehead contact pads it is possible for forehead contact pads to be of such a configuration that the deformation characteristics thereof are imparted by foamed components.
- Method of manufacturing a component of a patient interface, particularly a cushion comprising the steps of molding a first part of the component and foaming a second part on the first part.
- Method according to any one of the preceding aspects further comprising the step of handling the first part, the second part and/or the component, wherein the first part constitutes the handling structure.
- Method of producing a component of a patient interface comprising the following steps: providing a molding tool having a first mold part and a second mold part which are adapted to define a first mold cavity there between; providing, preferably injecting, a first material into the first molding tool in order to provide a first part of the component; removing the first part from the first cavity; providing a third mold and a fourth mold part adapted to define a second mold cavity between them; inserting the first part into the second cavity; and providing a second foamed material into the second mold cavity in order to provide a foamed second part integral with the first part.
- Method according to any one of the preceding aspects further comprising the step of foaming the second material, preferably inside the second mold cavity and/or prior to providing the second material into the second mold cavity.
- Method according to any one of the preceding aspects wherein the hardness of the first part is higher than the hardness of the second part.
- Method according to any one of the preceding aspects wherein the second part is visco-elastic.
- Method according to any one of the preceding aspects wherein the second material is co-molded to the first portion.
- Method according to any one of the preceding aspects wherein first part removed from the first mold part and the second mold part and inserted into a third mold part and/or a fourth mold part, thereby defining, preferably in combination with the third mold part and/or the fourth mold part, a second cavity for foaming on a second part on the first part.
- first and/or second material comprises a color, preferably a differing color.
- a third mold part and/or a fourth mold part having at least one pressure rim structure and wherein the pressure rim structure(s) is/are sealingly pressed against the first part for defining a merging surface on the first part and/or for sealingly defining a second cavity.
- a first mold part and/or a second mold part are provided having at least one negative pressure rim structure and wherein the molded first part comprises at least one pressure rim structure molded by the negative pressure rim structure(s) of the first and/or second part.
- mold parts having a sealing means, preferably a silicone sealing lip and/or silicone sealing ring defining at least one pressure rim which is/are sealingly pressed against the first part for defining a merging surface on the first part and/or for sealingly defining a second cavity.
- a sealing means preferably a silicone sealing lip and/or silicone sealing ring defining at least one pressure rim which is/are sealingly pressed against the first part for defining a merging surface on the first part and/or for sealingly defining a second cavity.
- Component of a patient interface particularly a cushion, comprising a first part and a second part, wherein the second part is made of a foamed material which is foamed-on the first part.
- Component according to the previous aspect wherein the first part has a hardness greater than the hardness of the second part.
- the second part is a foam, e.g., polyurethane foam or silicone foam.
- the first part is a plastic material, preferably a polymer or a thermoplastic elastomer, which is preferably elastic or hard.
- the merging or contact surface of the first part is a plane, angled or U-shaped surface structure along at least a portion of the component's circumference, and wherein the second component is foamed-on the first part such that it at least partly merges at the contact or merging surface.
- the first portion comprises a thin membrane having a thickness of preferably about 0.1 to 1 mm and more preferably of about 0.35 mm.
- the component forms a cushion or an undercushion of a patient interface and wherein the second part forms the cushion or under-cushion, and wherein the first part forms a support structure that is adapted to be connected, preferably releasably connected, to a frame of the patient interface.
- the contact area between the first and second part is a substantially plane surface and/or a surface having a substantially plane cross-section.
- Component according to any one of the previous aspects constituting a face mask cushion, a forehead pad, and/or a component of a headband for securing a device at a wearer's head.
- Component according to any one of the previous aspects comprising a pressing flange on the first part, wherein the pressing flange, preferably at least partly, defines the boundary of the merging surface.
- Tool for manufacturing a component according to any one of the previous aspects and/or for performing a method according to any one of the previous aspects comprising first mold part, a second mold part, a third mold part and a fourth mold part, wherein the first mold part and the second mold part are adapted to define a first cavity, wherein a first part is moldable in the first cavity, and wherein the third mold part, the molded first part and/or the fourth mold part are adapted to define a second cavity, and wherein one or more pressure flange(s) is are provided integrally with the third mold part, the fourth mold part and/or the molded first part.
- pressure-flange(s) is/are adapted for sealingly contacting the third mold part, the first part and/or the fourth mold part such that the merging surface between the first part and the second part to be molded in the second cavity is defined by the pressure flange.
- first mold cavity is adapted to be filled with a first material in a first molding, preferably injection molding, step and wherein the second mold cavity is adapted to contain the first part and to be filled with a second foamed material.
- the third and/or fourth mold part comprise a sealing means, preferably an O-ring or sealing lip seated in a groove provided in the third and/or fourth mold part, wherein the merging surface between the first part and the second part to be molded in the second cavity is defined by the sealing means.
- a breathing mask comprising: a component according to any one of the previous aspects and/or a component manufactured by a method according to any one of the previous aspects or by a tool according to any one of the previous aspects.
- FIG. 1 is a schematic three-dimensional cross-sectional view of a patient interface component of the present invention, here a patient interface cushion with a support structure;
- FIG. 2 shows a schematic view of the cross-section of the component according to in FIG. 1 ;
- FIG. 3 shows a schematic three-dimensional cross-sectional view of another embodiment of a patient interface component according to the present invention, here a patient interface cushion with a support structure;
- FIG. 4 shows a schematic view of the cross-section of the component according to FIG. 3 ;
- FIG. 5 shows a three-dimensional schematic view of a component according to the present invention, here a patient interface cushion with a support structure;
- FIGS. 6 a to 6 d show preferred embodiments of components according to the present invention wherein FIGS. 6 a and 6 b show preferred embodiments of the component according to the present invention in combination with further structures of a patient's interface component, here a breathing mask and wherein FIGS. 6 c and 6 d show further preferred embodiments of the component according to the present invention.
- FIG. 1 shows a three-dimensional schematic cross-sectional view of a patient interface structure or component 1 according to the present invention.
- the patient interface structure comprises a first part 2 and a second part 3 wherein the second part 3 is made of a foamed material which is foamed on the first part 2 .
- the first part 2 and the second part 3 integrally merge at a merging surface 5 ( 5 a, 5 b ) which constitutes the contact area between the first part 2 and the second part 3 .
- the first part 2 constitutes a frame or a support portion wherein the second part 3 constitutes a cushion or under cushion portion of the patient interface.
- the patient interface component 1 according to the present invention, and preferably its first portion 2 preferably comprises structural fastening or connection means 4 for connecting the patient interface component 1 to a patient interface structure such as a breathing mask or a mask frame.
- the second part 3 is made of or comprises a foamed material or a foam material, preferably silicone foam or polyurethane foam.
- the first part 2 preferably is or comprises a plastic material such as a polymer, or thermoplastic elastomer.
- the first part 2 has a greater hardness than the second part 3 .
- the material of the second part 3 has greater elasticity and/or viscoelastisity than the material of the first part 2 .
- FIG. 2 shows a schematic cross-sectional view of the cross section shown on the right hand side in FIG. 1 .
- the contact or merging surface 5 between the first part 2 and the second part 3 comprises two distinct surface portions 5 a, 5 b which are inclined toward to another by an angle, preferably of about 90°, and form a contiguous contact zone or merging surface 5 .
- the first part (first molded part) 2 is molded in a first mold cavity between a first mold part (not shown) and a second mold part (not shown).
- the first molded part 2 is removed from the mold and is inserted into a second cavity formed or to be formed between a third mold part 7 and a fourth mold part 9 .
- the third mold part 7 and the fourth mold part 9 define a second cavity between them.
- the first molded part 2 is located in said second cavity wherein the second cavity is larger than the first molded part 2 .
- This remaining cavity is also referred to a second cavity herein.
- a part of the wall of said second cavity is defined by the first part 2 contained between the third mold part 7 and/or the fourth mold part 9 .
- Said second cavity being for molding the second part 3 .
- the second cavity and thus the second part 3 preferably has varying dimensions and measures, particularly along the circumference of the patient interface, and/or the contact surface 5 preferably has varying dimensions and measures, particularly along the circumference of the patient interface. This is shown, e.g. in FIG. 1 .
- the third mold part, the fourth mold part or any further mold parts according to the present invention can be constituted by one, two or more individual parts.
- the fourth mold part 9 can be defined by two mold parts 9 a and 9 b (not shown).
- the fourth mold part 9 and/or the third mold part 7 comprise a pressure-flange 11 for sealingly contacting the first molded part 2 contained in the second cavity between the third mold part 7 and the fourth mold part 9 .
- the pressure flange(s) is(are) designed and arranged such that it(they) defines (define) the contact of merging surface 5 on the first part 2 of the patient interface component 1 .
- the second cavity for molding the second part 3 of the patient interface component 1 is sealed against the first molded part so that a contact or merging surface 5 is defined forming part of the walls of the second cavity for molding the second part 3 of the patient interface 1 .
- At least one pressure flange 11 and preferably two pressure flanges 11 ( 11 a , 11 b ) is/are provided on the third mold part 7 , the fourth mold part 9 and/or the first part 2 .
- a pressure flange 11 is provided on the first part 2 this is preferably achieved by providing a negative form of the pressure flange 11 in the first mold part and/or the second mold part such that the pressure flange 11 is molded integrally with the first part 2 .
- the pressure flange(s) 11 allow forming of a second cavity by sealing the first part 2 , and particularly the merging surface 5 of the first part 2 against the third and/or fourth mold part.
- the second cavity is then filled with a foamed material for forming the second part 3 .
- a second material and/or a foaming agent are provided into the second cavity such that the second cavity is filled with a foamed or foaming material that contacts and merges with the first part 2 at merging or contact surface 5 .
- the contact or merging surface 5 can be a surface lying in one plane, or, as shown, e.g., in FIGS. 1 and 2 , a surface having surface portions lying in two or more planes.
- a third mold art 7 and a fourth mold part 9 have been schematically and exemplarily indicated.
- the third mold half 7 is shown to comprise a pressure flange 11 , preferably two pressure flanges 11 a and 11 b, which sealingly contact(s) the first part 2 .
- Each pressure flange 11 is arranged and designed such that it defines a, or part of a, contact or merging surface 5 .
- each pressure flange 11 is of a continuous structure such that there is defined an enclosed, clearly defined individual contact or merging surface 5 on the first part 2 .
- the pressure flange(s) have a continuous, ring like shape so that a continuous boundary of the merging surface 5 is defined. This can also be achieved by providing two or more pressure flanges which supplement one another to define such merging surface.
- merging surface 5 is of ring like shape, and is preferably defined by two ring like pressure flanges.
- two endless or loop-like pressure flanges 11 a and 11 b extending all around the circumference of a molded first part 2 and define between them the contact or merging surface 5 .
- This is of particular advantage for molding a patient interface components as shown in FIG. 1 , 3 , or 5 (discussed below) which are of generally circular, oval or triangular but generally ring-like shape.
- the pressure rim or pressure flange has a ring-like structure enclosing, inside said structure, the merging surface 5 .
- the patient interface component does not need to be generally ring-shaped, e.g., in case of a forehad cushion or a headband support.
- pressure rim or pressure flange 11 can also be provided on the fourth mold half 9 .
- the pressure flange or pressure rim 11 preferably seals the second mold cavity against the first part 2 .
- the second mold cavity is defined by the contact or merging surface 5 of the first part 2 and surface portions of the first mold part 7 and/or the third mold part 9 .
- at least one of the pressure flanges has an interruption, particularly in order to provide, e.g., a sprue or a venting structure.
- FIGS. 3 and 4 basically corresponds to the embodiment discussed above with regard to FIGS. 1 and 2 . It is thus referred to the above discussion.
- the embodiment shown in FIGS. 3 and 4 differs from the embodiment discussed above e.g. with regard to the structure and design of the contact surface 5 .
- the shape and structure of the contact surface 5 may vary along its length, here along the circumference of the patient interface component.
- a contact surface 5 (here referred to as 5 c ) is a plane surface. Compared thereto, on the right hand side in FIG.
- a contact surface 5 comprises different surface sections referred to as 5 d, 5 e, 5 f, 5 g, 5 h.
- the contact or merging surface 5 on the right hand side of FIG. 3 has a U-shaped structure with flange portions 5 d, 5 h at the opening of the U.
- contact surface 5 on the right hand side of the embodiment shown in FIG. 3 comprises a depression or groove 6 defined by surface portions 5 e, 5 f and 5 g.
- such structure or merging surface 5 can be manufactured by using a tool comprising a third mold half 7 and a fourth mold half 9 wherein the third mold half 7 comprises a pressure rim 11 d for sealingly contacting the first molded part 2 and defining one border or boundary of contact surface 5 .
- Fourth mold half 9 comprises a second pressure rim 11 c for sealingly contacting the first part 2 and defining a second border or boundary of contact surface 5 .
- the pressure rim(s) 11 provided on one or more of the mold halves and/or the first part 2 is/are a thin, preferably sharp rim or protrusion.
- Pressure flange(s) 11 is/are pressed against and into the material of the first part 2 and/or the mold halves in order to sealingly define the second cavity as discussed above.
- Pressure flange(s) 11 is/are either pressed against and into the molded first part 2 by pressing a mold part 9 and thus the pressure flange(s) against the first part 2 .
- one or more pressure flange(s) 11 sealingly abut(s) the first part 2 since it/they already form part of the third mold part 7 in which the first part 2 is inserted.
- the pressure flange protrudes from the remainder of the mold halves surfaces.
- the pressure rim has a tapered or pointed configuration.
- the shape and arrangement of the contact or merging surface is preferably adapted to apply certain structural features being advantageous for the molding process, the tool design and/or the final product, e.g. a patient interface component.
- the design of the merging surface 5 changes along the circumference of the first part 2 , preferably in order to exhibit certain functionalities and advantages discussed herein at predefined positions of a wearer's face.
- a contact or merging surface 5 comprising two angled surface components, such as surface portions 5 a and 5 b shown in FIGS. 1 and 2 , allows a clear positioning of the second part with respect to the first part and thus with respect to the remainder of the patient interface.
- the first part 2 defines a connection structure for connecting the second part 3 , preferably an under-cushion of a patient interface, to the face mask thereby facilitating guidance, connectability, exchangeability, individualizeability etc. of the patient interface component and thus the patient interface according to the present invention.
- This preferably allows a decoupling of the softer second part 3 from the mask body by means of the first molded part 2 serving as an adapter.
- the design of the contact or merging surface 5 is chosen to influence the hardness, elasticity and support functionality of the patient interface component and particularly of the foamed second part 3 , preferably constituting a patient interface under-cushion.
- contact surface shapes as shown in FIG. 2 or FIG. 4 allow a foaming of the second part 3 onto the first part 2 such that any potentially hygienically and/or optically deteriorated parts or surfaces of the foamed second part 3 are hidden and sealed by the merging surface 5 , e.g. in the corner of merging surface portions 5 a and 5 b according to FIG. 2 or in the recess 6 formed by surface portions 5 f, 5 g, 5 h according to FIG. 4 .
- the mold parts constituting the second mold cavity for forming the foamed second part 3 are designed and arranged such, e.g. with regard to gravity, that any potentially deteriorated and/or visually or hygienically disadvantageous part of the foamed second part and/or the merging surface 5 is covered or sealed as discussed above.
- venting structures 13 are formed into the first molded part 2 , preferably while molding the first part 2 .
- the respective venting structures or channels are provided in or at the contact or merging surface 5 and, preferably, in or at those portions discussed above as being suitable for hiding and sealing certain parts of the second part.
- a venting structure 13 is exemplary depicted as being provided in merging surface portion 5 f in groove 6 .
- pressure flange 11 can also be constituted by the provision of a sealing means or sealing ring, made of, e.g. silicone material.
- a sealing means or sealing ring made of, e.g. silicone material.
- such sealing ring preferably in the form of, e.g. a sealing lip, a flexible sealing means, an O-ring or the like, is attached to the third and/or fourth mold part(s) by the provision of a fastening groove for attaching said sealing means to the third mold part and/or fourth mold part.
- This embodiment comprising one or more silicone sealing structures or rings constituting pressure flange(s) is particularly preferred for manufacturing a second part 3 made of polyurethane foam.
- the pressure rim(s) are provided on the first part 2 for sealingly contacting the fourth mold part 9 .
- the pressure flange(s) 11 is/are part of the molded first part 2 . This is preferably achieved by providing a first and/or second groove or recess of the negative shape of the pressure flange 11 in the first mold part 7 and/or the second mold part so that the molded first part integrally comprises the pressure flange 11 .
- the first molded part 2 is designed such that it comprises a membrane forming a sealing lip for sealingly contacting a user's skin.
- FIG. 6 a shows a component according to the present invention comprising a first molded part 2 and a second foamed part 3 being attached to a mask frame 14 . Further attached to mask frame 14 is a membrane 15 which extends over second foamed part 3 .
- membrane 15 and/or component 1 are releasably attached to mask frame 14 by means of respective fastening means (not shown).
- membrane 15 extends over component 1 so that when the breathing mask is worn by a patient, membrane 15 contacts the user's skin wherein the mask is supported on the user's skin by means of component 1 , i.e., foamed second part 3 constituting a mask cushion or undercushion which is held or supported by means of first molded part 2 which is connected to the breathing mask via mask frame 14 .
- component 1 i.e., foamed second part 3 constituting a mask cushion or undercushion which is held or supported by means of first molded part 2 which is connected to the breathing mask via mask frame 14 .
- membrane 15 is a silicone membrane.
- FIG. 6 b shows the use of a component 1 according to the present invention similar to the embodiment discussed with regard to FIG. 6 a .
- membrane 15 is releasably attached to frame 14 wherein membrane 15 supports, covers, protects, and/or extends over component 1 .
- membrane 15 according to FIG. 6 b comprises a cavity or recess 16 which preferably allows a good gliding and dampening function of membrane 15 .
- Membrane 15 also comprises an abutment surface 17 which preferably supportingly abuts against component 1 .
- FIG. 6 c shows a first part 2 inserted in third mold half 7 .
- Mold part 2 as a generally u-shaped contour in the cross-section according to FIG. 6 c , wherein the ends of the generally u-shaped contour of first element 2 are bent.
- merging surface 5 d and 5 h are formed.
- at least one bent or bent end of the generally u-shaped contour of first element 2 extends beyond a second foam part 3 .
- a respective extension 18 is indicated in FIG. 6 c . It will be apparent for the person skilled in the art that a respective extension can be formed on both ends of u-shaped contour of first element 2 . Additionally and/or alternatively, a respective configuration can also be achieved with the embodiment shown in FIG. 7 .
- Extension 18 provides an additional advantageous possibility to apply a pressure rim (not shown in FIG. 6 c ) to define merging surface 5 h and to prevent foam or second foamed part 3 to extend beyond boundary point/line 19 .
- first part 2 is arranged in the upper part of the tool whereas second foamed part 3 constitutes the lower part of the tool. Accordingly, the foam constituting of building second foamed part 3 will build up from the lower part of the cavity (which is the upper end of second foamed part 3 according to FIG. 6 c ) and be build up or filled up to first molded part 2 .
- first part 2 and/or second part 3 preferably comprise the same or different colour pigments allowing to indicate, e.g., different sizes and/or structural features of component 1 .
- second part 2 comprises venting structures 13 which can be used for venting and/or filling of the second cavity for molding or foaming the second foamed part 3 .
- the present invention particularly the method according to the present invention and the tool according to the present invention allow an advantageous foaming of a second part on a first part which has been proven to be either not possible or disadvantageous as discussed in the introductory portion of the specification.
- material to be foamed or foamed material is generally a liquid material having a low viscosity and is formed under pressure so that the achievement of a reliable easy, efficient and effective seal in accordance with the present invention is of great advantage.
- Such material to be foamed or foamed material furthermore generally exhibits sticky characteristics.
- the present invention it is of advantage in order to avoid the production of deficient parts or clogging of the mold parts.
- the present invention moreover or alternatively allows improved connection and/or mounting of the foamed second part.
- the foaming of the second part on the first molded part preferably provides improved tolerances and/or sealing properties of the molded first and/or part against the remaining mask components and/or a patient's face.
- the present invention additionally or alternatively allows selective stiffening or reinforcing of the foamed second part by designing the first molded part and/or the merging surface accordingly. This leads to improved sealing properties of a patient interface component in line with the present invention.
- the present invention allows improved automating of production and particularly of the deforming of the foamed part and subsequent manufacturing steps such as flash removing.
- the filling and/or venting of the second cavity is improved.
- the present invention preferably alternatively or additionally allows the application of colour, such as coloured codes, to the molded parts, such as the foamed second part.
- automation of the assembly and hiding of defects is allowed.
Abstract
Description
- The invention relates to patient interfaces such as breathing masks covering nose and/or mouth of a patient and components or structures thereof as well as to methods for manufacturing such patient interfaces or components thereof and further relates to tools for manufacturing the same. Furthermore, the present invention relates to cushions, pads, supporting structures and/or sealing structures, such as mask cushions or forehead pads etc. for a patient interface such as a breathing mask. Moreover, the present invention relates to a patient interface or component of a patient interface obtainable by a method according to the present invention as well as to a tool for producing such interface or component and/or for performing a respective method.
- The invention concerns, in particular, a pad or cushion and a patient interface such as a breathing mask which is equipped with such pad or cushion. An internal space of a breathing mask is established by the patient interface in conjunction with sealing contact of the pad or cushion with the surface of the face of a user. This internal space is sealed in relation to the ambient atmosphere in such a way that a pressure which is preferably increased in relation to the ambient pressure can be obtained, e.g. in phase-wise fashion, in the internal space of the patient interface or breathing mask. Breathing masks of that kind are used in particular in connection with the medical or therapeutic administration of breathable gases and also in the technical sector, for example in the sector of breathing apparatus technology, and particularly for CPAP and BiPAP therapy. The invention further concerns a sealing, contact and/or support structure and a process and tool for the production thereof in general.
- Usually, with such patient interfaces, the sealing action in relation to the surface of the face of the user of the interface is achieved by a sealing lip structure. Such sealing lip structure, e.g., extends in inwardly directed relationship around an opening of the mask, and is made from an elastically deformable material.
- The sealing action achieved with sealing lips of that kind generally increases with the pressure with which the sealing lip is pressed against the surface of the face. In the case of comparatively high contact pressures, in particular long-term use of breathing masks of that kind can give rise to troubles.
- Patient interfaces and patient interface structures or components, e.g., sealing lips, are known in the prior art, for example, in the field of face masks for delivering breathable air to a patient. In such face masks, often hollow cushions or bent, resilient lip-structures are used for providing contact zones for contacting the face of the user in order to avoid dents and to improve wearing comfort of the user. Furthermore, such structures are used as a sealing structure for sealing the mask interior from the exterior in the contact region where the mask rests on a user's face.
- A disadvantage of structures known in the art is that they are complicated to manufacture and a number of manual manufacturing steps is often necessary. Often a number of different parts is manufactured wherein the parts are provided with connection structures and have to be assembled to form the final product.
- For examples, breathing masks are known which comprise an individually molded part made of polyurethane foam which is loosely fitted into the mask frame for constituting part of a face mask cushion. However, this kind of assembly requires providing structures in the mask seal, the mask body or both that allow for a mechanical linkage between these at least two components. This typically requires the use of additional materials to form different parts of a mask structure, increases the complexity of the design as well as the manufacture of the mask. This leads to limitations in design due to the requirements of providing connection structures, and requires a complex hand assembly or hand manipulation for assembling the mask etc.
- The solutions known in the prior art are in particular, not easy to handle, not durable, complicated and expensive to manufacture, not suitable for automating, not bio-compatible as well as optically and hygienically objectionable. The known solutions are further disadvantageous in that they do not or insufficiently allow individualization and are less comfortable for a wearer, particularly with regard to material properties such as weight and hardness.
- WO 2007/009182A1 refers to a respiratory mask and a method for manufacturing a respiratory mask comprising a first component formed from a material that is more rigid than the flexible material, wherein the first component is formed onto the second component by an over molding process.
- WO 03/105921A2 relates to a mask cushioning and forehead pad for a respiratory mask, and a method for its production comprising a mask cushioning having zones with an increased cross section that are configured in the mask cushioning, wherein the mask cushioning material in said zones has different material properties in such a way that the Shore hardness of the mask cushioning in the boarder region is higher than in the core region. Although, this disclosure is advantageous in that it provides a one piece hygienic component, it still suffers from the above disadvantageous, particularly from limitations in the design of the sealing structures and from complex manufacturing methods.
- It is an object underlying the present invention to provide a patient interface or a component of a patient interface, such as a cushion or pad, a method for manufacturing such patient interface and/or component as well as a tool for manufacturing the same which overcome the deficiencies of the prior art. Alternatively or additionally, it is an object underlying the present invention to provide a patient interface or component thereof which has an improved sealing effect and/or an improved level of wearing comfort. Alternatively or additionally, it is an object underlying the present invention to provide a method for manufacturing a patient interface or component thereof and/or a tool for manufacturing the same which allows efficient and effective production and handling of improved patient interfaces and/or components thereof.
- These objects are fulfilled with the features of the claims wherein dependent claims relate to preferred features of the present invention.
- The present invention relates to a patient interface structure or component, e.g., a breathing mask and components thereof. Such components are, e.g., a pad or a cushion for supporting and/or sealingly supporting a breathing mask or patient interface on a user's skin. Moreover, the present invention relates to a method and tool for manufacturing a patient interface or patient interface component, particularly those according to the present invention.
- According to the present invention, a component of a patient interface, such as a face mask, and in particular a patient interface cushion comprises a first part and a second part, wherein the second part is made of a foamed material which is foamed-on the first part. The first and second parts are preferably parallelly and/or subsequently co-molded. Preferably, the first and second part have a different hardness wherein the first part is molded in a first step and wherein the second part is subsequently molded-on or foamed-on the first part. Preferably, the first part is made of a hard material, particularly with regard to the second material, and the second material is made of a soft material, particularly with regard to the first material. Preferably, the first material is harder than the second material.
- Preferably, foaming-on of the second part to the first part and the co-molding of the first part and the second part results in the first and second part being formed integrally with one another.
- The method and tool according to present invention particularly allow to mold a foamed part on or onto another part in an easy, reliable, efficient and effective manner. In particular, the present invention does not require that a component of a first part and a foamed second part are formed by ‘surrounding’ the first part by a foamed material wherein the first part constitutes a core. Preferably, there is no positive locking or form closure needed for foaming or molding the second material to the first material.
- According to a further alternative or additional aspect, the present invention relates to a component of a patient interface, such as a breathing mask, and in particular to a patient interface cushion comprising a support structure, such as a frame-component and a cushion or undercushion for supporting the interface on a patient's face. Preferably, the component further comprises a membrane, particularly for sealing the cushion against a users face.
- According to a preferred aspect of the present invention, the first part and the second part integrally merge at a merging or contact surface constituting the contact area between said two parts. Said merging surface preferably is a substantially plane surface and/or a surface having a substantially plane cross-section. Preferably, the merging or contact surface comprises at least two distinct surface portions. Preferably, the merging or contact surface comprises a first surface portion and the second surface portion wherein the first surface portion and the second surface portion are inclined towards one another.
- Preferably, the merging or contact surface has a plane, an elbow-shaped, u-shaped, recessed, cup-like, and/or hook-shaped profile at least at a part of its cross-section. Preferably, the merging or contact surface does not have undercuts. Also preferably, the first portion and second portion solely merge via such merging surface and/or are not connected by means of structural or mechanical fastening means. Preferably, the contact surface of the first material comprises bores and/or cavities which are at least partly filled by the second material when foaming the second material on the first material.
- According to a preferred embodiment, the component of a patient interface according to the present invention is a breathing mask cushion for sealingly supporting a breathing mask on a wearer's face, a forehead pad for supporting a breathing mask on a wearer's face, part of a headband for securing a device such as a breathing mask to a wearer's head or other parts or components for contacting a wearer's body.
- Preferably, such interface comprises a thin membrane for sealingly contacting a user's skin and an undercushion being thicker than the the membrane and being arranged—when viewed from the patient—under or behind said membrane. Preferably, the second part according to the present invention constitutes such undercushion wherein the first part is adapted to support the second portion and to connect it to a patient interface frame. Preferably, the first part also comprises the membrane being integrally formed therewith or being, preferably releasably, attached thereto.
- Thus, preferably, the membrane forms an outer portion of the patient interface (cushion) for, preferably sealingly, contacting a wearer's skin wherein the second part or undercushion is shielded vis-à-vis the wearer's skin by the membrane and is attached, preferably releasably, to the patient interface by means of the first part. Thus, the second part preferably does not directly contact the wearer's skin.
- Preferably, a patient interface component, here e.g. a mask cushion, comprises a membrane or sealing lip portion and a cushion or undercushion comprising a connection portion for connecting it to a mask frame. The membrane or sealing lip portion is preferably an independent, non-integral part which is individually connected to the mask frame. According to an alternative preferred embodiment, the membrane or sealing lip portion is co-molded and integrally formed with support portions of the patient interface, such as, e.g., the mask frame and/or the first part according to the preset invention. The mask cushion or undercushion comprises a cushion portion and a connection portion. Preferably, the connection portion corresponds to the first part as referred to herein wherein the cushion portion corresponds to the second part as referred to herein. The connecting portion or the first part and the cushion portion or second part of the component, respectively, form a merging surface or contact area along which the first and second part merge. The second part is made of a foam or a foamed material. Preferably, the second part is co-molded to or foamed-on the first part along the contact area or merging surface.
- The component according to the invention preferably forms an undercushion of a breathing mask cushion which is shielded or covered vis-à-vis a wearer by a membrane or sealing lip portion which at least partially extends along and over undercushion portion, respectively, when assembled to a mask frame.
- Preferably, the second part is located in the mask interior oriented or facing towards the outside environment of the mask or towards a wearer, respectively whereas the first part of the mask cushion is located in the mask interior oriented or facing towards the inside of the mask or or away from a wearer, respectively.
- Preferably, the first part is not or does not comprise a foam or foamed material wherein the second part is made of or comprises a foamed material. Preferably, the first part has a first material characteristic and the second part has a second material characteristic different from the first material characteristic. Preferably, said characteristic is hardness. Preferably, the (first) hardness of the first part is higher than the (second) hardness of the second part.
- Preferred materials are resilient or elastic materials allowing application of different hardnesses. According to a preferred embodiment, the first part comprises a polymer, e.g., a polysiloxane; silicone; liquid silicone rubber, and/or thermoplastic elastomer. According to a preferred embodiment, the second part comprises foamed materials, e.g., foamed silicone and/or foamed polyurethane. Preferably, the second part is made of a material having visco-elastic properties.
- The breathing mask cushion and patient interface, respectively, preferably comprises a longitudinal axis extending generally perpendicular to a contact plane in which the cushion or interface substantially contacts a wearer. Preferably, at least a portion of the contact region or merging surface between the first part and the second part is parallel with regard to said axis and/or said contact plane in which the cushion or interface substantially contacts a wearer. Preferably, the contact region comprises one or more, at least two and preferably three distinct portions. According to a preferred embodiment the contact region is directed towards one side of the first/second part only. Preferably, the second part does not surround or include the first part or portions thereof. Preferably, the contact region, the first part and/or the second part are generally ring shaped. The ring can be closed or can be open, i.e. a ring-segment. The method and tool according to the present invention particularly allow to foam the second part on the first part from one side only and onto substantially plane surfaces, generally to any surface of the first part.
- In addition or alternatively, the present invention relates to a method for producing a component of a patient interface or a patient interface, respectively. In particular, the method according to the present invention relates to the production of a patient interface or component of a patient interface, such as a breathing mask cushion, as discussed and disclosed in the present application. A preferred method according to the present invention comprises the steps of providing a molding tool having a first mold part and a second mold part which are adapted to define a first mold cavity therebetween for molding a first part of said patient interface or patient interface component. A first material having first material characteristics, such as a first hardness, is injected into the first molding tool and into the first cavity defined thereby in order to provide the first part of the component. After said first material has been injected into the first cavity and has at least partially solidified or fully solidified the first mold cavity is opened and the first part is removed. Preferably, the molded first part is ejected or removed from the first mold part and is provided into a second cavity formed between at least a third and a fourth mold part. The third and fourth mold parts are designed and arranged so that the second mold cavity is established, as discussed above. The second cavity is larger than the first molded part so that a cavity is formed between the third mold part, the fourth mold part, and/or the first molded part.
- A second material having a second material characteristic, such as a second hardness, is then fed into the second mold cavity in order to provide a second part integral with the first part. The second material is provided as a foam or foamed material. This includes that the second material is introduced or fed into the second cavity in a foamed state and/or that the second material is foamed inside the second cavity, e.g., by mans of a foaming agent. Preferably, the second material is provided or fed into the second cavity at elevated pressure and/or resulting in an elevated pressure in the second cavity, e.g. by means of the foaming agent.
- Preferably, as discussed above with regard to the patient interface or patient interface component according to the present invention, the first material characteristic and the second material characteristic, such as the first hardness and the second hardness, differ from one another wherein, preferably, the first hardness is larger than the second hardness.
- The mold parts are preferably arranged around a turntable. After the first part has been molded, preferably injection molded, the first molded part is removed from the first mold cavity and the first mold part is provided into the second mold cavity by turning of the turntable and by placing it in a defined position in relation to the third and fourth mold part so that it is positioned in the second cavity. Then, the second part is molded.
- After the second molding step with which the second material of the second part has been provided or fed into the second cavity is finalized the tool is opened and the patient interface component can be ejected or withdrawn from the tool.
- According to a further aspect of the present invention, there is provided a tool for manufacturing a patient interface or a patient interface component as discussed in the present application and/or for performing a method as discussed in the present application. Aspects of such tool have already been discussed in combination with the patient interface component or the method of the invention.
- Such tool preferably comprises a first mold part and a second mold part which are adapted to define a first mold cavity therebetween. There is further provided a third mold part and a fourth mold part adapted to define a second mold cavity therebetween and/or between the first part of a patient interface component and the third and/or fourth mold part.
- Preferably, the first and second mold part define walls of said first cavity whereas the third mold part, the fourth mold part and/or the first molded part define walls of said second cavity. The wall of said second cavity is preferably partly formed by or comprises the merging surface or contact region formed by the first molded part of the patient interface component.
- The third mold part, the fourth mold part and/or the first molded part preferably comprise at least one pressure-flange for sealing the second cavity and preferably the first part against the third mold part and/or the fourth mold part.
- Preferably, the one or more pressure flange(s) is/are designed and arranged such that it/they define(s) the merging surface on the first part of the patient interface component. Thus, the second cavity for molding the second part of the patient interface component is sealed against the first molded part so that a contact or merging surface is defined forming part of the walls of the second cavity for molding the second part of the patient interface on the first part at the merging surface.
- In a preferred embodiment where at least one pressure flange is provided on the first nolded part this is preferably achieved by providing a negative form of the pressure flange by the first cavity, preferably in the first mold part and/or the second mold part such that the pressure flange is molded integrally with the first molded part. The pressure flange(s) allow forming of a second cavity by sealing the first molded part, and particularly the merging surface of the first molded part against the third and or fourth mold parts, respectively.
- Preferably, the first and second mold part providing the first cavity constitute an injection molding mold wherein the third and fourth mold part providing the second cavity constitute a foaming mold.
- Alternatively and/or additionally to the embodiments discussed above, the pressure flange(s) is/are preferably constituted by the provision of a sealing ring, made of, e.g. silicone material. Preferably, such sealing ring, e.g. in the form of an O-ring or the like, is attached to the third and/or fourth mold part(s) by the provision of a fastening groove for attaching said ring type pressure flange to the third mold part and/or fourth mold part. This embodiment comprising one or more silicone sealing rings constituting one or more pressure flange(s) is particularly preferred for manufacturing a second molded part made of polyurethane foam.
- The present invention is of particular advantage in that it provides an improved patient interface and patient interface component such as a breathing mask cushion with enhanced characteristics. In particular, the patient interface and patient interface component according to the present invention allows improved comfort for a wearer and avoids reddening and pressure marks occurring on a wearer's face. Moreover, the present invention allows the provision of special and interchangeable geometries and properties of a patient interface and a patient interface component for improved compliance with a user's physiognomy and anthropometry. The present invention particularly allows efficient and effective production of improved patient interfaces and/or components and an automated production. Moreover, optically and hygienically as well as structurally improved patient interfaces and patient interface components can be provided. In particular, individualization and comfortable wearing of such improved patient interfaces and patient interface components is allowed by the technology discussed and disclosed in this application. Preferably, the present invention additionally or alternatively allows the provision of an improved usability of the molded product, particularly by allowing the provision of a supporting structure integrally combined with a softer, foamed part.
- For example the use of a first and second molded part allows the provision of a soft and comfortable material for e.g. comfortably supporting a patient interface on a users skin and of a harder material for providing improved haptic and hygienic properties, for supporting the soft comfortable material, i.e., the second portion, and/or for allowing the provision of, e.g., additional fastening means for, e.g., securing, preferably releasably and interchangeably securing, a patient interface component to a patient interface frame. A patient interface according to the present invention preferably exhibits advanced comfort to a wearer due to its light weight and the second parts material properties, which are preferably visco-elastic.
- The method and tool according to the present invention particularly provide for an effective and efficient manufacturing of an improved patient interface or patient interface component having a improved characteristics. Also, the hardness and geometry of the patient interface or patient interface component may be easily adjusted or individualized without the need of an exchange of expensive tool components. Rather, e.g., a first, second, third and/or fourth mold part may be easily replaced or exchanged in order to adjust the above-listed characteristics wherein the remaining mold part(s) can be maintained. Moreover, the production of an improved patient interface or patient interface component with improved properties as regards comfort etc. is achieved in an easy and cheap manner in an automized process. Also, the present invention allows an improved production of harmonized and exchangeable modules for patient interfaces wherein the interface measures are maintained while only features relevant for the individual improvement of the patient interface or patient interface component are adjusted.
- The present invention particularly and preferably has the advantageous effect that it allows the provision of an improved manufacturing process and that, e.g. during production gripping or handling sections are comolded integrally with the first and/or second molded part. These gripping or handling parts can preferably be used for demolding the patient interface component and/or for handling the patient interface component during subsequent manufacturing and/or assembly steps. The gripping or handling parts are preferably being provided on the harder, non-foamed first part. Preferably, the gripping or handling parts are adapted to be easily removed when they are not needed any more. Preferably, such gripping or handling parts comprise a predetermined breaking point zone. Additionally and/or alternatively, the gripping or handling parts are provided on the first molded part. Preferably, these gripping or handling parts, at least partly, constitute part of the contact surface. Preferably, the second material is foamed on or over the gripping or handling parts provided on the first molded part. Thus, the present invention allows an improved and automated manufacturing process. In particular, the present invention allows to handle the first part by means of a handling part, e.g. from the first cavity to the second cavity, wherein the handling part is subsequently covered by the second
- The structure of the component of the present invention and particularly of the contact region or merging surface allows an improved filling and/or venting of the foaming tool. Moreover, the present invention preferably advantageously allows an easy and efficient production of the first part with high tolerances and low requirements or restrictions as regards the quality of the contact region or merging surface since this surface will be contacted and thus covered by the foamed second part. Furthermore, the preferred structure, e.g., a plane-, u-, cup- or elbow-shaped structure, of the merging surface of the first part allows to easily heal deficiencies in the optical appearance of the foamed second material. In particular, the preferred structures of the first part allow, e.g., to cover voids, vent structures and/or the like of the first part and/or foamed second part while at the same time allowing a secure and advanced integral connection between the first and second part.
- The present invention particularly allows to manufacture one part molded with different hardness zones and/or different functionalities for use as, e.g., forehead pads (e.g., higher hardness for the attachment mechanism to the mask and lower hardness towards the patient), support portions of a headband or string, or an enhanced cushion to be attached to standard or harmonized frame interfaces.
- The present invention furthermore allows to optimize the structure of a patient interface and patient interface component, respectively, based on e.g. different material characteristics. Thus, e.g., the soft, preferably visco-elastic, foam can be used for providing a cushion for in combination with a portion of higher hardness for supporting the cushion, hidden behind and covering the back of the cushion. This is also combinable with hard contact or fastening or support area(s) towards a mask frame for attachment of the component to the mask. At the same time, the production of such patient interface component is achieved in an effective and efficient manner.
- According to preferred embodiments, the present invention allows to co-mold a foamed low hardness undercushion to a high hardness support, preferably in one tool. There is provided, e.g., a low hardness and vino-elastic separately molded foamed silicone undercushion and a high hardness, preferably thin, support structure. Preferably, one of the two parts, such as the foamed second part comprises coloured particles so that is has a predefined visual appearance. Preferably, the present invention allows to manufacture such multi characteristic patient interface or patient interface component in one part and in one tool. At the same time it allows to be fitted to existing, non-modified frames. The use of foam or a foamed material as the second part is of particular advantage since it also allows, although not required, the provision of, preferably small, undercuts in the connection or merging surface between the first and second part. An advantageous, effective and strong but small connection zone or merging surface or design, particularly reduced in size, is achieved.
- Preferably, the tool according to the present invention is built as a tool on a turn table machine. The present invention allows to adjust the hardness/geometry of the foamed undercushion by changing only one mold half in the tool. It thus allows for anthropometrical adjustments in the tool with limited effort and/or costs.
- In accordance with an aspect of the present invention there is provided a patient interface component for a breathing mask comprising a receiving opening which in the position of application of the breathing mask coincides at least with the nose and/or mouth opening region of a user of the mask, and a sealing lip which is formed from an elastomer material and which extends around the receiving opening and which in the application position fits on the surface of the face of the user of the mask. Said patient interface component may comprise zones of thickened and/or reduced cross-section.
- In that way it is advantageously possible to provide a mask pad device which is distinguished by particularly high adaptability to the most widely varying individual face structures.
- The patient interface according to the invention can be of such a nature that it can be fitted for example by way of a peripheral edge portion in sealing relationship to a dish-shaped or arch-shaped body in the form of a hard shell member. That makes it possible for the mask pad device to be removed from the hard shell member for cleaning, replacement, and/or adaptation purposes.
- As an alternative to the measure described hereinbefore it is also possible for the patient interface component to be formed integrally with the dish-shaped or arch-shaped body. That avoids the formation of a gap region between the patient interface or interface component and the dish-shaped or arch-shaped body.
- The patient interface component can be so designed that the radial cross-sections, that is to say preferably the cross-sections of the mask pad device, vary.
- The above-described patient interface component forms a component part of a patient interface such as a breathing mask which, in the application position, engages over the nose and/or the mouth region of the user of a mask. It can be used in a corresponding configuration in relation to a nasal mask and also in relation to a mouth or full-face mask.
- The configuration according to the invention of the cross-section of the elastomer structures can also be used in relation to a forehead contact element. Thus, in accordance with a further and also alternative concept, it is possible for forehead contact pads to be of such a configuration that the deformation characteristics thereof are imparted by foamed components.
- Although the present application discusses the provision/production of a first molded part and a second molded part it is apparent for the person skilled in the art that also third and further molded parts having individual characteristics may be provided/produced.
- Additional and/or alternative preferred embodiments of the present invention are directed to the following aspects.
- Method of manufacturing a component of a patient interface, particularly a cushion, comprising the steps of molding a first part of the component and foaming a second part on the first part.
- Method according to any one of the preceding aspects, further comprising the step of handling the first part, the second part and/or the component, wherein the first part constitutes the handling structure.
- Method of producing a component of a patient interface, particularly according to any one of the preceding aspects, comprising the following steps: providing a molding tool having a first mold part and a second mold part which are adapted to define a first mold cavity there between; providing, preferably injecting, a first material into the first molding tool in order to provide a first part of the component; removing the first part from the first cavity; providing a third mold and a fourth mold part adapted to define a second mold cavity between them; inserting the first part into the second cavity; and providing a second foamed material into the second mold cavity in order to provide a foamed second part integral with the first part.
- Method according to any one of the preceding aspects, further comprising the step of foaming the second material, preferably inside the second mold cavity and/or prior to providing the second material into the second mold cavity.
- Method according to any one of the preceding aspects, wherein the hardness of the first part is higher than the hardness of the second part. Method according to any one of the preceding aspects, wherein the second part is visco-elastic.
- Method according to any one of the preceding aspects, wherein the second material is co-molded to the first portion. Method according to any one of the preceding aspects, wherein first part removed from the first mold part and the second mold part and inserted into a third mold part and/or a fourth mold part, thereby defining, preferably in combination with the third mold part and/or the fourth mold part, a second cavity for foaming on a second part on the first part.
- Method according to any one of the preceding aspects, wherein the first and/or second material comprises a color, preferably a differing color.
- Method according to any one of the preceding aspects, wherein a third mold part and/or a fourth mold part are provided having at least one pressure rim structure and wherein the pressure rim structure(s) is/are sealingly pressed against the first part for defining a merging surface on the first part and/or for sealingly defining a second cavity.
- Method according to any one of the preceding aspects, wherein a first mold part and/or a second mold part are provided having at least one negative pressure rim structure and wherein the molded first part comprises at least one pressure rim structure molded by the negative pressure rim structure(s) of the first and/or second part.
- Method according to any one of the preceding aspects, wherein mold parts are provided having a sealing means, preferably a silicone sealing lip and/or silicone sealing ring defining at least one pressure rim which is/are sealingly pressed against the first part for defining a merging surface on the first part and/or for sealingly defining a second cavity.
- Component of a patient interface, particularly a cushion, comprising a first part and a second part, wherein the second part is made of a foamed material which is foamed-on the first part. Component according to the previous aspect, wherein the first part has a hardness greater than the hardness of the second part.
- Component according to and one of the previous aspects, wherein the second part is a foam, e.g., polyurethane foam or silicone foam.
- Component according to any one of the previous aspects, wherein the first part is a plastic material, preferably a polymer or a thermoplastic elastomer, which is preferably elastic or hard.
- Component according to any one of the previous aspects, wherein the merging or contact surface of the first part is a plane, angled or U-shaped surface structure along at least a portion of the component's circumference, and wherein the second component is foamed-on the first part such that it at least partly merges at the contact or merging surface.
- Component according to any one of the previous aspects, wherein the first portion comprises a thin membrane having a thickness of preferably about 0.1 to 1 mm and more preferably of about 0.35 mm.
- Component according to any one of the previous aspects, wherein the component forms a cushion or an undercushion of a patient interface and wherein the second part forms the cushion or under-cushion, and wherein the first part forms a support structure that is adapted to be connected, preferably releasably connected, to a frame of the patient interface.
- Component according to any one of the previous aspects, wherein the contact area between the first and second part is a substantially plane surface and/or a surface having a substantially plane cross-section.
- Component according to any one of the previous aspects, constituting a face mask cushion, a forehead pad, and/or a component of a headband for securing a device at a wearer's head.
- Component according to any one of the previous aspects, comprising a pressing flange on the first part, wherein the pressing flange, preferably at least partly, defines the boundary of the merging surface.
- Component according to any one of the previous aspects, manufactured according to a method according to any one of the preceding aspects.
- Tool for manufacturing a component according to any one of the previous aspects and/or for performing a method according to any one of the previous aspects, comprising first mold part, a second mold part, a third mold part and a fourth mold part, wherein the first mold part and the second mold part are adapted to define a first cavity, wherein a first part is moldable in the first cavity, and wherein the third mold part, the molded first part and/or the fourth mold part are adapted to define a second cavity, and wherein one or more pressure flange(s) is are provided integrally with the third mold part, the fourth mold part and/or the molded first part.
- Tool according to any one of the previous aspects, wherein pressure-flange(s) is/are adapted for sealingly contacting the third mold part, the first part and/or the fourth mold part such that the merging surface between the first part and the second part to be molded in the second cavity is defined by the pressure flange.
- Tool according to any one of the previous aspects, wherein the first mold cavity is adapted to be filled with a first material in a first molding, preferably injection molding, step and wherein the second mold cavity is adapted to contain the first part and to be filled with a second foamed material.
- Tool according to any one of the previous aspects, wherein the third and/or fourth mold part comprise a sealing means, preferably an O-ring or sealing lip seated in a groove provided in the third and/or fourth mold part, wherein the merging surface between the first part and the second part to be molded in the second cavity is defined by the sealing means.
- A breathing mask comprising: a component according to any one of the previous aspects and/or a component manufactured by a method according to any one of the previous aspects or by a tool according to any one of the previous aspects.
- Use of a tool according to any one of the previous aspects to perform a method according to any one of the previous aspects and/or for manufacturing a component according to any one of the previous aspects.
- Other aspects, features, and advantages of this invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, which are a part of this disclosure and which illustrate, by way of example, principles of the invention.
- The accompanying drawings facilitate an understanding of the various embodiments of this invention. In such drawings:
-
FIG. 1 is a schematic three-dimensional cross-sectional view of a patient interface component of the present invention, here a patient interface cushion with a support structure; -
FIG. 2 shows a schematic view of the cross-section of the component according to inFIG. 1 ; -
FIG. 3 shows a schematic three-dimensional cross-sectional view of another embodiment of a patient interface component according to the present invention, here a patient interface cushion with a support structure; -
FIG. 4 shows a schematic view of the cross-section of the component according toFIG. 3 ; -
FIG. 5 shows a three-dimensional schematic view of a component according to the present invention, here a patient interface cushion with a support structure; and -
FIGS. 6 a to 6 d show preferred embodiments of components according to the present invention whereinFIGS. 6 a and 6 b show preferred embodiments of the component according to the present invention in combination with further structures of a patient's interface component, here a breathing mask and whereinFIGS. 6 c and 6 d show further preferred embodiments of the component according to the present invention. - The following description is provided in relation to several embodiments which may share common characteristics and features. It is to be understood that one or more features of any one embodiment may be combinable with one or more features of the other embodiments. In addition, each single feature or combination of features in any of the embodiments may constitute an additional embodiment.
- In this specification, the word “comprising” is to be understood in its “open” sense, that is, in the sense of “including”, and thus not limited to its “closed” sense, that is the sense of “consisting of”. A corresponding meaning is to be attributed to the corresponding words “comprise”, “comprised” and “comprises” where they appear.
- In accordance with the present invention,
FIG. 1 shows a three-dimensional schematic cross-sectional view of a patient interface structure orcomponent 1 according to the present invention. The patient interface structure comprises afirst part 2 and asecond part 3 wherein thesecond part 3 is made of a foamed material which is foamed on thefirst part 2. Thefirst part 2 and thesecond part 3 integrally merge at a merging surface 5 (5 a, 5 b) which constitutes the contact area between thefirst part 2 and thesecond part 3. According to the embodiment shown inFIG. 1 , thefirst part 2 constitutes a frame or a support portion wherein thesecond part 3 constitutes a cushion or under cushion portion of the patient interface. Thepatient interface component 1 according to the present invention, and preferably itsfirst portion 2, preferably comprises structural fastening or connection means 4 for connecting thepatient interface component 1 to a patient interface structure such as a breathing mask or a mask frame. - The
second part 3 is made of or comprises a foamed material or a foam material, preferably silicone foam or polyurethane foam. Thefirst part 2 preferably is or comprises a plastic material such as a polymer, or thermoplastic elastomer. Preferably, thefirst part 2 has a greater hardness than thesecond part 3. Furthermore, preferably, the material of thesecond part 3 has greater elasticity and/or viscoelastisity than the material of thefirst part 2. -
FIG. 2 shows a schematic cross-sectional view of the cross section shown on the right hand side inFIG. 1 . As shown inFIGS. 1 and 2 the contact or merging surface 5 between thefirst part 2 and thesecond part 3 comprises twodistinct surface portions - During manufacturing, the first part (first molded part) 2 is molded in a first mold cavity between a first mold part (not shown) and a second mold part (not shown). After molding of the
first part 2, the first moldedpart 2 is removed from the mold and is inserted into a second cavity formed or to be formed between athird mold part 7 and afourth mold part 9. Preferably, thethird mold part 7 and thefourth mold part 9 define a second cavity between them. Preferably, the first moldedpart 2 is located in said second cavity wherein the second cavity is larger than the first moldedpart 2. Thus, once the first moldedpart 2 is inserted into the cavity formed between the third and fourth mold part and the third and fourth mold parts are closed still a cavity remains. This remaining cavity is also referred to a second cavity herein. Preferably, a part of the wall of said second cavity is defined by thefirst part 2 contained between thethird mold part 7 and/or thefourth mold part 9. Said second cavity being for molding thesecond part 3. - The second cavity and thus the
second part 3 preferably has varying dimensions and measures, particularly along the circumference of the patient interface, and/or the contact surface 5 preferably has varying dimensions and measures, particularly along the circumference of the patient interface. This is shown, e.g. inFIG. 1 . - Generally, it is to be noted that the third mold part, the fourth mold part or any further mold parts according to the present invention can be constituted by one, two or more individual parts. For example, in the embodiment shown in
FIG. 2 , thefourth mold part 9 can be defined by two mold parts 9 a and 9 b (not shown). - The
fourth mold part 9 and/or thethird mold part 7 comprise a pressure-flange 11 for sealingly contacting the first moldedpart 2 contained in the second cavity between thethird mold part 7 and thefourth mold part 9. - Preferably, the pressure flange(s) is(are) designed and arranged such that it(they) defines (define) the contact of merging surface 5 on the
first part 2 of thepatient interface component 1. Thus, the second cavity for molding thesecond part 3 of thepatient interface component 1 is sealed against the first molded part so that a contact or merging surface 5 is defined forming part of the walls of the second cavity for molding thesecond part 3 of thepatient interface 1. - Additionally or alternatively, at least one pressure flange 11, and preferably two pressure flanges 11 (11 a, 11 b) is/are provided on the
third mold part 7, thefourth mold part 9 and/or thefirst part 2. In a preferred embodiment, where a pressure flange 11 is provided on thefirst part 2 this is preferably achieved by providing a negative form of the pressure flange 11 in the first mold part and/or the second mold part such that the pressure flange 11 is molded integrally with thefirst part 2. The pressure flange(s) 11 allow forming of a second cavity by sealing thefirst part 2, and particularly the merging surface 5 of thefirst part 2 against the third and/or fourth mold part. - The second cavity is then filled with a foamed material for forming the
second part 3. Preferably, a second material and/or a foaming agent are provided into the second cavity such that the second cavity is filled with a foamed or foaming material that contacts and merges with thefirst part 2 at merging or contact surface 5. - The contact or merging surface 5 can be a surface lying in one plane, or, as shown, e.g., in
FIGS. 1 and 2 , a surface having surface portions lying in two or more planes. InFIG. 2 , athird mold art 7 and afourth mold part 9 have been schematically and exemplarily indicated. Thethird mold half 7 is shown to comprise a pressure flange 11, preferably twopressure flanges first part 2. Each pressure flange 11 is arranged and designed such that it defines a, or part of a, contact or merging surface 5. Preferably, each pressure flange 11 is of a continuous structure such that there is defined an enclosed, clearly defined individual contact or merging surface 5 on thefirst part 2. Preferably, the pressure flange(s) have a continuous, ring like shape so that a continuous boundary of the merging surface 5 is defined. This can also be achieved by providing two or more pressure flanges which supplement one another to define such merging surface. Preferably, merging surface 5 is of ring like shape, and is preferably defined by two ring like pressure flanges. - Preferably there will be provided two endless or loop-
like pressure flanges first part 2 and define between them the contact or merging surface 5. This is of particular advantage for molding a patient interface components as shown inFIG. 1 , 3, or 5 (discussed below) which are of generally circular, oval or triangular but generally ring-like shape. Alternatively, the pressure rim or pressure flange has a ring-like structure enclosing, inside said structure, the merging surface 5. In such case, the patient interface component does not need to be generally ring-shaped, e.g., in case of a forehad cushion or a headband support. - Alternatively, pressure rim or pressure flange 11 can also be provided on the
fourth mold half 9. - The pressure flange or pressure rim 11 preferably seals the second mold cavity against the
first part 2. Thus, the second mold cavity is defined by the contact or merging surface 5 of thefirst part 2 and surface portions of thefirst mold part 7 and/or thethird mold part 9. Preferably, at least one of the pressure flanges has an interruption, particularly in order to provide, e.g., a sprue or a venting structure. - The embodiment shown in
FIGS. 3 and 4 basically corresponds to the embodiment discussed above with regard toFIGS. 1 and 2 . It is thus referred to the above discussion. The embodiment shown inFIGS. 3 and 4 differs from the embodiment discussed above e.g. with regard to the structure and design of the contact surface 5. As can be seen in the cross-sectional view according toFIG. 3 , the shape and structure of the contact surface 5 may vary along its length, here along the circumference of the patient interface component. As shown on the left hand side inFIG. 3 , a contact surface 5 (here referred to as 5 c) is a plane surface. Compared thereto, on the right hand side inFIG. 3 a contact surface 5 comprises different surface sections referred to as 5 d, 5 e, 5 f, 5 g, 5 h. In its general structure, the contact or merging surface 5 on the right hand side ofFIG. 3 has a U-shaped structure withflange portions FIG. 3 comprises a depression orgroove 6 defined bysurface portions - As shown in
FIG. 4 , such structure or merging surface 5 can be manufactured by using a tool comprising athird mold half 7 and afourth mold half 9 wherein thethird mold half 7 comprises apressure rim 11 d for sealingly contacting the first moldedpart 2 and defining one border or boundary of contact surface 5.Fourth mold half 9 comprises a second pressure rim 11 c for sealingly contacting thefirst part 2 and defining a second border or boundary of contact surface 5. - The discussions provided above with regard to the definition of the second cavity or the structure of the tool etc. also apply to the embodiment shown in
FIGS. 3 and 4 . - According to the present invention, the pressure rim(s) 11 provided on one or more of the mold halves and/or the
first part 2 is/are a thin, preferably sharp rim or protrusion. Pressure flange(s) 11 is/are pressed against and into the material of thefirst part 2 and/or the mold halves in order to sealingly define the second cavity as discussed above. Pressure flange(s) 11 is/are either pressed against and into the moldedfirst part 2 by pressing amold part 9 and thus the pressure flange(s) against thefirst part 2. Additionally or alternatively, one or more pressure flange(s) 11 sealingly abut(s) thefirst part 2 since it/they already form part of thethird mold part 7 in which thefirst part 2 is inserted. - Preferably, the pressure flange protrudes from the remainder of the mold halves surfaces. Preferably, the pressure rim has a tapered or pointed configuration.
- The shape and arrangement of the contact or merging surface is preferably adapted to apply certain structural features being advantageous for the molding process, the tool design and/or the final product, e.g. a patient interface component. According to a preferred embodiment, the design of the merging surface 5 changes along the circumference of the
first part 2, preferably in order to exhibit certain functionalities and advantages discussed herein at predefined positions of a wearer's face. For example, a contact or merging surface 5 comprising two angled surface components, such assurface portions FIGS. 1 and 2 , allows a clear positioning of the second part with respect to the first part and thus with respect to the remainder of the patient interface. For example, according to a preferred embodiment, thefirst part 2 defines a connection structure for connecting thesecond part 3, preferably an under-cushion of a patient interface, to the face mask thereby facilitating guidance, connectability, exchangeability, individualizeability etc. of the patient interface component and thus the patient interface according to the present invention. This preferably allows a decoupling of the softersecond part 3 from the mask body by means of the first moldedpart 2 serving as an adapter. - Alternatively or additionally, the design of the contact or merging surface 5 is chosen to influence the hardness, elasticity and support functionality of the patient interface component and particularly of the foamed
second part 3, preferably constituting a patient interface under-cushion. - Furthermore, contact surface shapes as shown in
FIG. 2 orFIG. 4 allow a foaming of thesecond part 3 onto thefirst part 2 such that any potentially hygienically and/or optically deteriorated parts or surfaces of the foamedsecond part 3 are hidden and sealed by the merging surface 5, e.g. in the corner of mergingsurface portions FIG. 2 or in therecess 6 formed bysurface portions FIG. 4 . Preferably, the mold parts constituting the second mold cavity for forming the foamedsecond part 3 are designed and arranged such, e.g. with regard to gravity, that any potentially deteriorated and/or visually or hygienically disadvantageous part of the foamed second part and/or the merging surface 5 is covered or sealed as discussed above. - According to a further preferred embodiment of the present invention, venting
structures 13 are formed into the first moldedpart 2, preferably while molding thefirst part 2. Preferably, the respective venting structures or channels are provided in or at the contact or merging surface 5 and, preferably, in or at those portions discussed above as being suitable for hiding and sealing certain parts of the second part. E.g., inFIG. 4 , a ventingstructure 13 is exemplary depicted as being provided in mergingsurface portion 5 f ingroove 6. - Alternatively and/or additionally to the embodiments discussed above, pressure flange 11 can also be constituted by the provision of a sealing means or sealing ring, made of, e.g. silicone material. Preferably, such sealing ring, preferably in the form of, e.g. a sealing lip, a flexible sealing means, an O-ring or the like, is attached to the third and/or fourth mold part(s) by the provision of a fastening groove for attaching said sealing means to the third mold part and/or fourth mold part. This embodiment comprising one or more silicone sealing structures or rings constituting pressure flange(s) is particularly preferred for manufacturing a
second part 3 made of polyurethane foam. - According to a preferred embodiment, the pressure rim(s) are provided on the
first part 2 for sealingly contacting thefourth mold part 9. In this case, the pressure flange(s) 11 is/are part of the moldedfirst part 2. This is preferably achieved by providing a first and/or second groove or recess of the negative shape of the pressure flange 11 in thefirst mold part 7 and/or the second mold part so that the molded first part integrally comprises the pressure flange 11. - According to a preferred embodiment, the first molded
part 2 is designed such that it comprises a membrane forming a sealing lip for sealingly contacting a user's skin. -
FIG. 6 a shows a component according to the present invention comprising a first moldedpart 2 and a secondfoamed part 3 being attached to amask frame 14. Further attached tomask frame 14 is amembrane 15 which extends over second foamedpart 3. Preferably,membrane 15 and/or component 1 (comprising first moldedpart 2 and second part 3) are releasably attached tomask frame 14 by means of respective fastening means (not shown). Preferably,membrane 15 extends overcomponent 1 so that when the breathing mask is worn by a patient,membrane 15 contacts the user's skin wherein the mask is supported on the user's skin by means ofcomponent 1, i.e., foamedsecond part 3 constituting a mask cushion or undercushion which is held or supported by means of first moldedpart 2 which is connected to the breathing mask viamask frame 14. Preferably,membrane 15 is a silicone membrane. -
FIG. 6 b shows the use of acomponent 1 according to the present invention similar to the embodiment discussed with regard toFIG. 6 a. As with the embodiment shown inFIG. 6 a,membrane 15 is releasably attached to frame 14 whereinmembrane 15 supports, covers, protects, and/or extends overcomponent 1. Contrary to the embodiment shown inFIG. 6 a,membrane 15 according toFIG. 6 b comprises a cavity orrecess 16 which preferably allows a good gliding and dampening function ofmembrane 15.Membrane 15 also comprises anabutment surface 17 which preferably supportingly abuts againstcomponent 1. -
FIG. 6 c shows afirst part 2 inserted inthird mold half 7.Mold part 2 as a generally u-shaped contour in the cross-section according toFIG. 6 c, wherein the ends of the generally u-shaped contour offirst element 2 are bent. Thus, corresponding to the embodiment shown and discussed with regard toFIG. 4 , mergingsurface first element 2 extends beyond asecond foam part 3. Arespective extension 18 is indicated inFIG. 6 c. It will be apparent for the person skilled in the art that a respective extension can be formed on both ends of u-shaped contour offirst element 2. Additionally and/or alternatively, a respective configuration can also be achieved with the embodiment shown inFIG. 7 . -
Extension 18 provides an additional advantageous possibility to apply a pressure rim (not shown inFIG. 6 c) to define mergingsurface 5 h and to prevent foam or secondfoamed part 3 to extend beyond boundary point/line 19. - With regard to gravity, when foaming
second part 3 ontofirst part 2,first part 2 is arranged in the upper part of the tool whereas second foamedpart 3 constitutes the lower part of the tool. Accordingly, the foam constituting of building second foamedpart 3 will build up from the lower part of the cavity (which is the upper end of second foamedpart 3 according toFIG. 6 c) and be build up or filled up to first moldedpart 2. - As already indicated,
first part 2 and/orsecond part 3 preferably comprise the same or different colour pigments allowing to indicate, e.g., different sizes and/or structural features ofcomponent 1. - The preferred embodiment according to
FIG. 6 d generally corresponds to the one discussed with regard toFIG. 6 c whereinextensions 18 are provided on both ends offirst parts 2 generally u-shaped contour. In addition,second part 2 comprises ventingstructures 13 which can be used for venting and/or filling of the second cavity for molding or foaming the second foamedpart 3. - The present invention, particularly the method according to the present invention and the tool according to the present invention allow an advantageous foaming of a second part on a first part which has been proven to be either not possible or disadvantageous as discussed in the introductory portion of the specification. In this context, it is particularly to be noted that material to be foamed or foamed material is generally a liquid material having a low viscosity and is formed under pressure so that the achievement of a reliable easy, efficient and effective seal in accordance with the present invention is of great advantage. Such material to be foamed or foamed material furthermore generally exhibits sticky characteristics. Thus, the present invention it is of advantage in order to avoid the production of deficient parts or clogging of the mold parts. Thus, according to the present invention, there is no need to cut off or stamp out certain parts of the foamed material or to clean any remaining surfaces of the mold parts or the first molded part.
- The present invention moreover or alternatively allows improved connection and/or mounting of the foamed second part. The foaming of the second part on the first molded part preferably provides improved tolerances and/or sealing properties of the molded first and/or part against the remaining mask components and/or a patient's face. Preferably, the present invention additionally or alternatively allows selective stiffening or reinforcing of the foamed second part by designing the first molded part and/or the merging surface accordingly. This leads to improved sealing properties of a patient interface component in line with the present invention. Correspondingly, the present invention allows improved automating of production and particularly of the deforming of the foamed part and subsequent manufacturing steps such as flash removing. Preferably, also the filling and/or venting of the second cavity is improved. The present invention preferably alternatively or additionally allows the application of colour, such as coloured codes, to the molded parts, such as the foamed second part. Correspondingly, automation of the assembly and hiding of defects is allowed.
- While the invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Also, the various embodiments described above may be implemented in conjunction with other embodiments, e.g., aspects of one embodiment may be combined with aspects of another embodiment to realize yet other embodiments. Further, each independent feature or component of any given assembly may constitute an additional embodiment. In addition, while the invention has particular application to patients who suffer from sleep disordered breathing such as OSA, it is to be appreciated that patients who suffer from other illnesses (e.g., congestive heart failure, diabetes, morbid obesity, stroke, bariatric surgery, etc.) can derive benefit from the above teachings. Moreover, the above teachings have applicability with patients and non-patients alike in non-medical applications.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/945,532 US10786642B2 (en) | 2009-01-30 | 2018-04-04 | Patient interface structure and method/tool for manufacturing same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09001344.2 | 2009-01-30 | ||
EP09001344.2A EP2213324B1 (en) | 2009-01-30 | 2009-01-30 | Patient interface structure and method/tool for manufacturing same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/945,532 Continuation US10786642B2 (en) | 2009-01-30 | 2018-04-04 | Patient interface structure and method/tool for manufacturing same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100192955A1 true US20100192955A1 (en) | 2010-08-05 |
Family
ID=40637109
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/656,466 Abandoned US20100192955A1 (en) | 2009-01-30 | 2010-01-29 | Patient interface structure and method/tool for manufacturing same |
US15/945,532 Active 2030-11-08 US10786642B2 (en) | 2009-01-30 | 2018-04-04 | Patient interface structure and method/tool for manufacturing same |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/945,532 Active 2030-11-08 US10786642B2 (en) | 2009-01-30 | 2018-04-04 | Patient interface structure and method/tool for manufacturing same |
Country Status (2)
Country | Link |
---|---|
US (2) | US20100192955A1 (en) |
EP (1) | EP2213324B1 (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100101581A1 (en) * | 2007-01-22 | 2010-04-29 | Map Medizin-Technologie Gmbh | Hollow structure and method/tool for manufacturing same |
US8485192B2 (en) | 2005-01-12 | 2013-07-16 | Resmed Limited | Cushion for patient interface |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
US8522784B2 (en) | 2008-03-04 | 2013-09-03 | Resmed Limited | Mask system |
US8944061B2 (en) | 2005-10-14 | 2015-02-03 | Resmed Limited | Cushion to frame assembly mechanism |
WO2015193408A1 (en) * | 2014-06-17 | 2015-12-23 | Resmed Limited | A seal forming structure for a patient interface and a tool and method of manufacturing the seal forming structure |
US9381316B2 (en) | 2005-10-25 | 2016-07-05 | Resmed Limited | Interchangeable mask assembly |
WO2017011571A1 (en) * | 2015-07-14 | 2017-01-19 | Qalo Llc | Compression molded silicone ring |
US9943146B2 (en) | 2015-05-27 | 2018-04-17 | Qalo Llc | Compression molded silicone ring |
USD823454S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD823455S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD824020S1 (en) | 2017-02-23 | 2018-07-24 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD855793S1 (en) | 2017-09-20 | 2019-08-06 | Fisher & Paykel Healthcare Limited | Frame for a nasal mask |
US10449316B2 (en) | 2012-12-13 | 2019-10-22 | Koninklijke Philips N.V. | Mask with red mark alleviating pocket |
US10518054B2 (en) | 2014-08-25 | 2019-12-31 | Fisher & Paykel Healthcare Limited | Respiratory mask and related portions, components or sub-assemblies |
USD874646S1 (en) | 2017-03-09 | 2020-02-04 | Fisher & Paykel Healthcare Limited | Headgear component for a nasal mask assembly |
USD875242S1 (en) | 2017-09-20 | 2020-02-11 | Fisher & Paykel Healthcare Limited | Nasal mask and breathing tube set |
US10603456B2 (en) | 2011-04-15 | 2020-03-31 | Fisher & Paykel Healthcare Limited | Interface comprising a nasal sealing portion |
USD884153S1 (en) | 2018-04-04 | 2020-05-12 | Fisher & Paykel Healthcare Limited | Frame for a mask assembly |
US10786642B2 (en) | 2009-01-30 | 2020-09-29 | ResMed Pty Ltd | Patient interface structure and method/tool for manufacturing same |
US10821250B2 (en) | 2012-11-16 | 2020-11-03 | Fisher & Paykel Healthcare Limited | Nasal seal and respiratory interface |
USD901673S1 (en) | 2017-03-09 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Frame and breathing tube assembly for a nasal mask |
US10828441B2 (en) | 2011-04-15 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10946155B2 (en) | 2012-09-04 | 2021-03-16 | Fisher & Paykel Healthcare Limited | Valsalva mask |
US10994090B2 (en) | 2015-09-04 | 2021-05-04 | Fisher & Paykel Healthcare Limited | Patient interfaces |
EP3831435A1 (en) * | 2011-07-01 | 2021-06-09 | Fisher & Paykel Healthcare Limited | Mask's clip for overmoulding |
JP2021183153A (en) * | 2014-10-10 | 2021-12-02 | レスメド・プロプライエタリー・リミテッド | Foam cushion respiratory apparatus |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11419999B2 (en) | 2013-08-05 | 2022-08-23 | Fisher & Paykel Healthcare Limited | Seal for a patient interface, interface assemblies and aspects thereof |
US11452833B2 (en) | 2016-10-05 | 2022-09-27 | Fisher & Paykel Healthcare Limited. | Patient interfaces |
US11529484B2 (en) * | 2014-06-17 | 2022-12-20 | ResMed Pty Ltd | Seal forming portion, pad and cushion for a patient interface and method of manufacturing |
US11701486B2 (en) | 2014-06-17 | 2023-07-18 | Fisher & Paykel Healthcare Limited | Patient interfaces |
USD1017795S1 (en) | 2022-10-17 | 2024-03-12 | Fisher & Paykel Healthcare Limited | Frame of a nasal mask |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140326246A1 (en) * | 2011-12-06 | 2014-11-06 | Koninklijke Philips N.V. | Cushion assembly having compression dampening portion |
US10987477B2 (en) | 2013-02-04 | 2021-04-27 | ResMed Pty Ltd | Respiratory apparatus |
NZ777484A (en) | 2013-02-04 | 2023-01-27 | ResMed Pty Ltd | Respiratory apparatus |
US10004867B2 (en) | 2013-02-04 | 2018-06-26 | Resmed Limited | Respiratory apparatus |
USD809131S1 (en) | 2014-08-04 | 2018-01-30 | Resmed Limited | Respiratory mask assembly |
US10413692B2 (en) | 2013-02-04 | 2019-09-17 | ResMed Pty Ltd | Cushion assembly |
US10974007B2 (en) * | 2019-03-07 | 2021-04-13 | Sleepnet Corporation | Facemask seal |
CN111228897A (en) * | 2020-02-17 | 2020-06-05 | 苏州桐力光电股份有限公司 | Organosilicon porous breathable sterilizing nano filter material for mask and preparation method thereof |
Citations (101)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1125542A (en) * | 1914-03-11 | 1915-01-19 | Aubrey Humphries | Apparatus for use in administering anesthetics. |
US1445010A (en) * | 1920-11-15 | 1923-02-13 | William S Feinberg | Breathing apparatus for swimmers |
US2415846A (en) * | 1944-10-23 | 1947-02-18 | Randall Francis Eugene | Oronasal mask |
US2625155A (en) * | 1950-12-11 | 1953-01-13 | Arthur E Engelder | Face mask |
US2706983A (en) * | 1951-09-15 | 1955-04-26 | Willson Products Inc | Flexible construction in respirator mask facepiece |
US2931356A (en) * | 1958-08-25 | 1960-04-05 | Puritan Compressed Gas Corp | Oxygen mask having detachable face seal cushion |
US3848925A (en) * | 1972-11-02 | 1974-11-19 | Coach & Car Equip Corp | Transit vehicle seat |
US3861385A (en) * | 1972-08-25 | 1975-01-21 | Edward Carden | Anaesthetist{3 s ventilation |
US3938614A (en) * | 1972-06-20 | 1976-02-17 | Aktiebolaget Lennartsfors Mekaniska Verkstad | Cushion member for sound-proof sealing |
US4006744A (en) * | 1974-06-24 | 1977-02-08 | Abbott Laboratories | Locking cannula mount |
US4142527A (en) * | 1977-02-07 | 1979-03-06 | Garcia Nelson C | Endotracheal tube holder |
US4248218A (en) * | 1978-09-22 | 1981-02-03 | Fischer Charles M | Gas administration scavenging mask |
US4263908A (en) * | 1979-07-25 | 1981-04-28 | Mizerak Vladimir S | Nasal cannula mask |
US4264743A (en) * | 1979-04-23 | 1981-04-28 | Nhk Spring Co., Ltd. | Polyurethane foam sealing material and process for producing the same |
US4312359A (en) * | 1980-02-19 | 1982-01-26 | Life Care Systems, Inc. | Noninvasive blood pressure measuring system |
US4367816A (en) * | 1981-06-10 | 1983-01-11 | Wilkes Kenneth R | Tear strip for gas sterilizable package and package |
US4367735A (en) * | 1979-12-31 | 1983-01-11 | Novametrix Medical Systems, Inc. | Nasal cannula |
US4493614A (en) * | 1982-10-08 | 1985-01-15 | Lifecare Services, Inc. | Pump for a portable ventilator |
US4572323A (en) * | 1983-03-28 | 1986-02-25 | Racal Safety Limited | Hearing protectors |
US4641647A (en) * | 1985-02-08 | 1987-02-10 | Sheryl L. Taylor | Device for securing respiratory appliance during respiratory therapy |
US4660555A (en) * | 1984-09-21 | 1987-04-28 | Payton Hugh W | Oxygen delivery and administration system |
USD293613S (en) * | 1985-11-18 | 1988-01-05 | Anesthesia Respiratory Technology, Inc. | Anesthesia and respiratory face mask |
US4802857A (en) * | 1987-11-23 | 1989-02-07 | Laughlin Patrick E | CPR mask |
US4803981A (en) * | 1981-09-22 | 1989-02-14 | Vickery Ian M | Anaesthesia mask |
US4811730A (en) * | 1988-07-18 | 1989-03-14 | Seitz Corporation | CPR face mask and method of using same |
US4899740A (en) * | 1989-01-17 | 1990-02-13 | E. D. Bullard Company | Respirator system for use with a hood or face mask |
US4907584A (en) * | 1988-03-03 | 1990-03-13 | Mcginnis Gerald E | Respiratory mask |
US4915105A (en) * | 1988-10-28 | 1990-04-10 | Lee Tien Chu | Miniature respiratory apparatus |
US4919654A (en) * | 1988-08-03 | 1990-04-24 | Kalt Medical Corporation | IV clamp with membrane |
US4919128A (en) * | 1988-08-26 | 1990-04-24 | University Technologies International Inc. | Nasal adaptor device and seal |
US4989599A (en) * | 1989-01-26 | 1991-02-05 | Puritan-Bennett Corporation | Dual lumen cannula |
US4996983A (en) * | 1989-01-31 | 1991-03-05 | Amrhein Floyd E | Inhaler filtration device with housing supportable by spectacle temple |
US5000173A (en) * | 1987-11-19 | 1991-03-19 | Daniel Zalkin | Respiratory aid device |
US5005571A (en) * | 1988-11-25 | 1991-04-09 | Dietz Henry G | Mouth nose mask for use with an inhalation therapy and/or breathing monitoring apparatus |
USD333015S (en) * | 1991-12-02 | 1993-02-02 | Lifecare International, Inc. | Nasal mask |
US5188101A (en) * | 1991-11-15 | 1993-02-23 | Tumolo Jean S | Premature baby headband for supporting nasal cannulas and oxygen feed tubes |
US5299599A (en) * | 1992-09-17 | 1994-04-05 | Lifecare International, Inc. | Valving arrangement for a negative pressure ventilator |
US5304146A (en) * | 1992-10-23 | 1994-04-19 | Johnson Melissa C | Medical appliance securing device |
US5385141A (en) * | 1992-04-16 | 1995-01-31 | Siebe North, Inc. | Speech diaphragm and exhalation valve |
US5394568A (en) * | 1993-01-28 | 1995-03-07 | Minnesota Mining And Manufacturing Company | Molded head harness |
US5396885A (en) * | 1992-07-31 | 1995-03-14 | Nelson; Joseph M. | Mobile air supply cart having dual tanks and connections allowing simultaneous filling of tank and delivery of air to a user |
US5398676A (en) * | 1993-09-30 | 1995-03-21 | Press; Roman J. | Portable emergency respirator |
US5400776A (en) * | 1993-07-09 | 1995-03-28 | Proprietary Technology, Inc. | Apparatus for maintaining a bend in a medical insufflation tube |
US5488948A (en) * | 1993-09-23 | 1996-02-06 | Intertechnique | Fast donning respiratory protection equipment |
US5509409A (en) * | 1994-09-12 | 1996-04-23 | The Living Trust Of Marjorie F. Weatherholt | Nasal cannula assembly |
US5592938A (en) * | 1992-06-08 | 1997-01-14 | Respironics Inc. | Mask apparatus |
US5623923A (en) * | 1993-06-09 | 1997-04-29 | Intertechnique | Respiratory equipment with comfort adjustment |
US5662101A (en) * | 1995-12-07 | 1997-09-02 | Respironics, Inc. | Respiratory facial mask |
US5704345A (en) * | 1993-11-05 | 1998-01-06 | Resmed Limited | Detection of apnea and obstruction of the airway in the respiratory system |
US5707342A (en) * | 1995-11-24 | 1998-01-13 | Fuji Photo Optical Co., Ltd. | Protector girdle for endoscopic insertion instrument |
US5724965A (en) * | 1995-06-06 | 1998-03-10 | Respironics Inc. | Nasal mask |
US5735272A (en) * | 1997-01-22 | 1998-04-07 | Dillon; Michael M. | Nasal tube holder having a nasal dilator attached thereto |
US5740799A (en) * | 1993-12-21 | 1998-04-21 | Maersk Medical A/S | Device for the supply of oxygen and/or other gases to a patient |
US6019101A (en) * | 1996-10-31 | 2000-02-01 | Sleepnet Corporation | Nasal air mask |
US6026811A (en) * | 1998-03-12 | 2000-02-22 | Settle; Romaine A. | Protective cover for nasal air supply hose |
US6044844A (en) * | 1996-12-02 | 2000-04-04 | Resmed Limited | Mask and harness assembly |
US6193914B1 (en) * | 1995-11-30 | 2001-02-27 | Ubertech Texas, Inc. | Molding thermosetting polymers onto substrates |
US6196223B1 (en) * | 1998-04-10 | 2001-03-06 | William A. Belfer | Strapless respiratory facial mask for customizing to the wearer's face |
US20020005198A1 (en) * | 1996-07-26 | 2002-01-17 | Philip Rodney Kwok | Full-face mask and mask cushion therefor |
US6341606B1 (en) * | 1999-05-19 | 2002-01-29 | Mallinckrodt, Inc. | Disposable respiratory mask with adhesive skin interface |
US6347631B1 (en) * | 1999-11-09 | 2002-02-19 | Mallinckrodt, Inc. | Cantilever device and method for breathing devices and the like |
US20020029780A1 (en) * | 2000-06-22 | 2002-03-14 | Frater Robert H. | Mask with gusset |
US6358279B1 (en) * | 1999-02-22 | 2002-03-19 | University Of Miami | Minicapsulorhexis valve |
US6357441B1 (en) * | 1996-07-26 | 2002-03-19 | Resmed Limited | Nasal mask and mask cushion therefor |
US20030000526A1 (en) * | 2001-03-30 | 2003-01-02 | Fred Gobel | Method for controlling a ventilator, and system therefor |
US20030019495A1 (en) * | 2001-05-18 | 2003-01-30 | Palkon David J. | Mask cushion and method of using same |
US6530373B1 (en) * | 2000-08-04 | 2003-03-11 | Mallinckrodt Inc. | Respirator mask |
US6532961B1 (en) * | 1999-06-18 | 2003-03-18 | Resmed Limited | Forehead support for facial mask |
US6536435B1 (en) * | 1999-02-22 | 2003-03-25 | Cabot Safety Intermediate Corporation | Respirator headpiece and release mechanism |
US20030168063A1 (en) * | 2002-03-08 | 2003-09-11 | Gambone Anthony Joseph | Pressure face mask and nasal mask |
US20030217746A1 (en) * | 2000-06-14 | 2003-11-27 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US6679265B2 (en) * | 2001-10-25 | 2004-01-20 | Worldwide Medical Technologies | Nasal cannula |
US6679257B1 (en) * | 1998-08-13 | 2004-01-20 | Fisher & Paykel Limited | Breathing assistance apparatus |
USD485905S1 (en) * | 2002-08-09 | 2004-01-27 | Resmed Limited | Nasal mask |
US20040025882A1 (en) * | 2000-07-21 | 2004-02-12 | Stefan Madaus | Holding device for a respiratory mask |
US20040025885A1 (en) * | 2002-08-09 | 2004-02-12 | Payne, Charles E. | Headwear for use by a sleep apnea patient |
US20040045551A1 (en) * | 2002-09-06 | 2004-03-11 | Ric Investments, Inc. | Patient interface with forehead support system |
US6710099B2 (en) * | 1999-02-02 | 2004-03-23 | The Procter & Gamble Company | Disposable absorbent articles with improved adhesive for attachment to the skin to facilitate water adhesion stability with low pain level removal |
US20050011523A1 (en) * | 2003-07-18 | 2005-01-20 | Acoba, Llc | Method and system of Individually controlling airway pressure of a patient's nares |
US20050033247A1 (en) * | 2003-08-06 | 2005-02-10 | Thompson Paul S. | Nasal cannula assembly |
US20050028822A1 (en) * | 2003-08-08 | 2005-02-10 | Tiara Medical Systems, Inc. | Sealing nasal cannula |
US20050039757A1 (en) * | 1999-03-13 | 2005-02-24 | Wood Thomas J. | Ventilation interface for sleep apnea therapy |
US6860270B2 (en) * | 2001-08-02 | 2005-03-01 | Joseph A. Sniadach | Double barrel ventilation mask for a patient |
US20050051171A1 (en) * | 2003-09-10 | 2005-03-10 | Booth Jamie Lee | Nose breathing mask for a medical patient; and method |
US20050051176A1 (en) * | 2001-06-18 | 2005-03-10 | Riggins Michael Allen | Nasal and oral cannula apnea detection device |
US20050056286A1 (en) * | 2003-09-17 | 2005-03-17 | Huddart Brett John | Breathable respiratory mask |
US20050061326A1 (en) * | 2002-08-09 | 2005-03-24 | Payne Charles E. | Headwear for use by a sleep apnea patient |
US7011090B2 (en) * | 2001-09-07 | 2006-03-14 | Resmed Limited | Elbow for mask assembly |
US20060060200A1 (en) * | 2004-09-21 | 2006-03-23 | Ric Investments, Llc | Cheek-mounted patient interface |
US7018362B2 (en) * | 2000-08-03 | 2006-03-28 | Venetec International, Inc. | Dialysis catheter anchoring system |
WO2007009182A1 (en) * | 2005-07-19 | 2007-01-25 | Map Medizin-Technologie Gmbh | Respiratory mask and method for manufacturing a respiratory mask |
US20070023044A1 (en) * | 2005-07-29 | 2007-02-01 | Resmed Limited | Life style flow generator and mask system |
US7178525B2 (en) * | 2004-02-06 | 2007-02-20 | Ric Investments, Llc | Patient interface assembly supported under the mandible |
US7191781B2 (en) * | 2003-08-05 | 2007-03-20 | Innomed Technologies, Inc. | Nasal ventilation interface and system |
US20080004573A1 (en) * | 2006-05-19 | 2008-01-03 | Heiner Kaufmann | Adapter for Affixing a Medical Appliance |
US20080006277A1 (en) * | 2004-06-03 | 2008-01-10 | Resmed Limited | Cushion for a Patient Interface |
US7318437B2 (en) * | 2003-02-21 | 2008-01-15 | Resmed Limited | Nasal assembly |
US20080047560A1 (en) * | 2006-07-28 | 2008-02-28 | Resmed Limited | Delivery of respiratory therapy |
US20080060649A1 (en) * | 2006-07-28 | 2008-03-13 | Resmed Limited | Delivery of respiratory therapy |
US7658189B2 (en) * | 2003-12-31 | 2010-02-09 | Resmed Limited | Compact oronasal patient interface |
US20110146684A1 (en) * | 2008-09-12 | 2011-06-23 | Resmed Limited | Foam-based interfacing structure method and apparatus |
Family Cites Families (307)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE185017C (en) | ||||
US443191A (en) | 1890-12-23 | Karl illing | ||
US781516A (en) | 1904-02-03 | 1905-01-31 | George N Guthrie Jr | Respirator and inhaler. |
US1192186A (en) | 1910-09-20 | 1916-07-25 | Samuel Ward Greene | Respirator. |
US1081745A (en) | 1912-05-03 | 1913-12-16 | White S Dental Mfg Co | Nasal inhaler. |
US1229050A (en) | 1917-03-29 | 1917-06-05 | Robert Donald | Respirator. |
US1282527A (en) | 1918-04-13 | 1918-10-22 | Gratien Bidonde | Life-preserver. |
US1362766A (en) | 1919-11-07 | 1920-12-21 | Mcgargill James Martin | Gas-mask |
US1610793A (en) | 1926-04-30 | 1926-12-14 | Kaufman Leo | Respirator |
US1873160A (en) | 1929-02-08 | 1932-08-23 | Harold V Sturtevant | Breathing apparatus |
GB532214A (en) | 1939-08-22 | 1941-01-20 | Hayden Thomas Cattanach | Improvements in and relating to nasal douches |
US2353643A (en) | 1942-07-29 | 1944-07-18 | Arthur H Bulbulian | Head harness for masks |
US2433565A (en) | 1946-06-21 | 1947-12-30 | Korman Alexander | Nose filter |
US3013556A (en) | 1959-08-07 | 1961-12-19 | Jr Ellis A Galleher | Head strap for respiratory masks |
US3670726A (en) | 1969-09-23 | 1972-06-20 | Becton Dickinson Co | Breathing circuit |
US3739774A (en) | 1970-05-21 | 1973-06-19 | Ml Aviation Co Ltd | Respirators |
US3682171A (en) | 1971-03-31 | 1972-08-08 | Baxter Laboratories Inc | Nasal cannula |
US3754552A (en) | 1971-06-08 | 1973-08-28 | Sandoz Ag | Flexible nasal cannula |
DE2342521A1 (en) | 1972-08-29 | 1974-04-25 | Paul Guichard | PORTABLE NASAL DIFFUSER DEVICE FOR PURIFYING AND MODIFYING BREATHING AIR |
US3905361A (en) | 1974-04-24 | 1975-09-16 | Brunswick Mfg Co Inc | Apparatus for sealing the esophagus and providing artificial respiration and evacuating the stomach |
US3972321A (en) | 1975-02-20 | 1976-08-03 | Proctor John S | Upper lip mounted retaining means for medical-surgical tubes |
US4153051A (en) | 1977-07-08 | 1979-05-08 | Shippert Ronald D | Compound splint and kit |
US4156426A (en) | 1977-08-11 | 1979-05-29 | Gold Lawrence W | Head-mounted oxygen-administration device |
US4267845A (en) | 1978-10-05 | 1981-05-19 | Robertson Jr Charles H | Method and apparatus for measuring pulmonary ventilation |
GB2045092B (en) | 1979-04-03 | 1983-05-25 | Warne Surgical Products Ltd | Face masks |
US4273124A (en) | 1979-06-01 | 1981-06-16 | Zimmerman J Earl | Nasal cannula |
DD146688A1 (en) | 1979-10-19 | 1981-02-25 | Gerhard Gruner | DEVICE FOR INFLUENCING THE BREATHING SYSTEM IN NEWBORNS |
US4414973A (en) | 1981-03-10 | 1983-11-15 | U.S.D. Corp. | Respirator face mask |
WO1982003548A1 (en) | 1981-04-24 | 1982-10-28 | Sullivan Colin Edward | Device for treating snoring sickness |
US4422456A (en) | 1981-09-08 | 1983-12-27 | City Of Hope National Medical Center | Nasal cannula structure |
US4449526A (en) | 1981-11-27 | 1984-05-22 | Elam James O | Mask breathing system |
US4406283A (en) | 1982-02-04 | 1983-09-27 | Phillip Bir | Oxygen cannulae for continuous administration of oxygen, and its associated mounting structure and method for mounting same onto the head of a patient |
US4455675A (en) | 1982-04-28 | 1984-06-19 | Bose Corporation | Headphoning |
US4548200A (en) | 1983-04-18 | 1985-10-22 | Baka Manufacturing Company, Inc. | Endotracheal tube holder |
US4549542A (en) | 1983-07-25 | 1985-10-29 | Chien Chao Huei | Multiple-effect respirator |
US4790829A (en) | 1983-08-24 | 1988-12-13 | Russell Bowden | Reusable injection catheter |
US4774946A (en) | 1983-11-28 | 1988-10-04 | Ackrad Laboratories, Inc. | Nasal and endotracheal tube apparatus |
US4676241A (en) | 1984-01-16 | 1987-06-30 | W.L.G. Technology | Ventilation tube swivel |
US4601465A (en) | 1984-03-22 | 1986-07-22 | Roy Jean Yves | Device for stimulating the human respiratory system |
US4630604A (en) | 1985-04-09 | 1986-12-23 | Siebe North, Inc. | Valve assembly for a replaceable filter respirator |
US4838878A (en) | 1985-05-03 | 1989-06-13 | Glenda G. Kalt | Universal clamp |
GB2176404B (en) | 1985-06-13 | 1988-07-27 | Od G Univ Im I I Mechnikova | Respirator |
US4587967A (en) | 1985-07-09 | 1986-05-13 | Lifecare Services, Inc. | Oxygen enriched reciprocating piston respirator |
US4617637A (en) | 1985-07-09 | 1986-10-14 | Lifecare Services, Inc. | Servo control system for a reciprocating piston respirator |
GB8523795D0 (en) | 1985-09-26 | 1985-10-30 | Protector Safety Ltd | Respirator |
US4699139A (en) | 1985-09-30 | 1987-10-13 | Marshall Marie F | Nasal cannula assembly with patient comfort pad |
US4711636A (en) | 1985-11-08 | 1987-12-08 | Bierman Steven F | Catheterization system |
US4671271A (en) | 1985-11-27 | 1987-06-09 | Dolores Bishop | Protective facial mask |
US4706664A (en) | 1986-04-11 | 1987-11-17 | Puritan-Bennett Corporation | Inspiration oxygen saver |
US4713844A (en) | 1986-07-16 | 1987-12-22 | Gentex Corporation | Protective helmet with face mask sealing means |
SE8604244L (en) | 1986-10-06 | 1988-04-11 | Finnveden Holding Ab | HEAT PROTECTION PRESSURE RING |
US4753233A (en) | 1987-02-10 | 1988-06-28 | Advantage Medical | Nasal cannula |
US4967742A (en) | 1987-03-10 | 1990-11-06 | Theodorou Ignatius E | Portable breathing device |
US4960121A (en) | 1987-03-18 | 1990-10-02 | Figgie International, Inc. | Half-face mask assembly |
US4945907A (en) | 1987-04-13 | 1990-08-07 | New England Thermoplastics, Inc. | Face mask |
EP0288937A3 (en) | 1987-04-30 | 1989-09-20 | Cavan Corporation | Disposable breathing mask |
DE3719009A1 (en) | 1987-06-06 | 1988-12-22 | Ernst Dipl Ing Hoermann | Ventilation mask with adjustable mouthpiece and nose moulding |
US5199424A (en) | 1987-06-26 | 1993-04-06 | Sullivan Colin E | Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled |
US4971051A (en) | 1987-07-13 | 1990-11-20 | Toffolon Norman R | Pneumatic cushion and seal |
US4767411A (en) | 1987-07-14 | 1988-08-30 | Edmunds L Henry | Protective catheter sleeve |
US4782832A (en) | 1987-07-30 | 1988-11-08 | Puritan-Bennett Corporation | Nasal puff with adjustable sealing means |
CH671702A5 (en) | 1987-08-04 | 1989-09-29 | Morgan Tech Ltd | |
US4976698A (en) | 1987-10-23 | 1990-12-11 | Stokley Manuel H | Intravenous catheter and tubing stabilization device |
WO1989009043A1 (en) | 1988-03-23 | 1989-10-05 | Christa Ursula Palfy | Nasal tube holder |
US5335656A (en) | 1988-04-15 | 1994-08-09 | Salter Laboratories | Method and apparatus for inhalation of treating gas and sampling of exhaled gas for quantitative analysis |
US5462528A (en) | 1988-07-01 | 1995-10-31 | Roewer; Norbert | Stomach tube |
DE3823382C1 (en) | 1988-07-09 | 1990-01-11 | Draegerwerk Ag, 2400 Luebeck, De | |
IL87156A (en) | 1988-07-20 | 1993-05-13 | Eagle | Forced-ventilation filtration unit particularly for respiration device |
US4966590A (en) | 1988-12-13 | 1990-10-30 | Kalt Medical Corporation | IV Clamp with membrane dressing |
US5042478A (en) | 1988-08-26 | 1991-08-27 | University Technologies International, Inc. | Method of ventilation using nares seal |
US6406468B1 (en) | 1988-12-20 | 2002-06-18 | Kimberly-Clark Worldwide, Inc. | Mechanical fastening tapes and method for their construction |
US5261893A (en) | 1989-04-03 | 1993-11-16 | Zamierowski David S | Fastening system and method |
US4969880A (en) | 1989-04-03 | 1990-11-13 | Zamierowski David S | Wound dressing and treatment method |
US5023955A (en) | 1989-04-13 | 1991-06-18 | Gentex Corporation | Impact-absorbing sound-attenuating earcup |
WO1990011791A1 (en) | 1989-04-13 | 1990-10-18 | Salter Laboratories | Demand oxygen system |
US5265595A (en) | 1989-06-19 | 1993-11-30 | Hans Rudolph, Inc. | Mask for breath analysis |
US5020163A (en) | 1989-06-29 | 1991-06-04 | Gentex Corporation | Earseal for sound-attenuating earcup assembly |
DE3927038A1 (en) | 1989-08-16 | 1991-02-21 | Juergen Hoefer | Oxygen mask measuring blood oxygen level - has sensor on lever arm for placing on forehead of wearer |
DK162426C (en) | 1989-09-04 | 1992-03-23 | Ambu Int As | PROTECTION AGENT FOR USE BY LUNGE VENTILATION BY ORAL ORAL OR Mouth-to-nose method |
CA2019533A1 (en) | 1989-11-09 | 1991-05-09 | William H. Hollister | Face mask and face mask components |
US5074297A (en) | 1989-12-19 | 1991-12-24 | The General Hospital Corporation | Self-sealing mask for delivering intermittent positive pressure ventilation |
US5046491A (en) | 1990-03-27 | 1991-09-10 | Derrick Steven J | Apparatus and method for respired gas collection and analysis |
US5243971A (en) | 1990-05-21 | 1993-09-14 | The University Of Sydney | Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours |
ES2086547T3 (en) | 1990-06-26 | 1996-07-01 | Cam Lock Uk Ltd | PERFECTED RESPIRATORY EQUIPMENT FOR AIRCRAFT CREW. |
US5207665A (en) | 1990-07-06 | 1993-05-04 | Mcneil-Ppc, Inc. | Absorbent product having mechanical attachment mechanism |
US5025805A (en) | 1990-07-11 | 1991-06-25 | Betty Nutter | Nasal cannula assembly |
US5121745A (en) | 1990-07-23 | 1992-06-16 | Israel Michael B | Self-inflatable rescue mask |
US5113857A (en) | 1990-08-27 | 1992-05-19 | Stair Dickerman | Breathing gas delivery system and holding clip member therefor |
FR2673380B1 (en) | 1991-02-28 | 1993-06-18 | Intertechnique Sa | PERSONAL RESPIRATORY PROTECTION EQUIPMENT. |
CA2068925A1 (en) | 1991-05-21 | 1992-11-22 | Amad Tayebi | Breathing mask |
FR2676650B1 (en) | 1991-05-22 | 1993-08-13 | Lemitouard Anne | FACIAL RESPIRATORY MASK. |
WO1992020392A1 (en) | 1991-05-24 | 1992-11-26 | Calor Air Separation Limited | Nasal cannula |
US5138722A (en) | 1991-07-02 | 1992-08-18 | David Clark Company Inc. | Headset ear seal |
US5243709A (en) | 1991-09-04 | 1993-09-14 | Natus Medical, Inc. | Acoustically sealing earmuff for an infant |
US6086118A (en) | 1991-09-10 | 2000-07-11 | Bundy Corporation | Quick connect tubing connector |
FR2682043A1 (en) | 1991-10-03 | 1993-04-09 | Intertechnique Sa | RESPIRATORY EQUIPMENT WITH ORO-NASAL MASK. |
US5954049A (en) | 1991-10-15 | 1999-09-21 | Trudell Medical Limited | Equine mask with MDI adapter |
US5477852A (en) | 1991-10-29 | 1995-12-26 | Airways Ltd., Inc. | Nasal positive airway pressure apparatus and method |
US5269296A (en) | 1991-10-29 | 1993-12-14 | Landis Robert M | Nasal continuous positive airway pressure apparatus and method |
EP1149603A3 (en) | 1991-12-20 | 2003-10-22 | Resmed Limited | Ventilator for continuous positive airway pressure breathing (CPAP) |
US5271391A (en) | 1991-12-20 | 1993-12-21 | Linda Graves | Apparatus for delivering a continuous positive airway pressure to an infant |
US5372130A (en) | 1992-02-26 | 1994-12-13 | Djs&T Limited Partnership | Face mask assembly and method having a fan and replaceable filter |
US5355893A (en) | 1992-04-06 | 1994-10-18 | Mick Peter R | Vital signs monitor |
GB2267648A (en) | 1992-06-12 | 1993-12-15 | Mel | A face mask incorporating breathing equipment for aircrew |
US5220699A (en) | 1992-07-27 | 1993-06-22 | Farris R David | Surgical face mask support apparatus and method |
US5267557A (en) | 1992-08-17 | 1993-12-07 | Her Mou Lin | Nose mask with a filtering device |
US5263939A (en) | 1992-10-09 | 1993-11-23 | Surgin Surgical Instrumentation, Inc. | Retainer for laparoscopic cannula |
US5372391A (en) | 1993-02-22 | 1994-12-13 | The United States Of America As Represented By The United States Department Of Energy | Internal pipe attachment mechanism |
US5372390A (en) | 1993-02-24 | 1994-12-13 | Senior Engineering Investments, B.V. | Coupling system for relatively thick-walled tubes |
US5364367A (en) | 1993-04-30 | 1994-11-15 | Minnesota Mining And Manufacturing Company | Cannula anchor |
US5372388A (en) | 1993-04-30 | 1994-12-13 | American Pipe & Plastics, Inc. | Integral multi-duct conduit section |
US5560354A (en) | 1993-06-18 | 1996-10-01 | Rescare Limited | Facial masks for assisted respiration or CPAP |
US5372389A (en) | 1993-06-22 | 1994-12-13 | Graco Inc. | Nozzle swivel joint |
US5437267A (en) | 1993-08-03 | 1995-08-01 | Weinstein; Allan | Device for delivering aerosol to the nasal membranes and method of use |
US5441046A (en) | 1993-09-29 | 1995-08-15 | Respironics, Inc. | Quick release mechanism for nasal and/or oral gas delivery mask |
US5375593A (en) | 1994-02-10 | 1994-12-27 | Press; John R. | Oxygenating pacifier |
US5513634A (en) | 1994-05-06 | 1996-05-07 | Chek-Med Systems, Inc. | Combination integral bite block airway and nasal cannula |
FR2720280B1 (en) | 1994-05-27 | 1996-08-09 | Mitouard Anne Le | Respiratory mask. |
US5655527A (en) | 1994-06-03 | 1997-08-12 | Respironics Inc. | Respiratory mask with floating seal responsive to pressurized gas |
US5975079A (en) | 1994-07-25 | 1999-11-02 | Hellings; Deborah | Anesthesia and respiratory face mask |
US5906203A (en) | 1994-08-01 | 1999-05-25 | Safety Equipment Sweden Ab | Breathing apparatus |
US5425359A (en) | 1994-08-29 | 1995-06-20 | Liou; Nan-Tien | Nose plug structure with filter |
US5653228A (en) | 1994-10-25 | 1997-08-05 | Byrd; Timothy N. | Medical tube holding device and associated securing strap |
US5533506A (en) | 1995-01-13 | 1996-07-09 | Medlife, Inc. | Nasal tube assembly |
WO1996022752A1 (en) | 1995-01-23 | 1996-08-01 | Schwartz Alan N | Goggles with pliable and resilient sealing pad |
US6152137A (en) | 1995-01-23 | 2000-11-28 | Schwartz; Alan N. | Pliable and resilient sealing pad |
US5513635A (en) | 1995-02-02 | 1996-05-07 | Bedi; Shan | Nasal cannula anchoring apparatus |
US5538000A (en) | 1995-02-06 | 1996-07-23 | Hans Rudolph, Inc. | Airflow delivery system |
FR2731624B1 (en) | 1995-03-16 | 1997-09-26 | Assist Publ Hopitaux De Paris | FACE VENTILATION MASK, PART AND METHOD FOR THE PRODUCTION THEREOF |
US5526806A (en) | 1995-04-04 | 1996-06-18 | Sansoni; Jean | Non-invasive nasal cannula |
US6082360A (en) | 1995-05-04 | 2000-07-04 | Hans Rudolph, Inc. | Mask with gel seal |
DE19529322C1 (en) | 1995-08-09 | 1997-03-13 | Gottfried Dr Med Feuchtgruber | Packed respiratory mask |
US5647357A (en) | 1995-09-08 | 1997-07-15 | Respironics, Inc. | Respiratory mask facial seal |
US6397847B1 (en) | 1995-09-08 | 2002-06-04 | Respironics, Inc. | Customizable seal, mask with customizable seal and method of using such a seal |
US6241930B1 (en) | 1995-11-30 | 2001-06-05 | Ubertech Texas, Inc. | Method of constructing a garment with a graphical design thereon |
EP0776679B1 (en) | 1995-12-01 | 2002-04-10 | Ikari Corporation | Mask maintaining warmth in nasal area |
US5570684A (en) | 1995-12-29 | 1996-11-05 | Behr; R. Douglas | Heating and humidifying respiratory mask |
AUPO247496A0 (en) | 1996-09-23 | 1996-10-17 | Resmed Limited | Assisted ventilation to match patient respiratory need |
US5682881A (en) | 1996-10-21 | 1997-11-04 | Winthrop; Neil | Nasal CPAP/Cannula and securement apparatus |
US6139787A (en) | 1996-10-24 | 2000-10-31 | Ubertech Texas, Inc. | Method for applying molded silicone design elements onto substrates |
US5752511A (en) | 1996-11-22 | 1998-05-19 | Simmons; Carl J. | Universal medical tube retainer and nasal wall tissue dilator |
EP0946211B1 (en) | 1996-11-25 | 2003-01-22 | Kimberly-Clark Worldwide, Inc. | Adhesive composition comprising a lower-alkenyl substituted polysiloxane |
US5807341A (en) | 1996-12-11 | 1998-09-15 | Team Medical Llc | Medical catheter dressing device |
AUPO425696A0 (en) | 1996-12-18 | 1997-01-23 | Resmed Limited | A device for preventing or reducing the passage of air through the mouth |
US6211263B1 (en) | 1996-12-23 | 2001-04-03 | The Procter & Gamble Company | Adhesive for secure topical attachment to the skin and comfortable removal |
US5921239A (en) | 1997-01-07 | 1999-07-13 | Sunrise Medical Hhg Inc. | Face mask for patient breathing |
US6412487B1 (en) | 1997-01-31 | 2002-07-02 | Resmed Limited | Mask cushion and frame assembly |
DE19703526A1 (en) | 1997-01-31 | 1998-08-06 | Rainer Berger | Appliance for delivery of a substance into inhaled air |
AUPP855099A0 (en) | 1999-02-09 | 1999-03-04 | Resmed Limited | Gas delivery connection assembly |
AUPO504597A0 (en) | 1997-02-10 | 1997-03-06 | Resmed Limited | A mask and a vent assembly therefor |
US5794619A (en) | 1997-02-18 | 1998-08-18 | Edelman; Robert | Nasal cannula mounted solely by frictional engagement with the columella |
DE29723101U1 (en) | 1997-04-05 | 1998-05-28 | Weinmann G Geraete Med | Device for coupling to ventilation masks |
US6439234B1 (en) | 1998-04-03 | 2002-08-27 | Salter Labs | Nasal cannula |
GB2325668B (en) | 1997-05-30 | 1999-12-01 | Bristol Myers Squibb Co | Adhesive composition or structure |
US5842469A (en) | 1997-07-03 | 1998-12-01 | Rapp; John D. | Method for extending the useful life of a nasal dilator |
US6119694A (en) | 1997-07-24 | 2000-09-19 | Respironics Georgia, Inc. | Nasal mask and headgear |
US6432098B1 (en) | 1997-09-04 | 2002-08-13 | The Procter & Gamble Company | Absorbent article fastening device |
US5991979A (en) | 1997-09-29 | 1999-11-30 | Alpine Partners | Skin mounted device holder |
AU1171299A (en) | 1997-11-14 | 1999-06-07 | Louis Michael Crowe | A seal for a respiratory mask, and a respiratory mask |
US6119693A (en) | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
DE19807961C2 (en) | 1998-02-25 | 1999-12-02 | Map Gmbh | Respiratory mask |
GB9805619D0 (en) | 1998-03-18 | 1998-05-13 | Noise Cancellation Tech | Cushioned earphones |
US5918598A (en) | 1998-04-10 | 1999-07-06 | Belfer; William A. | Strapless respiratory facial mask for customizing to the wearer's face |
FR2778575B1 (en) | 1998-05-12 | 2000-07-28 | Intertechnique Sa | RESPIRATORY PROTECTION EQUIPMENT WITH FAST SETUP |
AUPP366398A0 (en) | 1998-05-22 | 1998-06-18 | Resmed Limited | Ventilatory assistance for treatment of cardiac failure and cheyne-stokes breathing |
US6419660B1 (en) | 1998-05-29 | 2002-07-16 | Ronald D. Russo | Medical tube holder |
US6328038B1 (en) | 1998-07-14 | 2001-12-11 | Fred Bruce Kessler | Nasal cannula retainer |
US20020157673A1 (en) | 1998-07-14 | 2002-10-31 | Kessler Fred B. | Nasal cannula retainer |
AU5180999A (en) | 1998-07-31 | 2000-02-21 | First Water Limited | Bioadhesive compositions comprising hydrophobic polymers |
US6820617B2 (en) | 1998-08-13 | 2004-11-23 | Fisher & Paykel Limited | Breathing assistance apparatus |
US6637434B2 (en) | 1998-10-30 | 2003-10-28 | Linda J. Noble | Nasal gas delivery system and method for use thereof |
US6561193B1 (en) | 1998-10-30 | 2003-05-13 | Linda J. Noble | Nasal gas delivery apparatus and a nasal vestibular airway |
AUPP794598A0 (en) | 1998-12-24 | 1999-01-28 | Resmed Limited | An anti-asphyxia valve |
AUPP812199A0 (en) | 1999-01-12 | 1999-02-04 | Resmed Limited | Headgear |
US6607516B2 (en) | 1999-02-02 | 2003-08-19 | The Procter & Gamble Company | Disposable human waste management devices with improved adhesive flange to facilitate adhesion in oily conditions |
WO2000050121A1 (en) | 1999-02-25 | 2000-08-31 | Respironics, Inc. | Adhesive nasal mask assembly, system and method of using same |
US6258066B1 (en) | 1999-03-08 | 2001-07-10 | Rex W. Urich | Intravenous catheter stabilizing device |
US6834650B1 (en) | 1999-03-12 | 2004-12-28 | Mallinckrodt, Inc. | Face or nose mask for non-invasive ventilation of patients in general |
US6595215B2 (en) | 2000-03-13 | 2003-07-22 | Innomed Technologies, Inc. | Ventilation interface for sleep apnea therapy |
US6478026B1 (en) | 1999-03-13 | 2002-11-12 | Thomas J. Wood | Nasal ventilation interface |
US6374826B1 (en) | 1999-03-18 | 2002-04-23 | Resmed Limited | Mask and headgear connector |
US6295366B1 (en) | 1999-03-24 | 2001-09-25 | Flightcom Corporation | Aircraft headset |
US6412488B1 (en) | 1999-05-12 | 2002-07-02 | Respironics, Inc. | Low contact nasal mask and system using same |
US6482178B1 (en) | 1999-05-21 | 2002-11-19 | Cook Urological Incorporated | Localization device with anchoring barbs |
EP1198266A1 (en) | 1999-05-28 | 2002-04-24 | Euromedico Ltd. | Gas-supplying device |
US6423036B1 (en) | 1999-06-07 | 2002-07-23 | Gibbons Surgical Corporation | Cannula anchoring port |
US7219669B1 (en) | 1999-06-08 | 2007-05-22 | Sleepnet Corporation | Nose mask |
US6631718B1 (en) | 1999-06-08 | 2003-10-14 | Sleepnet Corporation | Air mask with seal |
US6357440B1 (en) | 1999-06-16 | 2002-03-19 | Mallinckrodt Inc. | Pliable respiratory mask |
US6644315B2 (en) | 1999-06-18 | 2003-11-11 | Saeed Ziaee | Nasal mask |
US6581601B2 (en) | 1999-06-18 | 2003-06-24 | Saeed Ziaee | Nasal mask with balloon exhalation valve |
US6467483B1 (en) | 1999-07-28 | 2002-10-22 | Respironics, Inc. | Respiratory mask |
CA2281457A1 (en) | 1999-08-26 | 2001-02-26 | Alfred Ernest Bassett | Securing device for intraveneous cannula or catheter |
DE19944242A1 (en) | 1999-09-15 | 2001-03-22 | Dentallabor Negurescu Gmbh | Medical breathing mask with nose and mouth pieces joins these via orifice and flexible connector tube to breathing apparatus. |
US6434796B1 (en) | 1999-10-20 | 2002-08-20 | Kathryn M. Speirs | Oxygen delivery cannula retainer, cannula with retainers assembly, and method for retaining cannulas |
DE19954517C2 (en) | 1999-11-12 | 2002-01-31 | Map Gmbh | Breathing mask and method of making the same |
EP1118346A3 (en) | 2000-01-21 | 2003-06-18 | MPV-Truma Gesellschaft Für Medizintechnische Produkte mbH | Nasal breathing mask and mask cushion for a nasal breathing mask |
DE10002571A1 (en) | 2000-01-21 | 2001-07-26 | Mpv Truma Ges Fuer Medizintech | Breathing mask is of a flexible material with a spaced sealing lip at the inner support wall to give a comfortable and sealed fit at the face when in place around the nose |
FR2804330B1 (en) | 2000-02-01 | 2003-01-10 | Georges Boussignac | RESPIRATORY ASSISTANCE APPARATUS |
WO2001062326A1 (en) | 2000-02-25 | 2001-08-30 | MAP Medizintechnik für Arzt und Patient GmbH & Co. KG | Sealing lip device for a respiratory mask, respiratory mask and a method and a mould for producing the same |
WO2001066174A1 (en) | 2000-03-03 | 2001-09-13 | The Penn State Research Foundation | Nasal oral respiratory interface |
US6572588B1 (en) | 2000-03-10 | 2003-06-03 | Venetec International, Inc. | Medical anchoring system |
US6571798B1 (en) | 2000-04-05 | 2003-06-03 | W. Keith Thornton | Device for improving breathing and method of constructing same |
WO2006069415A1 (en) | 2004-12-30 | 2006-07-06 | Resmed Limited | Respiratory mask having gas washout vent and gas washout vent assembly for respiratory mask |
US6581594B1 (en) | 2000-05-15 | 2003-06-24 | Resmed Limited | Respiratory mask having gas washout vent and gas washout vent for respiratory mask |
FR2809317B1 (en) | 2000-05-26 | 2002-08-16 | Taema | NASAL RESPIRATORY MASK WITH ADJUSTABLE THERMISTANCE INTENDED FOR THE TREATMENT OF RESPIRATORY SLEEP DISORDERS |
US6701926B2 (en) | 2000-06-14 | 2004-03-09 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
AUPQ821500A0 (en) | 2000-06-19 | 2000-07-13 | Australian Centre For Advanced Medical Technology Ltd | Mask |
US6669712B1 (en) | 2000-06-30 | 2003-12-30 | Norman Cardoso | Nasal oxygen cannula with supply tube management |
GB0019831D0 (en) | 2000-08-12 | 2000-09-27 | Smiths Industries Plc | Medico-Surgical apparatus |
US6561188B1 (en) | 2000-08-21 | 2003-05-13 | Ellis Alan D | Nasal breathing apparatus and methods |
US6584975B1 (en) | 2000-08-28 | 2003-07-01 | Eldridge Taylor | Respirator mask for filtering breathed air |
US20020069872A1 (en) | 2000-09-22 | 2002-06-13 | Gradon Lewis George | Mouthpiece |
US6431172B1 (en) | 2000-10-20 | 2002-08-13 | Mallinckrodt Inc. | Nasal cannula with inflatable plenum chamber |
KR200221064Y1 (en) | 2000-11-10 | 2001-04-16 | 이근우 | Mask for prevention steaming up |
US6595214B1 (en) | 2000-11-22 | 2003-07-22 | Mpv-Truma Gesellschaft Fur | Nasal respiration mask |
AUPR193300A0 (en) | 2000-12-07 | 2001-01-04 | Resmed Limited | Mask assembly |
US7152601B2 (en) | 2000-12-18 | 2006-12-26 | Mohamed Ali Barakat | Strapless respiratory face mask |
US6448303B1 (en) | 2000-12-29 | 2002-09-10 | National Starch And Chemical Investment Holding Corporation | Hot melt adhesives for dermal application |
US6579267B2 (en) | 2001-01-05 | 2003-06-17 | Applied Diabetes Research, Inc. | Pivoting joint infusion assembly |
DE10105383C2 (en) | 2001-02-06 | 2003-06-05 | Heptec Gmbh | Anti-snoring device |
US20020143296A1 (en) | 2001-03-29 | 2002-10-03 | Russo Ronald D. | Medical tube holder |
GB0114368D0 (en) | 2001-06-07 | 2001-08-08 | Smiths Industries Plc | Face masks |
US6766817B2 (en) | 2001-07-25 | 2004-07-27 | Tubarc Technologies, Llc | Fluid conduction utilizing a reversible unsaturated siphon with tubarc porosity action |
US6817362B2 (en) | 2001-08-10 | 2004-11-16 | North Safety Products Inc. | Respirator |
US7753050B2 (en) | 2001-09-07 | 2010-07-13 | Resmed Limited | Headgear connection assembly for a respiratory mask assembly |
US6823869B2 (en) | 2001-09-07 | 2004-11-30 | Resmed Limited | Mask assembly |
EP1302212A3 (en) | 2001-10-10 | 2004-01-21 | Fisher & Paykel Healthcare Limited | Forehead support for a facial mask |
DE10201682A1 (en) | 2002-01-17 | 2003-07-31 | Map Medizin Technologie Gmbh | The breathing mask arrangement |
US6805117B1 (en) | 2001-11-07 | 2004-10-19 | Ric Investments, Llc | Universal fitting headgear |
US7052127B2 (en) | 2002-01-23 | 2006-05-30 | Warnaco Swimwear Products Inc. | One-piece integrally-formed goggle |
GB0204161D0 (en) | 2002-02-22 | 2002-04-10 | Smiths Group Plc | Mask apparatus |
EP1342484B1 (en) | 2002-03-06 | 2007-06-13 | The BOC Group plc | Improvements in nasal cannulae |
US7743767B2 (en) | 2002-04-23 | 2010-06-29 | Resmed Limited | Ergonomic and adjustable respiratory mask assembly with frame |
US8042542B2 (en) | 2002-04-23 | 2011-10-25 | Resmed Limited | Respiratory mask assembly with magnetic coupling to headgear assembly |
AUPS192602A0 (en) | 2002-04-23 | 2002-05-30 | Resmed Limited | Nasal mask |
US8997742B2 (en) | 2002-04-23 | 2015-04-07 | Resmed Limited | Ergonomic and adjustable respiratory mask assembly with cushion |
NO316496B1 (en) | 2002-06-10 | 2004-02-02 | Laerdal Medical As | Cover for patient mask |
EP2308537A1 (en) | 2002-06-14 | 2011-04-13 | MAP Medizin-Technologie GmbH | Mask cushioning for a respiratory mask |
US6789543B2 (en) | 2002-07-02 | 2004-09-14 | James L. Cannon | Assisted breathing device and method of wearing same |
US7146976B2 (en) | 2002-08-06 | 2006-12-12 | Mckown Joseph R | Nasal cannula retainer |
US7814911B2 (en) | 2004-10-15 | 2010-10-19 | Aeiomed, Inc. | Nares seal |
EP1534143B1 (en) | 2002-08-23 | 2007-05-30 | Organ Recovery Systems | Connectors, particularly for transplant organs |
US6766800B2 (en) | 2002-08-30 | 2004-07-27 | Sensormedics Corporation | Pressure regulating valve for use in continuous positive airway pressure devices |
WO2004020024A1 (en) | 2002-08-30 | 2004-03-11 | Inrad, Inc. | Localizing needle with fluid delivery |
EP1545674B1 (en) | 2002-09-06 | 2015-04-08 | ResMed Limited | Cushion for a respiratory mask assembly |
AU2003275762A1 (en) | 2002-11-06 | 2004-06-07 | Resmed Limited | Mask and components thereof |
US7285255B2 (en) | 2002-12-10 | 2007-10-23 | Ecolab Inc. | Deodorizing and sanitizing employing a wicking device |
US20040127856A1 (en) | 2002-12-27 | 2004-07-01 | Carolyn Johnson | Catheter and delivery end |
US20040211428A1 (en) | 2003-02-28 | 2004-10-28 | Sunrise Medical Hhg Inc. | Nasal mask cushion |
US7219670B2 (en) | 2003-02-28 | 2007-05-22 | Sunrise Medical Hhg Inc. | Method for securing a nasal mask |
SE0301405L (en) | 2003-05-14 | 2004-11-15 | Atos Medical Ab | Device for holding a tracheal cannula |
US7493902B2 (en) | 2003-05-30 | 2009-02-24 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US7207328B1 (en) | 2003-07-29 | 2007-04-24 | Armin Altemus | Emergency air delivery system for patients |
DE10338169A1 (en) | 2003-08-20 | 2005-03-10 | Weinmann G Geraete Med | Ventilation mask with hood |
USD552733S1 (en) | 2003-10-06 | 2007-10-09 | Tyco Healthcare Group Lp | Balloon anchored cannula |
US7699808B2 (en) | 2003-11-10 | 2010-04-20 | Smiths Medical Asd, Inc. | Subcutaneous infusion device and method |
DE10352607A1 (en) * | 2003-11-11 | 2005-06-02 | Map Medizin-Technologie Gmbh | Headband device for an oxygen mask has a flexible band part with upper and lower band sections for transmitting mask-retaining forces required for applying an oxygen mask |
ATE546182T1 (en) * | 2003-12-08 | 2012-03-15 | Fisher & Paykel Healthcare Ltd | DEVICE TO SUPPORT BREATHING |
DE102004001534A1 (en) | 2004-01-10 | 2005-08-04 | DRäGER AEROSPACE GMBH | Passenger Oxygen Mask |
US7856982B2 (en) | 2004-03-11 | 2010-12-28 | Ric Investments, Llc | Patient interface device |
NZ550348A (en) | 2004-04-09 | 2011-02-25 | Resmed Ltd | Nasal assembly with vent and baffle |
WO2005099801A1 (en) | 2004-04-15 | 2005-10-27 | Resmed Limited | Positive-air-pressure machine conduit |
JP2007538356A (en) | 2004-05-17 | 2007-12-27 | レスメド リミテッド | Posture sensing lighting system |
US7243723B2 (en) | 2004-06-18 | 2007-07-17 | Halliburton Energy Services, Inc. | System and method for fracturing and gravel packing a borehole |
DE102004030068B3 (en) | 2004-06-23 | 2005-06-23 | Drägerwerk AG | Respiration mask for continuous positive airway pressure respiration device with respiration gases supplied via bandage attaching mask to head of patient |
US8967146B2 (en) | 2004-07-23 | 2015-03-03 | Resmed Limited | Respiratory mask having gas washout vent and method for making the mask |
US7470256B2 (en) | 2004-10-29 | 2008-12-30 | Merit Medical Systems, Inc., | Self-suturing anchor device for a catheter |
US7520869B2 (en) | 2004-10-29 | 2009-04-21 | Merit Medical Systems, Inc. | Self-suturing anchor device for a catheter |
DE102004055433B3 (en) | 2004-11-17 | 2005-11-17 | Drägerwerk AG | Breathing mask with integrated suction area |
US8042539B2 (en) | 2004-12-10 | 2011-10-25 | Respcare, Inc. | Hybrid ventilation mask with nasal interface and method for configuring such a mask |
US8261745B2 (en) | 2004-12-10 | 2012-09-11 | Respcare, Inc. | Ventilation interface |
US7237551B2 (en) | 2004-12-22 | 2007-07-03 | Ric Investments, Llc. | Cushion for a patient interface |
CN101155610B (en) | 2005-01-12 | 2012-01-04 | 雷斯梅德有限公司 | Cushion for patient interface |
WO2006101797A2 (en) | 2005-03-15 | 2006-09-28 | Medical Device Group, Inc. | Adjustable bite block for respirator |
WO2006099658A1 (en) | 2005-03-22 | 2006-09-28 | Resmed Limited | Nasal dilator |
US7152599B2 (en) | 2005-05-20 | 2006-12-26 | Thomas Wendell A | Nasal mask for delivering gas |
CN104645476B (en) | 2005-06-06 | 2017-08-22 | 瑞思迈有限公司 | Mask system |
USD550836S1 (en) | 2005-07-06 | 2007-09-11 | Respcare, Inc. | Ventilation interface |
AU2005100738B4 (en) | 2005-09-08 | 2005-12-15 | Respironics, Inc. | Patient interface device |
NZ591992A (en) | 2005-10-14 | 2012-11-30 | Resmed Ltd | Breathing mask with cushion attached to frame via lip of cushion engaging within recess between frame outer and inner walls, and guided in via angled protrusion of frame inner wall |
US8701668B2 (en) | 2005-10-14 | 2014-04-22 | Resmed Limited | Nasal assembly |
US20090126739A1 (en) | 2005-10-25 | 2009-05-21 | Resmed Limited | Interchangeable Mask Assembly |
WO2007053878A1 (en) | 2005-11-08 | 2007-05-18 | Resmed Ltd | Nasal assembly |
US7640934B2 (en) | 2005-12-02 | 2010-01-05 | Carefusion 2200, Inc. | Infant nasal interface prong device |
US8701667B1 (en) | 2006-05-05 | 2014-04-22 | Ric Investments, Llc | Patient interface device with limited support area on the face |
US8887725B2 (en) | 2006-05-10 | 2014-11-18 | Respcare, Inc. | Ventilation interface |
US20070282272A1 (en) | 2006-05-30 | 2007-12-06 | Bannon Chad D | Device for guiding medical tubing |
WO2008040050A1 (en) | 2006-10-02 | 2008-04-10 | Resmed Ltd | Cushion for mask system |
AT503882A2 (en) | 2006-06-16 | 2008-01-15 | Stadler Johann | FIXATION OF A VEIN CONVERTING CANNING |
AU2007259483B2 (en) | 2006-06-16 | 2012-11-29 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US8500698B2 (en) | 2006-09-08 | 2013-08-06 | Zefon International, Inc. | Catheter anchor |
US20080110469A1 (en) | 2006-11-13 | 2008-05-15 | Stanley Weinberg | Strapless flexible tribo-charged respiratory facial mask and method |
DE202007019572U1 (en) * | 2006-12-06 | 2013-12-02 | Weinmann Geräte für Medizin GmbH + Co. KG | Respiratory mask with a filling body |
JP5911189B2 (en) | 2006-12-15 | 2016-04-27 | レスメド・リミテッドResMed Limited | Respiratory therapy |
US20080200880A1 (en) | 2007-02-15 | 2008-08-21 | Kurt Kyvik | Catheter anchor |
NZ615209A (en) * | 2007-03-02 | 2015-07-31 | Resmed Ltd | Respiratory mask |
NZ589685A (en) * | 2007-04-19 | 2012-06-29 | Resmed Ltd | Cushion for patient breathing interface with variable density foam supported membrane |
US20080302365A1 (en) * | 2007-06-08 | 2008-12-11 | Cohen Eric D | Respiratory Mask |
US9782553B2 (en) | 2007-07-13 | 2017-10-10 | Resmed Limited | Patient interface and non-invasive positive pressure ventilating method |
EP2452716B1 (en) | 2007-07-30 | 2017-06-21 | ResMed Ltd. | Patient interface |
WO2009062265A1 (en) * | 2007-11-15 | 2009-05-22 | Resmed Ltd | A cushioning structure |
WO2009108994A1 (en) | 2008-03-04 | 2009-09-11 | Resmed Ltd | A foam respiratory mask |
AU2009221639B2 (en) | 2008-03-04 | 2014-11-20 | ResMed Pty Ltd | An interface including a foam cushioning element |
CN105126222A (en) | 2008-06-04 | 2015-12-09 | 瑞思迈有限公司 | Patient interface system |
EP2213324B1 (en) | 2009-01-30 | 2016-07-27 | ResMed R&D Germany GmbH | Patient interface structure and method/tool for manufacturing same |
EP2445563A4 (en) | 2009-06-24 | 2016-03-23 | Resmed Ltd | Adjustable mask system and related methods |
-
2009
- 2009-01-30 EP EP09001344.2A patent/EP2213324B1/en not_active Not-in-force
-
2010
- 2010-01-29 US US12/656,466 patent/US20100192955A1/en not_active Abandoned
-
2018
- 2018-04-04 US US15/945,532 patent/US10786642B2/en active Active
Patent Citations (105)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1125542A (en) * | 1914-03-11 | 1915-01-19 | Aubrey Humphries | Apparatus for use in administering anesthetics. |
US1445010A (en) * | 1920-11-15 | 1923-02-13 | William S Feinberg | Breathing apparatus for swimmers |
US2415846A (en) * | 1944-10-23 | 1947-02-18 | Randall Francis Eugene | Oronasal mask |
US2625155A (en) * | 1950-12-11 | 1953-01-13 | Arthur E Engelder | Face mask |
US2706983A (en) * | 1951-09-15 | 1955-04-26 | Willson Products Inc | Flexible construction in respirator mask facepiece |
US2931356A (en) * | 1958-08-25 | 1960-04-05 | Puritan Compressed Gas Corp | Oxygen mask having detachable face seal cushion |
US3938614A (en) * | 1972-06-20 | 1976-02-17 | Aktiebolaget Lennartsfors Mekaniska Verkstad | Cushion member for sound-proof sealing |
US3861385A (en) * | 1972-08-25 | 1975-01-21 | Edward Carden | Anaesthetist{3 s ventilation |
US3848925A (en) * | 1972-11-02 | 1974-11-19 | Coach & Car Equip Corp | Transit vehicle seat |
US4006744A (en) * | 1974-06-24 | 1977-02-08 | Abbott Laboratories | Locking cannula mount |
US4142527A (en) * | 1977-02-07 | 1979-03-06 | Garcia Nelson C | Endotracheal tube holder |
US4248218A (en) * | 1978-09-22 | 1981-02-03 | Fischer Charles M | Gas administration scavenging mask |
US4264743A (en) * | 1979-04-23 | 1981-04-28 | Nhk Spring Co., Ltd. | Polyurethane foam sealing material and process for producing the same |
US4263908A (en) * | 1979-07-25 | 1981-04-28 | Mizerak Vladimir S | Nasal cannula mask |
US4367735A (en) * | 1979-12-31 | 1983-01-11 | Novametrix Medical Systems, Inc. | Nasal cannula |
US4312359A (en) * | 1980-02-19 | 1982-01-26 | Life Care Systems, Inc. | Noninvasive blood pressure measuring system |
US4367816A (en) * | 1981-06-10 | 1983-01-11 | Wilkes Kenneth R | Tear strip for gas sterilizable package and package |
US4803981A (en) * | 1981-09-22 | 1989-02-14 | Vickery Ian M | Anaesthesia mask |
US4493614A (en) * | 1982-10-08 | 1985-01-15 | Lifecare Services, Inc. | Pump for a portable ventilator |
US4572323A (en) * | 1983-03-28 | 1986-02-25 | Racal Safety Limited | Hearing protectors |
US4660555A (en) * | 1984-09-21 | 1987-04-28 | Payton Hugh W | Oxygen delivery and administration system |
US4641647A (en) * | 1985-02-08 | 1987-02-10 | Sheryl L. Taylor | Device for securing respiratory appliance during respiratory therapy |
USD293613S (en) * | 1985-11-18 | 1988-01-05 | Anesthesia Respiratory Technology, Inc. | Anesthesia and respiratory face mask |
US5000173A (en) * | 1987-11-19 | 1991-03-19 | Daniel Zalkin | Respiratory aid device |
US4802857A (en) * | 1987-11-23 | 1989-02-07 | Laughlin Patrick E | CPR mask |
US4907584A (en) * | 1988-03-03 | 1990-03-13 | Mcginnis Gerald E | Respiratory mask |
US4811730A (en) * | 1988-07-18 | 1989-03-14 | Seitz Corporation | CPR face mask and method of using same |
US4919654A (en) * | 1988-08-03 | 1990-04-24 | Kalt Medical Corporation | IV clamp with membrane |
US4919128A (en) * | 1988-08-26 | 1990-04-24 | University Technologies International Inc. | Nasal adaptor device and seal |
US4915105A (en) * | 1988-10-28 | 1990-04-10 | Lee Tien Chu | Miniature respiratory apparatus |
US5005571A (en) * | 1988-11-25 | 1991-04-09 | Dietz Henry G | Mouth nose mask for use with an inhalation therapy and/or breathing monitoring apparatus |
US4899740A (en) * | 1989-01-17 | 1990-02-13 | E. D. Bullard Company | Respirator system for use with a hood or face mask |
US4989599A (en) * | 1989-01-26 | 1991-02-05 | Puritan-Bennett Corporation | Dual lumen cannula |
US4996983A (en) * | 1989-01-31 | 1991-03-05 | Amrhein Floyd E | Inhaler filtration device with housing supportable by spectacle temple |
US5188101A (en) * | 1991-11-15 | 1993-02-23 | Tumolo Jean S | Premature baby headband for supporting nasal cannulas and oxygen feed tubes |
USD333015S (en) * | 1991-12-02 | 1993-02-02 | Lifecare International, Inc. | Nasal mask |
US5385141A (en) * | 1992-04-16 | 1995-01-31 | Siebe North, Inc. | Speech diaphragm and exhalation valve |
US5592938A (en) * | 1992-06-08 | 1997-01-14 | Respironics Inc. | Mask apparatus |
US5396885A (en) * | 1992-07-31 | 1995-03-14 | Nelson; Joseph M. | Mobile air supply cart having dual tanks and connections allowing simultaneous filling of tank and delivery of air to a user |
US5299599A (en) * | 1992-09-17 | 1994-04-05 | Lifecare International, Inc. | Valving arrangement for a negative pressure ventilator |
US5304146A (en) * | 1992-10-23 | 1994-04-19 | Johnson Melissa C | Medical appliance securing device |
US5394568A (en) * | 1993-01-28 | 1995-03-07 | Minnesota Mining And Manufacturing Company | Molded head harness |
US5623923A (en) * | 1993-06-09 | 1997-04-29 | Intertechnique | Respiratory equipment with comfort adjustment |
US5400776A (en) * | 1993-07-09 | 1995-03-28 | Proprietary Technology, Inc. | Apparatus for maintaining a bend in a medical insufflation tube |
US5488948A (en) * | 1993-09-23 | 1996-02-06 | Intertechnique | Fast donning respiratory protection equipment |
US5398676A (en) * | 1993-09-30 | 1995-03-21 | Press; Roman J. | Portable emergency respirator |
US5704345A (en) * | 1993-11-05 | 1998-01-06 | Resmed Limited | Detection of apnea and obstruction of the airway in the respiratory system |
US5740799A (en) * | 1993-12-21 | 1998-04-21 | Maersk Medical A/S | Device for the supply of oxygen and/or other gases to a patient |
US5509409A (en) * | 1994-09-12 | 1996-04-23 | The Living Trust Of Marjorie F. Weatherholt | Nasal cannula assembly |
US5724965A (en) * | 1995-06-06 | 1998-03-10 | Respironics Inc. | Nasal mask |
US5707342A (en) * | 1995-11-24 | 1998-01-13 | Fuji Photo Optical Co., Ltd. | Protector girdle for endoscopic insertion instrument |
US6193914B1 (en) * | 1995-11-30 | 2001-02-27 | Ubertech Texas, Inc. | Molding thermosetting polymers onto substrates |
US5662101A (en) * | 1995-12-07 | 1997-09-02 | Respironics, Inc. | Respiratory facial mask |
US20020005198A1 (en) * | 1996-07-26 | 2002-01-17 | Philip Rodney Kwok | Full-face mask and mask cushion therefor |
US6701927B2 (en) * | 1996-07-26 | 2004-03-09 | Resmed Limited | Full-face mask and mask cushion therefor |
US6513526B2 (en) * | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
US6357441B1 (en) * | 1996-07-26 | 2002-03-19 | Resmed Limited | Nasal mask and mask cushion therefor |
US6019101A (en) * | 1996-10-31 | 2000-02-01 | Sleepnet Corporation | Nasal air mask |
US6044844A (en) * | 1996-12-02 | 2000-04-04 | Resmed Limited | Mask and harness assembly |
US5735272A (en) * | 1997-01-22 | 1998-04-07 | Dillon; Michael M. | Nasal tube holder having a nasal dilator attached thereto |
US6026811A (en) * | 1998-03-12 | 2000-02-22 | Settle; Romaine A. | Protective cover for nasal air supply hose |
US6196223B1 (en) * | 1998-04-10 | 2001-03-06 | William A. Belfer | Strapless respiratory facial mask for customizing to the wearer's face |
US6679257B1 (en) * | 1998-08-13 | 2004-01-20 | Fisher & Paykel Limited | Breathing assistance apparatus |
US6710099B2 (en) * | 1999-02-02 | 2004-03-23 | The Procter & Gamble Company | Disposable absorbent articles with improved adhesive for attachment to the skin to facilitate water adhesion stability with low pain level removal |
US6536435B1 (en) * | 1999-02-22 | 2003-03-25 | Cabot Safety Intermediate Corporation | Respirator headpiece and release mechanism |
US6358279B1 (en) * | 1999-02-22 | 2002-03-19 | University Of Miami | Minicapsulorhexis valve |
US6997177B2 (en) * | 1999-03-13 | 2006-02-14 | Inno Med Technologies, Inc. | Ventilation interface for sleep apnea therapy |
US20050039757A1 (en) * | 1999-03-13 | 2005-02-24 | Wood Thomas J. | Ventilation interface for sleep apnea therapy |
US6341606B1 (en) * | 1999-05-19 | 2002-01-29 | Mallinckrodt, Inc. | Disposable respiratory mask with adhesive skin interface |
US6532961B1 (en) * | 1999-06-18 | 2003-03-18 | Resmed Limited | Forehead support for facial mask |
US6347631B1 (en) * | 1999-11-09 | 2002-02-19 | Mallinckrodt, Inc. | Cantilever device and method for breathing devices and the like |
US20030217746A1 (en) * | 2000-06-14 | 2003-11-27 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US20020029780A1 (en) * | 2000-06-22 | 2002-03-14 | Frater Robert H. | Mask with gusset |
US6986352B2 (en) * | 2000-06-22 | 2006-01-17 | Resmed Limited | Mask with gusset |
US20040025882A1 (en) * | 2000-07-21 | 2004-02-12 | Stefan Madaus | Holding device for a respiratory mask |
US7018362B2 (en) * | 2000-08-03 | 2006-03-28 | Venetec International, Inc. | Dialysis catheter anchoring system |
US6530373B1 (en) * | 2000-08-04 | 2003-03-11 | Mallinckrodt Inc. | Respirator mask |
US20030000526A1 (en) * | 2001-03-30 | 2003-01-02 | Fred Gobel | Method for controlling a ventilator, and system therefor |
US20030019495A1 (en) * | 2001-05-18 | 2003-01-30 | Palkon David J. | Mask cushion and method of using same |
US20050051176A1 (en) * | 2001-06-18 | 2005-03-10 | Riggins Michael Allen | Nasal and oral cannula apnea detection device |
US6860270B2 (en) * | 2001-08-02 | 2005-03-01 | Joseph A. Sniadach | Double barrel ventilation mask for a patient |
US7011090B2 (en) * | 2001-09-07 | 2006-03-14 | Resmed Limited | Elbow for mask assembly |
US6679265B2 (en) * | 2001-10-25 | 2004-01-20 | Worldwide Medical Technologies | Nasal cannula |
US20030168063A1 (en) * | 2002-03-08 | 2003-09-11 | Gambone Anthony Joseph | Pressure face mask and nasal mask |
US20050061326A1 (en) * | 2002-08-09 | 2005-03-24 | Payne Charles E. | Headwear for use by a sleep apnea patient |
US20040025885A1 (en) * | 2002-08-09 | 2004-02-12 | Payne, Charles E. | Headwear for use by a sleep apnea patient |
USD485905S1 (en) * | 2002-08-09 | 2004-01-27 | Resmed Limited | Nasal mask |
US20040045551A1 (en) * | 2002-09-06 | 2004-03-11 | Ric Investments, Inc. | Patient interface with forehead support system |
US7318437B2 (en) * | 2003-02-21 | 2008-01-15 | Resmed Limited | Nasal assembly |
US20050011523A1 (en) * | 2003-07-18 | 2005-01-20 | Acoba, Llc | Method and system of Individually controlling airway pressure of a patient's nares |
US7191781B2 (en) * | 2003-08-05 | 2007-03-20 | Innomed Technologies, Inc. | Nasal ventilation interface and system |
US20050033247A1 (en) * | 2003-08-06 | 2005-02-10 | Thompson Paul S. | Nasal cannula assembly |
US20050028822A1 (en) * | 2003-08-08 | 2005-02-10 | Tiara Medical Systems, Inc. | Sealing nasal cannula |
US20050051171A1 (en) * | 2003-09-10 | 2005-03-10 | Booth Jamie Lee | Nose breathing mask for a medical patient; and method |
US20050056286A1 (en) * | 2003-09-17 | 2005-03-17 | Huddart Brett John | Breathable respiratory mask |
US7658189B2 (en) * | 2003-12-31 | 2010-02-09 | Resmed Limited | Compact oronasal patient interface |
US7178525B2 (en) * | 2004-02-06 | 2007-02-20 | Ric Investments, Llc | Patient interface assembly supported under the mandible |
US20080006277A1 (en) * | 2004-06-03 | 2008-01-10 | Resmed Limited | Cushion for a Patient Interface |
US20060060200A1 (en) * | 2004-09-21 | 2006-03-23 | Ric Investments, Llc | Cheek-mounted patient interface |
WO2007009182A1 (en) * | 2005-07-19 | 2007-01-25 | Map Medizin-Technologie Gmbh | Respiratory mask and method for manufacturing a respiratory mask |
US20070023044A1 (en) * | 2005-07-29 | 2007-02-01 | Resmed Limited | Life style flow generator and mask system |
US20080004573A1 (en) * | 2006-05-19 | 2008-01-03 | Heiner Kaufmann | Adapter for Affixing a Medical Appliance |
US20080047560A1 (en) * | 2006-07-28 | 2008-02-28 | Resmed Limited | Delivery of respiratory therapy |
US20080060649A1 (en) * | 2006-07-28 | 2008-03-13 | Resmed Limited | Delivery of respiratory therapy |
US20110146684A1 (en) * | 2008-09-12 | 2011-06-23 | Resmed Limited | Foam-based interfacing structure method and apparatus |
Cited By (100)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8613280B2 (en) | 2005-01-12 | 2013-12-24 | Resmed Limited | Cushion for patient interface |
US8485192B2 (en) | 2005-01-12 | 2013-07-16 | Resmed Limited | Cushion for patient interface |
US10456544B2 (en) | 2005-01-12 | 2019-10-29 | ResMed Pty Ltd | Cushion for patient interface |
US9295800B2 (en) | 2005-01-12 | 2016-03-29 | Resmed Limited | Cushion for patient interface |
US11607515B2 (en) | 2005-01-12 | 2023-03-21 | ResMed Pty Ltd | Cushion for patient interface |
US8550082B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8550081B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8550083B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8616211B2 (en) | 2005-01-12 | 2013-12-31 | Resmed Limited | Cushion for patient interface |
US8555885B2 (en) | 2005-01-12 | 2013-10-15 | Resmed Limited | Cushion for patient interface |
US8567404B2 (en) | 2005-01-12 | 2013-10-29 | Resmed Limited | Cushion for patient interface |
US8573215B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US8573213B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US8573214B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US8578935B2 (en) | 2005-01-12 | 2013-11-12 | Resmed Limited | Cushion for patient interface |
US8613281B2 (en) | 2005-01-12 | 2013-12-24 | Resmed Limited | Cushion for patient interface |
US11369765B2 (en) | 2005-10-14 | 2022-06-28 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US11529487B2 (en) | 2005-10-14 | 2022-12-20 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US10434273B2 (en) | 2005-10-14 | 2019-10-08 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US8944061B2 (en) | 2005-10-14 | 2015-02-03 | Resmed Limited | Cushion to frame assembly mechanism |
US10137270B2 (en) | 2005-10-14 | 2018-11-27 | Resmed Limited | Cushion to frame assembly mechanism |
US11833305B2 (en) | 2005-10-14 | 2023-12-05 | ResMed Pty Ltd | Cushion/frame assembly for a patient interface |
US11633564B2 (en) | 2005-10-14 | 2023-04-25 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US9381316B2 (en) | 2005-10-25 | 2016-07-05 | Resmed Limited | Interchangeable mask assembly |
US11890418B2 (en) | 2005-10-25 | 2024-02-06 | ResMed Pty Ltd | Interchangeable mask assembly |
US11596757B2 (en) | 2005-10-25 | 2023-03-07 | ResMed Pty Ltd | Interchangeable mask assembly |
US11052211B2 (en) | 2005-10-25 | 2021-07-06 | ResMed Pty Ltd | Interchangeable mask assembly |
US9962510B2 (en) | 2005-10-25 | 2018-05-08 | Resmed Limited | Respiratory mask assembly |
US10183138B2 (en) | 2005-10-25 | 2019-01-22 | Resmed Limited | Interchangeable mask assembly |
US20100101581A1 (en) * | 2007-01-22 | 2010-04-29 | Map Medizin-Technologie Gmbh | Hollow structure and method/tool for manufacturing same |
US8852480B2 (en) * | 2007-01-22 | 2014-10-07 | Resmed R&D Germany Gmbh | Method for manufacturing hollow structure for breathing mask |
US10016571B2 (en) | 2007-01-22 | 2018-07-10 | Resmed R&D Germany Gmbh | Hollow structure for breathing mask |
US8960196B2 (en) | 2007-01-30 | 2015-02-24 | Resmed Limited | Mask system with interchangeable headgear connectors |
US9937315B2 (en) | 2007-01-30 | 2018-04-10 | Resmed Limited | Mask with removable headgear connector |
US10864342B2 (en) | 2007-01-30 | 2020-12-15 | ResMed Pty Ltd | Mask with removable headgear connector |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
US11395893B2 (en) | 2008-03-04 | 2022-07-26 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US9770568B2 (en) | 2008-03-04 | 2017-09-26 | Resmed Limited | Mask system with snap-fit shroud |
US8522784B2 (en) | 2008-03-04 | 2013-09-03 | Resmed Limited | Mask system |
US8528561B2 (en) | 2008-03-04 | 2013-09-10 | Resmed Limited | Mask system |
US11833277B2 (en) | 2008-03-04 | 2023-12-05 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US8550084B2 (en) | 2008-03-04 | 2013-10-08 | Resmed Limited | Mask system |
US9027556B2 (en) | 2008-03-04 | 2015-05-12 | Resmed Limited | Mask system |
US9962511B2 (en) | 2008-03-04 | 2018-05-08 | Resmed Limited | Mask system with snap-fit shroud |
US9119931B2 (en) | 2008-03-04 | 2015-09-01 | Resmed Limited | Mask system |
US9950131B2 (en) | 2008-03-04 | 2018-04-24 | Resmed Limited | Mask system with snap-fit shroud |
US11529486B2 (en) | 2008-03-04 | 2022-12-20 | ResMed Pty Ltd | Mask system with shroud having extended headgear connector arms |
US11529488B2 (en) | 2008-03-04 | 2022-12-20 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US9757533B2 (en) | 2008-03-04 | 2017-09-12 | Resmed Limited | Mask system with snap-fit shroud |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11305085B2 (en) | 2008-03-04 | 2022-04-19 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11077274B2 (en) | 2008-03-04 | 2021-08-03 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US10751496B2 (en) | 2008-03-04 | 2020-08-25 | ResMed Pty Ltd | Mask system with shroud |
US10786642B2 (en) | 2009-01-30 | 2020-09-29 | ResMed Pty Ltd | Patient interface structure and method/tool for manufacturing same |
US11065406B2 (en) | 2011-04-15 | 2021-07-20 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10842955B2 (en) | 2011-04-15 | 2020-11-24 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10828441B2 (en) | 2011-04-15 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10828443B2 (en) | 2011-04-15 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10828442B2 (en) | 2011-04-15 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10828440B2 (en) | 2011-04-15 | 2020-11-10 | Fisher & Paykle Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10835697B2 (en) | 2011-04-15 | 2020-11-17 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US10603456B2 (en) | 2011-04-15 | 2020-03-31 | Fisher & Paykel Healthcare Limited | Interface comprising a nasal sealing portion |
US11883591B2 (en) | 2011-04-15 | 2024-01-30 | Fisher & Paykel Healthcare Limited | Interface comprising a rolling nasal bridge portion |
US11559647B2 (en) | 2011-04-15 | 2023-01-24 | Fisher & Paykel Healthcare Limited | Interface comprising a nasal sealing portion |
EP3831435A1 (en) * | 2011-07-01 | 2021-06-09 | Fisher & Paykel Healthcare Limited | Mask's clip for overmoulding |
US10946155B2 (en) | 2012-09-04 | 2021-03-16 | Fisher & Paykel Healthcare Limited | Valsalva mask |
US11065412B2 (en) | 2012-09-04 | 2021-07-20 | Fisher & Paykel Healthcare Limited | Valsalva mask |
US10821250B2 (en) | 2012-11-16 | 2020-11-03 | Fisher & Paykel Healthcare Limited | Nasal seal and respiratory interface |
US10449316B2 (en) | 2012-12-13 | 2019-10-22 | Koninklijke Philips N.V. | Mask with red mark alleviating pocket |
US11419999B2 (en) | 2013-08-05 | 2022-08-23 | Fisher & Paykel Healthcare Limited | Seal for a patient interface, interface assemblies and aspects thereof |
WO2015193408A1 (en) * | 2014-06-17 | 2015-12-23 | Resmed Limited | A seal forming structure for a patient interface and a tool and method of manufacturing the seal forming structure |
US11529484B2 (en) * | 2014-06-17 | 2022-12-20 | ResMed Pty Ltd | Seal forming portion, pad and cushion for a patient interface and method of manufacturing |
US10596340B2 (en) | 2014-06-17 | 2020-03-24 | ResMed Pty Ltd | Seal forming structure for a patient interface and a tool and method of manufacturing the seal forming structure |
US11701486B2 (en) | 2014-06-17 | 2023-07-18 | Fisher & Paykel Healthcare Limited | Patient interfaces |
US10518054B2 (en) | 2014-08-25 | 2019-12-31 | Fisher & Paykel Healthcare Limited | Respiratory mask and related portions, components or sub-assemblies |
US11305084B2 (en) | 2014-08-25 | 2022-04-19 | Fisher & Paykel Healthcare Limited | Respiratory mask and related portions, components or sub-assemblies |
JP7181973B2 (en) | 2014-10-10 | 2022-12-01 | レスメド・プロプライエタリー・リミテッド | foam cushion respirator |
JP2021183153A (en) * | 2014-10-10 | 2021-12-02 | レスメド・プロプライエタリー・リミテッド | Foam cushion respiratory apparatus |
US9943146B2 (en) | 2015-05-27 | 2018-04-17 | Qalo Llc | Compression molded silicone ring |
WO2017011571A1 (en) * | 2015-07-14 | 2017-01-19 | Qalo Llc | Compression molded silicone ring |
AU2016294431B2 (en) * | 2015-07-14 | 2019-03-14 | Qalo Holdings, Llc | Compression molded silicone ring |
US10994090B2 (en) | 2015-09-04 | 2021-05-04 | Fisher & Paykel Healthcare Limited | Patient interfaces |
US11452833B2 (en) | 2016-10-05 | 2022-09-27 | Fisher & Paykel Healthcare Limited. | Patient interfaces |
USD824020S1 (en) | 2017-02-23 | 2018-07-24 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD823455S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD837973S1 (en) | 2017-02-23 | 2019-01-08 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD823454S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD969306S1 (en) | 2017-02-23 | 2022-11-08 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD994876S1 (en) | 2017-02-23 | 2023-08-08 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD963837S1 (en) | 2017-03-09 | 2022-09-13 | Fisher & Paykel Healthcare Limited | Headgear component for a nasal mask assembly |
USD901673S1 (en) | 2017-03-09 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Frame and breathing tube assembly for a nasal mask |
USD874646S1 (en) | 2017-03-09 | 2020-02-04 | Fisher & Paykel Healthcare Limited | Headgear component for a nasal mask assembly |
USD855793S1 (en) | 2017-09-20 | 2019-08-06 | Fisher & Paykel Healthcare Limited | Frame for a nasal mask |
USD969993S1 (en) | 2017-09-20 | 2022-11-15 | Fisher & Paykel Healthcare Limited | Headgear for a nasal mask |
USD970720S1 (en) | 2017-09-20 | 2022-11-22 | Fisher & Paykel Healthcare Limited | Frame of a nasal mask |
USD875242S1 (en) | 2017-09-20 | 2020-02-11 | Fisher & Paykel Healthcare Limited | Nasal mask and breathing tube set |
USD1015527S1 (en) | 2017-09-20 | 2024-02-20 | Fisher & Paykel Healthcare Limited | Headgear for a nasal mask |
USD884153S1 (en) | 2018-04-04 | 2020-05-12 | Fisher & Paykel Healthcare Limited | Frame for a mask assembly |
USD1009252S1 (en) | 2018-04-04 | 2023-12-26 | Fisher & Paykel Healthcare Limited | Frame for a mask assembly |
USD1017795S1 (en) | 2022-10-17 | 2024-03-12 | Fisher & Paykel Healthcare Limited | Frame of a nasal mask |
Also Published As
Publication number | Publication date |
---|---|
EP2213324A1 (en) | 2010-08-04 |
US20180221612A1 (en) | 2018-08-09 |
US10786642B2 (en) | 2020-09-29 |
EP2213324B1 (en) | 2016-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10786642B2 (en) | Patient interface structure and method/tool for manufacturing same | |
US9010331B2 (en) | Patient interface structure and method/tool for manufacturing same | |
US20190152109A1 (en) | Cushion, method of and apparatus for molding a cushion for a respiratory mask | |
US9132255B2 (en) | Cushioning structure | |
EP1909876B1 (en) | Breathing mask device and method for producing same | |
US9545491B2 (en) | Gel filling for a patient interface and method for producing a patient interface with a gel filling | |
US10953178B2 (en) | Filled hollow structure and tool for manufacturing same | |
AU2009333009B2 (en) | Respiratory mask | |
JP4727985B2 (en) | Respirator mask pad apparatus, respirator mask, and method for manufacturing the mask pad apparatus | |
US9056177B2 (en) | Respiratory interface with flexing faceplate | |
CN106999690A (en) | Foam spacer breathing apparatus | |
US20130152939A1 (en) | Forehead pad for a breathing mask and method for making the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MAP MEDIZIN-TECHNOLOGIE GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BIENER, ACHIM;REEL/FRAME:024796/0554 Effective date: 20100621 Owner name: MAP MEDIZIN-TECHNOLOGIE GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LANG, BERND;REEL/FRAME:024796/0530 Effective date: 20100621 |
|
AS | Assignment |
Owner name: RESMED R&D GERMANY GMBH, GERMANY Free format text: CHANGE OF NAME;ASSIGNOR:MAP MEDIZIN-TECHNOLOGIE GMBH;REEL/FRAME:030734/0911 Effective date: 20120920 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |