US20110034907A1 - Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device - Google Patents
Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device Download PDFInfo
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- US20110034907A1 US20110034907A1 US12/903,211 US90321110A US2011034907A1 US 20110034907 A1 US20110034907 A1 US 20110034907A1 US 90321110 A US90321110 A US 90321110A US 2011034907 A1 US2011034907 A1 US 2011034907A1
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- United States
- Prior art keywords
- valve element
- connecting portion
- valve
- body fluids
- drainage system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
- A61F5/4404—Details or parts
- A61F5/4405—Valves or valve arrangements specially adapted therefor ; Fluid inlets or outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/031—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member the hinge being flexible
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
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- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Epidemiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A body fluids drainage system includes a urinary catheter, a drainage collection bag, and a connection member connected between the urinary catheter and the drainage collection bag. The connection member houses a valve element formed from a sheet of material and projecting a coherent plane. The valve element defines a longitudinal direction extending between a connecting portion and a flap portion and a recess formed on a periphery of the valve element between the connecting portion and the flap portion.
Description
- 1. Field of the Invention
- The present invention relates to a device for providing anti-reflux in a body fluid drainage and/or sampling system comprising at least one part providing a valve seat, and a valve element defining an outer contour formed from a sheet-shaped material blank, said valve element including at least one connecting portion and a flap portion and defining a longitudinal direction extending between the connecting portion and the flap portion, and retaining means for retaining the valve element with respect to the device, said retaining means being integral with the device.
- 2. Description of the Related Art
- Devices for preventing backflow or reflux in systems for drainage and/or sampling of body fluids are well known in the art. Such devices, which either constitute or have the function of valves, may e.g. be positioned in a connector member connecting a urinary catheter with a urine drainage bag and prevent reflux of the collected urine to the catheter.
- There are various designs of such devices. One type of valve which has proven efficient and which is at the same time of a simple structure is the flap or flutter type of valve. In such a valve, a relatively thin flap serves as a valve element and is connected with one or more parts of the device in such a way that the flap is able to flex or pivot between an open and a closed position. In the closed position, the flap abuts against a valve seat formed on any of the parts of the system. The flap thus allows for passage of fluid in one direction and seals against the valve seat when fluid pressure is exerted in the opposite direction.
- The connection between the valve element and the other part or parts of the device may be carried out in different ways. One example is shown in GB patent application No. 2 313 430, in which a flap is formed as the inner portion of a hollow tubular structure forming a valve element. The flap of the valve element is connected integrally with a surrounding connecting portion at one point only and is thus separated from the connecting portion by a C-shaped slot. A simpler version of the same principle is disclosed in U.S. Pat. No. 3,529,599, in which the valve includes a disk-shaped valve element with a corresponding C-shaped slot. During manufacture of such a valve element, great care must be observed during provision of the slot, as the cut-out material produced may interfere with the manufacturing process and may, at worst, cause complete shutdown, just as any residual material on the cutting surface may affect the sealing properties of the valve. Furthermore, in order to obtain a correct seal, the valve seat of both of the above devices must extend radially inwards of the flap portion. Consequently, the overall dimensions of the anti-reflux device are necessarily relatively large in relation to the available inner dimensions of the tubes of the system.
- U.S. Pat. No. 3,901,235 discloses an anti-reflux device positioned at the drip chamber of a body fluid collection bag, in which the valve element is relatively large and is sealed to the drip chamber around a major part of its periphery, leaving only the lower periphery free to pivot and allow for passage of fluid. However, as the flap portion thus only constitutes a small part of the valve element, there is a large amount of surplus material that does not take part in the actual function of the device. Furthermore, the sealing operation entails that the manufacture of the device becomes more complicated.
- U.S. Pat. No. 3,968,925 discloses an anti-reflux valve located at the drip chamber of a fluid drainage bag, in which connecting portions of the valve element are formed as two radially extending ears protruding from the flap portion. The ears are received in retaining pockets formed under a separate retaining member in the form of a strip bonded to the drip chamber forming the valve seat. As the strip is only bonded to the drip chamber at selected portions, the valve element is slidably received in the pockets. In addition to the fact that such a slidable and thus immediately releasable connection is not desirable for all purposes, the manufacture and assembly of such a device is rendered expensive and cumbersome by the separate retaining member, its attachment to the drip chamber and the positioning of the valve element.
- Furthermore, a commercially available device is known in which the valve element has the shape of a substantially cylindrical flap portion and a connecting portion, in which two apertures are formed for the accommodation of retaining means in the form of protrusions such as upstanding pins or the like. The valve elements including the apertures are usually formed by any suitable cutting operation, such as punching, of a blank of material. Due to the characteristics of the materials traditionally used in such valve elements and to the dimensions of the devices, difficulties may arise during manufacture of the valve elements. Such difficulties include that the cut-out or punched-out material in the form of free waste corresponding to the apertures may adhere to the valve elements due to static electricity generated by the handling of the material. In addition to the fact that the free waste may complicate the manufacturing process and the assembly of the device and render the valve leaking, it may have severe consequences if such free waste tears itself loose during use of the system and moves to other parts of the body fluid drainage and/or sampling system. Consequently, precautions in the form of an additional production step must be taken in order to secure that the free waste is removed during manufacture of the device.
- With this background it is an object of the present invention to improve a device of the kind mentioned in the introduction with respect to ease and efficiency of manufacture, and which at the same time provides for a secure retention of the valve element in the device.
- This and further objects are met by the provision of a device of the kind mentioned in the introduction, which is characterized in that the connecting portion includes engagement means formed integrally with the valve element for engagement with said retaining means, the valve element projecting a coherent plane. In this relation the term ‘coherent’ means that no material has been stamped, punched or cut out, i.e. no material has been removed from within the outer contour of the valve element. Slits may be provided within said outer contour, as long as no material is removed from the valve element.
- The invention provides a device of the kind mentioned in the introduction, which is characterized in that the connecting portion includes engagement means formed integrally with the valve element for engagement with said retaining means, the sheet-shaped material being intact in said valve element.
- The provision of integral engagement means in the valve element, which leave the material intact, entails that the disadvantages connected with the free waste produced during manufacture of the prior art devices are eliminated, both during the manufacturing process and in the finished product.
- In a preferred embodiment, the engagement means include at least one incision and preferably two incisions in said outer contour, said incision or incisions extending substantially transverse with respect to said longitudinal direction, said incision or incisions being preferably formed at the transition between the flap portion and the connecting portion. This provides for a reliable connection between the valve element and the retaining means of the device, and an optimum use of the material and at the same time, the dimensions of the flap portion and the connecting portion may be chosen in an advantageous manner.
- In order to improve the retention of the valve element with respect to the retaining means even further, the engagement means may include a hook-shaped section positioned outwards of said at least one incision with respect to said longitudinal direction.
- In an embodiment, which is particularly advantageous with respect to manufacturing conditions, the outer contour forms a curve defining a continuously advancing function on a respective side of the longitudinal direction.
- In an alternative embodiment, the engagement means are formed within said outer contour. This provides for a particularly compact design of the valve element.
- The engagement means are advantageously provided as at least one slit in the sheet-shaped material.
- In one embodiment of the invention the engagement means are formed integrally in said outer contour.
- The body fluid to be collected and/or sampled may be of any conceivable kind. However, the device is particularly advantageous for applications in which the body fluid is urine.
- In one embodiment of the invention the valve seat providing part constitutes a connector for connection with a urinary catheter, forms part of a hose in said system or of a sample port device.
- One embodiment of the invention relates to a valve element including at least one connecting portion and a flap portion and defining a longitudinal direction extending between the connecting portion and the flap portion, and with engagement means integrally formed in the valve element, wherein the valve element including the engagement means is manufactured by cutting along a closed line in a sheet-shaped material blank.
- One embodiment relates to a method of manufacturing a device for providing anti-reflux in a body fluid drainage and/or sampling system, comprising providing at least one part including a valve seat, forming a valve element defining an outer contour from a sheet-shaped material blank, said valve element including at least one connecting portion and a flap portion, providing retaining means integral with the device, and bringing the connecting portion into engagement with the retaining means, wherein engagement means are formed integrally with the valve element, the valve element projecting a coherent plane.
- One embodiment of the invention relates to a method of manufacturing a valve element in a body fluid drainage and or sampling system having a connection portion, a flap portion, and engagement means integrally in the valve element comprising the step of cutting the valve element and the engagement means along one closed line in a sheet-shaped material blank.
- One embodiment relates to a method of manufacturing a valve element in a body fluid drainage and or sampling system having a connection portion, a flap portion, and engagement means integrally in the valve element comprising the step of cutting the valve element along one closed line in a sheet-shaped material blank; and cutting at least one slit in the sheet-shaped material leaving no waste material.
- Although many of the embodiments have a connection portion, which is symmetrical around a horizontal axis, it will readily be appreciated that the upper and the lower part of the connection portion can have different profiles.
- As is well known by the skilled person, the cutting operation may be performed by punching, stamping or die-cutting, preferably in a rolling operation, or by using any other suitable technique such as cutting by water or laser.
- Further details and advantages are readily appreciated from the appended drawings and the following description.
- In the following the invention will be described in further detail with reference to the schematic drawings, in which like references are used for like elements, and in which
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FIG. 1 shows an exploded perspective view of a device according to an embodiment of the invention, -
FIG. 2 shows a plan view, on a larger scale, of a detail of the device shown inFIG. 1 , -
FIGS. 3 to 22 show plan views of alternative embodiments of a detail of the device according to the invention, and -
FIGS. 23 to 25 shows sectional views of details of the device according to the invention. - The object of the invention provides two different principles for movement of the valve element, namely one where the valve element is fixed in the flow direction at the connecting portion, which calls for the valve element to flex to allow the valve to function properly, and the other where the valve element has some clearance in the flow direction so as to allow the valve element to pivot freely around the retaining means, the latter principle not necessarily requiring any flexibility of the material of the valve element. The two principles may also be combined.
- Thus, the sheet-shaped material forming the blank can be chosen with regard to the applied principle(s) of movement.
- In one aspect of the invention the contact surface, between the connection portion of the valve element and the retaining means is minimised, thereby reducing the friction, enabling the valve element to pivot more freely around the retaining means.
- In another aspect of the invention the clearance between the connection portion of the valve element and the retaining means is minimised, providing the possibility of maximum control of the valve element regarding movement in the plane, in which the valve element extends, e.g. lateral movement.
- In yet another aspect of the invention the retaining means are in the shape of pins. This will entail an improved flow through the valve, as cavities making up dead spots created by integral retaining means in the shape of integrated walls are eliminated. These dead spots impeding the free flow of the fluid are especially undesirably, since they increase the risk of bacterial growth and other possible accumulation of material in the system.
- The invention is now explained more in detail with reference to the drawings showing preferred embodiments of the invention.
- A device for providing anti-reflux, i.e. for preventing backflow or reflux, in a body fluid drainage and/or sampling system is generally designated 1 in
FIG. 1 . The device 1 comprises afirst part 2, which in the embodiment shown constitutes a connector having connectingmeans 3 for releasable interconnection with e.g. a discharge tube (not shown) of a urinary catheter, and asecond part 4 intended for connection with thefirst part 2 at one end 5. At anopposite end 6 of thesecond part 4 connecting means (not shown in detail) are provided for connection with e.g. a tube or hose (not shown) leading to e.g. a collection bag for the body fluid. Thesecond part 4 furthermore comprises an opening 7 for the taking of a sample of the fluid. The above details of the device are not essential to the present invention. The device could be positioned in other parts of the system as well. Examples of such alternative positions are: in a hose or tube member of the system, or in a sample port device. The device may also be utilized in connection with other body fluids than urine, but also in connection with other fluids as well as gasses. - The
first part 2 and thesecond part 4 each has a through-going cavity, of which only the cavity 8 of thefirst part 4 is clearly visible. The cavities are intended to lead the body fluid from e.g. the catheter to the collection bag. In order to prevent body fluid from flowing in the opposite direction, avalve element 9 is inserted between the first andsecond parts valve element 9, which will be described in further detail in the following, is accommodated in thefirst part 2 and is retained in its position by means of integral retaining means. The integral retaining means include twoprotrusions 10 a,10 b formed integrally with the inner wall of thefirst part 2. Theseprotrusions 10 a,10 b split the space in which thevalve element 9 is accommodated partly in two, i.e. a recess 11 on one side and a section forming avalve seat 12 on the other. Thesecond part 4 may be provided with one or more protrusions corresponding to the recess 11 such that the valve element 8 is securely retained in thefirst part 2. In case fluid for some reason should flow or be pressed back in the direction from thesecond part 4 to thefirst part 2, thevalve element 9 is brought into abutment with thevalve seat 12 surrounding the cavity 8, and backflow into thefirst part 2 and further into e.g. the catheter is prevented. - The structure of the
valve element 9 is shown in further detail inFIG. 2 . Thevalve element 9 includes a connectingportion 13 and aflap portion 14. In the embodiment ofFIGS. 1 and 2 , the shape of thevalve element 9 as defined by itsouter contour 15 and a longitudinal direction illustrated by alongitudinal line 16 is such that anincision flap portion 14 and the connectingportion 13 on either side of thelongitudinal line 16. Each of theincisions valve element 9, however as indicated inFIG. 2 with a slight inclination in the direction of the connectingportion 13. Outwards of theincisions longitudinal line 16, a hook-shapedsection portion 13. Theincisions portions valve element 9. As will be described in further detail in connection with the description of the embodiment ofFIG. 3 , the provision of integral engagement means entails a number of advantages during manufacture as well as in use of the device. During manufacture of the device these integral engagement means are brought into engagement with the retaining means of thefirst part 2, as the connectingportion 13 of thevalve element 9 is placed in the recess 11. The form-locking engagement between theincisions sections valve element 9 and theprotrusions 10 a,10 b of thefirst part 2 prevents that thevalve element 9 is moved from its accommodation in thefirst part 2. - It is noted that in the embodiment shown, the
valve element 9 is substantially symmetrical with respect to thelongitudinal line 16. However, other configurations of thevalve element 9 are of course conceivable, including those in which the incisions are not of the same shape. Furthermore, thefirst part 2 and thesecond part 4 may be separate parts which are assembled in any suitable manner. The device 1 may comprise additional parts such as e.g. separate locking means for keeping the first andsecond parts - In
FIG. 3 another embodiment of avalve element 9 is shown. Only differences from the embodiment shown inFIGS. 1 and 2 will be described in detail. Thevalve element 9 comprises a connectingportion 13 and aflap portion 14. In principle, the engagement means of thevalve element 9 are formed in the same manner as in the embodiment ofFIGS. 1 and 2 and thus includeincisions sections portion 13 do not extend outwards of theincisions outer contour 15 of thevalve element 9 forms a curve defining a continuously advancing function on a respective side of the longitudinal direction illustrated bylongitudinal line 16. This entails, i.a., that during manufacture of thevalve element 9, only two points at a time need to be cut when thevalve element 9 is cut out of a blank of sheet-shapedmaterial 30. The cutting operation may be performed by punching, stamping or die-cutting, preferably in a rolling operation, or by using any other suitable technique such as cutting by water or laser. - A further embodiment of the
valve element 9 is shown inFIG. 4 , where theconnection portion 13 is substantially rectangular. -
FIG. 5 shows an embodiment of thevalve element 9, where the main portion of theconnection portion 13 is substantially rectangular with hook-shaped parts on both ends of theconnection portion 13. - In
FIG. 6 theconnection portion 13 has a similar profile as inFIG. 5 , only this one is symmetrical around a horizontal axis. As the anti-reflux device can be in various positions during use, e.g. turned upside down, the connectingportion 13 may be substantially symmetrical around a horizontal axis to achieve similar contact surfaces with the retaining means corresponding to theprotrusions 10 a, 10 b inFIG. 1 regardless of the orientation of the anti-reflux device. It is preferable that the retaining means of the anti-reflux device, e.g. provided in the first part, are formed in a corresponding manner. -
FIG. 7 shows another embodiment of thevalve element 9, where theconnection portion 13 is substantially rectangular, but with incisions in the lower part of theconnection portion 13. - The embodiment of the
valve element 9 shown inFIG. 8 has a similar profile as the valve element inFIG. 7 , only this one is symmetrical around a horizontal axis. This shape of theconnection portion 13 as well as the one ofFIG. 8 provides the possibility of maximum control of thevalve element 9 regarding movement in the plane, in which the valve element extends, e.g. lateral movement. - In
FIG. 9 another embodiment of thevalve element 9 is shown, where the main portion of theconnection portion 13 is rectangular with downward projecting parts situated at some distance from the ends of theconnection portion 13. This profile of theconnection portion 13 provides the possibility of having relatively small contact surfaces with the retaining means, which enables thevalve element 9 to pivot more freely around the retaining means. - The sheet-shaped material forming the blank 30 may be of any suitable material known per se and having suitable dimensions, such as a relatively thin plastic material. As in the previously and subsequently described embodiments, the provision of integral engagement means entails that no cut-out or punched-out material in the form of free waste is produced. There is thus no need for manufacturing steps including the removal of the free waste, as the lattice waste formed is coherent. This is of particular importance when the dimensions are small, as is the case here, as forces resulting i.a. from the static electricity generated by handling of the material may exceed other forces, such as gravity.
-
FIGS. 10 to 11 show further embodiments of thevalve element 9. Theconnection portion 13 of thevalve element 9 inFIG. 10 has a similar profile as the valve element inFIG. 9 , only this one is symmetrical around a horizontal axis. Moreover, examples of contact surfaces A, B, C, D, E between theconnection portion 13 and the retaining means (not shown) are indicated to illustrate the numerous contact surfaces possible. The different contact surfaces can be applied in combination. For the sake of simplicity the contact surfaces A, B, C, D, E are only indicated in one area of theconnection portion 13, but the same options apply to the distal end as well as the upper part of theconnection portion 13.FIG. 11 shows an embodiment of thevalve element 9, where the main portion of theconnection portion 13 is rectangular with downward projecting, substantially triangular parts. InFIG. 11 other examples of contact surfaces F, G, H, I, J are shown. It is preferable that the retaining means of the anti-reflux device, e.g. provided in the first part, are formed in a corresponding manner so as to accommodate thevalve element 9 and the contact surfaces. - The embodiment of the
valve element 9 shown inFIG. 12 has a similar profile as the valve element inFIG. 11 , only this one is symmetrical around a horizontal axis. -
FIG. 13 shows an embodiment of thevalve element 9, where the top and the sides of theconnection portion 13 are substantially perpendicular, whereas the lower parts of the contour of theconnection portion 13 are downward inclined towards the end of theconnection portion 13. - In
FIG. 14 theconnection portion 13 has a similar profile as inFIG. 13 , only this one is symmetrical around a horizontal axis, i.e. the top of theconnection portion 13 has downward inclined parts of the contour as well. -
FIG. 15 shows an embodiment of thevalve element 9, where the top and the sides of theconnection portion 13 are substantially perpendicular, whereas the lower parts of the contour of theconnection portion 13 are downward inclined towards the middle of theconnection portion 13. - The embodiment of the
valve element 9 shown inFIG. 16 has a similar profile as the valve element inFIG. 15 , only this one is substantially symmetrical around a horizontal axis, i.e. the top of theconnection portion 13 has downward inclined parts of the contour as well. - In
FIG. 17 the embodiment of thevalve element 9 has aconnection portion 13, which is substantially trapezoidal. -
FIG. 18 shows an embodiment of thevalve element 9, where theconnection portion 13 is substantially rectangular, and where theflap portion 14 is in the shape of a crescent, which ends are connected to theconnection portion 13 via straight lines. -
FIG. 19 shows an embodiment of thevalve element 9, where the lower and the upper parts of the contour of theconnection portion 13 are downward inclined towards the ends of theconnection portion 13. - As an alternative, the engagement means may be provided within the outer contour of the valve element. It is, however, important that the sheet-shaped material is kept intact during the provision of the engagement means and thus projects a coherent plane. It is further preferable that the retaining means of the anti-reflux device, e.g. provided in the first part, are formed in a corresponding manner.
- Examples of such engagement means are shown in
FIGS. 20 to 22 , in which only features regarding the engagement means will be described in detail. - In the embodiment of
FIG. 20 , the engagement means are formed as a pair of crescent-shapedslits portion 13 of thevalve element 9. Theouter contour 15 of thevalve element 9 may be formed such that the transition area between theflap portion 14 and the connectingportion 13 is slightly narrowed. - In
FIG. 21 a pair of longitudinally extendingslits - In
FIG. 22 , only one set 40 of engagement means is provided in the form of two crossedslits 40 a,40 b. Other configurations and combinations of such slits are of course conceivable, including three sets of engagement means cooperating with a corresponding number of retaining means of the device. -
FIG. 23 shows an embodiment of the invention, where the retaining means 10 a, 10 b are two protrusions in the shape of pins which protrude from the back wall of the recess 11 (not shown). Upper retaining means 32 is also provided in the shape of a substantially flat surface, against which thevalve element 9 can rest if for example the anti-reflux device is placed upside down. - In
FIG. 24 another embodiment of the invention is shown, in which the retaining means 10 a, 10 b are in the shape of pins, and the upper retaining means 32 is provided with downward projecting parts -
FIG. 25 shows yet another embodiment of the invention, in which the retaining means 10 a, 10 b as well as the upper retaining means 32 are in the shape of pins. - The appended drawings are schematic, i.e. they are schematic examples of embodiments of the invention. For example the shape of the
flap portion 14 and/or the different angles of theconnection portion 13 can be altered, or the corners can be rounded which will improve the functionality and hygiene of the device as corners are eliminated causing the urine to flow more freely. - The invention should not be regarded as being limited to the embodiments described in the above and shown in the drawings. Various modifications and combinations are conceivable without departing from the scope of the appended claims.
Claims (10)
1. A body fluids drainage system comprising:
a urinary catheter;
a drainage collection bag; and
a connection member connected between the urinary catheter and the drainage collection bag, the connection member housing a valve element formed from a sheet of material and projecting a coherent plane, the valve element defining a longitudinal direction extending between a connecting portion and a flap portion and a recess formed on a periphery of the valve element between the connecting portion and the flap portion.
2. The body fluids drainage system of claim 1 , wherein the connecting portion includes a hook-shaped engagement section formed integrally with the valve element and configured to engage with the connection member.
3. The body fluids drainage system of claim 1 , wherein the recess is formed to extend in a direction substantially transverse to the longitudinal direction.
4. The body fluids drainage system of claim 1 , wherein the valve element defines a first recess formed on a first side of the periphery of the valve element between the connecting portion and the flap portion and a second recess formed on a second side of the periphery of the valve element between the connecting portion and the flap portion.
5. A body fluids drainage system comprising:
a urinary catheter;
a drainage collection bag; and
a connection member connected between the urinary catheter and the drainage collection bag, the connection member housing a valve element formed from a sheet of material and projecting a coherent plane, the valve element defining a longitudinal direction extending between a connecting portion and a flap portion;
wherein the connecting portion includes a hook-shaped engagement section formed integrally with the valve element for engagement with the connection member.
6. The body fluids drainage system of claim 5 , wherein the hook-shaped engagement section is formed from an incision in a periphery of the valve element that extends substantially transverse with respect to the longitudinal direction.
7. The body fluids drainage system of claim 6 , wherein the incision is formed at a transition between the flap portion and the connecting portion.
8. A body fluids drainage system comprising:
means for draining urine from a bladder;
means for collecting the urine drained from the bladder; and
means for housing a valve within the system, the valve formed from a sheet of material to project a coherent plane and having a connecting portion and a flap portion and a recess formed on a periphery of the valve between the connecting portion and the flap portion.
9. The body fluids drainage system of claim 8 , wherein the valve comprises an anti-reflux valve configured to prevent backflow of the urine toward the bladder.
10. The body fluids drainage system of claim 8 , wherein the valve is flexible and configured for movement of the flap portion relative to the connecting portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/903,211 US20110034907A1 (en) | 2003-11-19 | 2010-10-13 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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DKPA200301715 | 2003-11-19 | ||
DKPA200301715 | 2003-11-19 | ||
PCT/DK2004/000802 WO2005048890A2 (en) | 2003-11-19 | 2004-11-19 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
DKPCT/DK2004/000802 | 2004-11-19 | ||
US57977007A | 2007-03-12 | 2007-03-12 | |
US12/903,211 US20110034907A1 (en) | 2003-11-19 | 2010-10-13 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US57977007A Division | 2003-11-19 | 2007-03-12 |
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US20110034907A1 true US20110034907A1 (en) | 2011-02-10 |
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Family Applications (2)
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US10/579,770 Expired - Fee Related US7837661B2 (en) | 2003-11-19 | 2004-11-19 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
US12/903,211 Abandoned US20110034907A1 (en) | 2003-11-19 | 2010-10-13 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
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US10/579,770 Expired - Fee Related US7837661B2 (en) | 2003-11-19 | 2004-11-19 | Device for providing anti-reflux in a body fluid collection and/or sampling system, and method of manufacturing such a device |
Country Status (6)
Country | Link |
---|---|
US (2) | US7837661B2 (en) |
EP (1) | EP1691735B1 (en) |
AT (1) | ATE456343T1 (en) |
DE (1) | DE602004025373D1 (en) |
DK (1) | DK1691735T3 (en) |
WO (1) | WO2005048890A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20150013093A (en) * | 2013-07-26 | 2015-02-04 | 반즈 그룹 인크. | Multiple parts reed valve and method of manufacturing |
US20210093780A1 (en) * | 2019-09-27 | 2021-04-01 | Engain | Apparatus for preventing backflow |
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US7753894B2 (en) | 2004-04-27 | 2010-07-13 | Smith & Nephew Plc | Wound cleansing apparatus with stress |
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US7644732B2 (en) * | 2005-04-20 | 2010-01-12 | Dana Canada Corporation | Slide-in flapper valves |
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US7318451B2 (en) | 2005-04-20 | 2008-01-15 | Dana Canada Corporation | Flapper valves with spring tabs |
EP1946786A1 (en) | 2007-01-19 | 2008-07-23 | Coloplast A/S | An irrigation system with a pump |
CN101868203B (en) | 2007-11-21 | 2014-10-22 | 史密夫及内修公开有限公司 | Wound dressing |
US8372036B2 (en) | 2009-05-06 | 2013-02-12 | Alcon Research, Ltd. | Multi-layer heat assembly for a drug delivery device |
GB201015656D0 (en) | 2010-09-20 | 2010-10-27 | Smith & Nephew | Pressure control apparatus |
US9084845B2 (en) | 2011-11-02 | 2015-07-21 | Smith & Nephew Plc | Reduced pressure therapy apparatuses and methods of using same |
JP6276251B2 (en) | 2012-03-20 | 2018-02-07 | スミス アンド ネフュー ピーエルシーSmith & Nephew Public Limited Company | Operation control of decompression therapy system based on dynamic determination of duty cycle threshold |
US9427505B2 (en) | 2012-05-15 | 2016-08-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus |
US10610677B2 (en) * | 2014-05-19 | 2020-04-07 | Celeste V. Bonham | Urological system that includes connector with integrated non-return check valve for extension tubing and urology collection systems |
WO2016103032A1 (en) | 2014-12-22 | 2016-06-30 | Smith & Nephew Plc | Negative pressure wound therapy apparatus and methods |
US11052234B2 (en) | 2017-02-15 | 2021-07-06 | Celeste V. Bonham | Connector with integrated non-return check valve for extension tubing and urology collection systems |
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US3965900A (en) * | 1974-10-02 | 1976-06-29 | The Kendall Company | Anti-reflux device |
US5472123A (en) * | 1994-08-12 | 1995-12-05 | Jangaard; Stephen S. | Flap valve for the neck of a flexible-walled bottle |
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US3529599A (en) * | 1968-05-08 | 1970-09-22 | American Hospital Supply Corp | Collection container for medical liquids |
US3586041A (en) * | 1970-01-07 | 1971-06-22 | Bard Inc C R | Flutter check valve |
US3807444A (en) * | 1972-10-10 | 1974-04-30 | Ca Valve Ltd | Check valve |
US3901235A (en) * | 1973-05-24 | 1975-08-26 | Kendall & Co | Anti-reflux device for urinary collection bags |
US3968925A (en) * | 1975-05-12 | 1976-07-13 | Plastronics, Inc. | Anti-reflux valve |
US4784654A (en) * | 1982-11-16 | 1988-11-15 | Illinois Tool Works, Inc. | Urinary collection system and improved female urinary appliance |
SE459469B (en) * | 1982-11-16 | 1989-07-10 | Illinois Tool Works | URIN COLLECTION FOR WOMEN |
US4946451A (en) * | 1983-01-27 | 1990-08-07 | The Kendall Company | Liquid valve system |
US4784657A (en) * | 1985-10-01 | 1988-11-15 | Ceramed Corporation | Syringe-vial material transfer interconnector |
US4795449A (en) * | 1986-08-04 | 1989-01-03 | Hollister Incorporated | Female urinary incontinence device |
IT218931Z2 (en) * | 1989-10-31 | 1992-11-10 | Adler | FLOW CONCENTRATION LAMELLAR TYPE NON-RETURN VALVE |
GB2242504B (en) * | 1990-03-27 | 1994-04-06 | Hartley Simon Ltd | A flap valve |
DE9310673U1 (en) | 1993-07-14 | 1994-08-18 | Braun Melsungen Ag | check valve |
DE4442352C1 (en) * | 1994-11-29 | 1995-12-21 | Braun Melsungen Ag | Valve arrangement provided in connector for use e.g. with cannula |
GB9610848D0 (en) | 1996-05-23 | 1996-07-31 | S G & P Payne | Urine collecting device |
-
2004
- 2004-11-19 WO PCT/DK2004/000802 patent/WO2005048890A2/en active Application Filing
- 2004-11-19 US US10/579,770 patent/US7837661B2/en not_active Expired - Fee Related
- 2004-11-19 DE DE602004025373T patent/DE602004025373D1/en active Active
- 2004-11-19 DK DK04797463.9T patent/DK1691735T3/en active
- 2004-11-19 AT AT04797463T patent/ATE456343T1/en not_active IP Right Cessation
- 2004-11-19 EP EP04797463A patent/EP1691735B1/en not_active Not-in-force
-
2010
- 2010-10-13 US US12/903,211 patent/US20110034907A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US3965900A (en) * | 1974-10-02 | 1976-06-29 | The Kendall Company | Anti-reflux device |
US5472123A (en) * | 1994-08-12 | 1995-12-05 | Jangaard; Stephen S. | Flap valve for the neck of a flexible-walled bottle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150013093A (en) * | 2013-07-26 | 2015-02-04 | 반즈 그룹 인크. | Multiple parts reed valve and method of manufacturing |
KR102249338B1 (en) | 2013-07-26 | 2021-05-07 | 반즈 그룹 인크. | Multiple parts reed valve and method of manufacturing |
US20210093780A1 (en) * | 2019-09-27 | 2021-04-01 | Engain | Apparatus for preventing backflow |
EP3797822A3 (en) * | 2019-09-27 | 2021-07-14 | Engain | Apparatus for preventing backflow |
Also Published As
Publication number | Publication date |
---|---|
EP1691735A2 (en) | 2006-08-23 |
DK1691735T3 (en) | 2010-05-31 |
EP1691735B1 (en) | 2010-01-27 |
WO2005048890A2 (en) | 2005-06-02 |
DE602004025373D1 (en) | 2010-03-18 |
US7837661B2 (en) | 2010-11-23 |
ATE456343T1 (en) | 2010-02-15 |
WO2005048890A3 (en) | 2005-06-30 |
US20070282283A1 (en) | 2007-12-06 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: COLOPLAST A/S, DENMARK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAERN, VIGGO AABERG, MR.;JENKINS, ANDREW EDWARD, MR.;SIGNING DATES FROM 20060522 TO 20060608;REEL/FRAME:025424/0704 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |