US20070196222A1 - Pump comprising a moving wall and use of a pump of this type - Google Patents
Pump comprising a moving wall and use of a pump of this type Download PDFInfo
- Publication number
- US20070196222A1 US20070196222A1 US11/572,863 US57286305A US2007196222A1 US 20070196222 A1 US20070196222 A1 US 20070196222A1 US 57286305 A US57286305 A US 57286305A US 2007196222 A1 US2007196222 A1 US 2007196222A1
- Authority
- US
- United States
- Prior art keywords
- vacuum pump
- force
- prosthesis
- wall
- pump
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
- A61F2/742—Low pressure systems, e.g. vacuum pump
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
- A61F2/748—Valve systems
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
- A61F2/80—Sockets, e.g. of suction type
- A61F2002/802—Suction sockets, i.e. utilizing differential air pressure to retain the prosthesis on the stump
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Details Of Reciprocating Pumps (AREA)
- External Artificial Organs (AREA)
- Massaging Devices (AREA)
- Compressor (AREA)
Abstract
Description
- The invention relates to a pump comprising a wall which forms a closed-off fluid volume and which can be moved by means of a first external force in the direction of a volume reduction and by means of a second force, after a preceding volume reduction, in the direction of a volume increase, and with an inlet valve which communicates with an inlet port and with an outlet valve in an outlet line in the fluid volume.
- The invention relates, furthermore, to a use of a pump of this type.
- Pumps of this type are known, for example, as hose pumps, in which the fluid is expressed from a fluid-filled hose by means of pressure rollers pressing the hose together and moved in a longitudinal direction of the hose. As a result of the movement of the roller, the upstream end of the hose is filled with fluid again when this end is connected to a fluid supply. The propulsive force for moving the rollers is generated by a motor which may be designed, for example, as an electric or hydraulic motor. Pumps of this type are used for conveying a volume in the pressure direction.
- Another kind of pump of the type initially mentioned is diaphragm pumps, in which the fluid volume is reduced by the diaphragm and moved back and forth by means of a connecting rod and is subsequently increased again. The connecting rod thus transmits both the first force for the volume reduction and the second force for the volume increase.
- In many instances, it is merely necessary to call up a pumping power only in specific operating states when movements, the force flux of which can be used for actuating a pump, take place in a device. Thus, it is known, for example, to evacuate the interspace between a patient's amputation stump and an airtight liner arranged above it, in order, by means of the vacuum formed, to ensure a firm fit of the liner connected to a prosthesis. For this purpose, a piston pump is used, which, when the patient treads on the ground by means of the prosthesis, exerts an evacuation stroke and is returned by means of a return spring. Pumps of this type are relatively bulky particularly because of the return mechanism required.
- The object on which the invention is based is, therefore, to design a pump of the type initially mentioned such that it can be implemented in a small space.
- To achieve this object, according to the invention, a pump of the type initially mentioned is characterized in that it is designed as a vacuum pump, the volume of which can be reduced by means of the external first force against an elastically deformable material, the return force of which forms, after the termination of the external force action, the second force acting counter to the generated vacuum.
- In the pump according to the invention, the working stroke by which the fluid, in particular air, is sucked away from a closed-off volume, is brought about by the return force of the elastically deformable material. Previous deformation for reducing the volume of the fluid material takes place by means of a first force acting externally. The pump according to the invention thus makes it possible to have a very uncomplicated and small-volume design, by means of which a low to medium vacuum can be generated.
- In a first preferred embodiment of the invention, the wall has two rigid walls lying opposite one another, the elastically deformable material being arranged in the interspace formed by the walls. In this case, the elastically deformable material may be formed by a sealing insert running around the edge and delimiting the fluid volume. This embodiment affords the advantage that the external force can act directly on one of the rigid walls.
- In another embodiment likewise having advantages, the wall is designed flexibly, the elastically deformable material bearing, preferably over a large area, against the flexible wall, In this case, a high return force sufficient for many applications can be generated by means of a relatively thin material layer.
- The elastic material may be an open-pored foam which is arranged within the fluid volume and which exerts the return force after a volume reduction has been carried out. The fluid, which is preferably air, accordingly flows through the foam. In this embodiment, the generation of the return force does not take up any additional space at all, since the fluid volume itself is utilized for this purpose. In this case, it is expedient if the foam completely fills the fluid volume, with the exception of residual volumes as a consequence of construction. An alternative elastic material which is capable of throughflow and which can be used for the invention is a wide-mesh knitted fabric.
- The pump according to the invention is implemented in a simple way if the elastic material is surrounded on all sides by the flexible wall. It is also possible, however, for the wall to be partially of rigid design and for a part of the wall such as is required for the volume reduction to be made flexible.
- The pump according to the invention can preferably be produced with a preferred large-area extent and with a thickness which is small, as compared with this, and can therefore in many instances be integrated into the structure of a device without difficulty.
- To press together the fluid volume, at least one pressure element bearing against the flexible wall over a large area is provided. In particular, the fluid volume with a flexible wall may be arranged between two large-area pressure elements.
- The valves may be arranged on the corresponding narrow sides of the flexible wall, but are preferably also arranged in recesses of one of the pressure elements or of both pressure elements, with the result that flexing actions of the flexible wall are reduced.
- The pump according to the invention can advantageously be integrated in the force flux of a system in which forces arise which are utilized to exert one of the two forces. The pump according to the invention is suitable particularly as a vacuum pump.
- In a special application, the pump constitutes part of a prosthesis for a lower extremity. Preferably, in this case, the force occurring due to body weight when a patient treads on the ground is utilized as the first force. The pump may be employed, in particular, for the vacuum assistance of a suction well of the prosthesis, in particular for evacuating the interspace between a liner and the prosthesis shank. A preferred place of use for the pump according to the invention is an artificial foot which makes it possible particularly effectively to have the large-area design of the pump perpendicularly to the force flux occurring during load caused by the body weight.
- The invention will be explained in more detail below by means of exemplary embodiments illustrated in the drawing in which:
-
FIG. 1 shows a diagrammatic illustration of a pump in the initial state according to a first embodiment; -
FIG. 2 shows the pump according toFIG. 1 in the compressed state; -
FIG. 3 shows a pump in an initial state according to a second embodiment; -
FIG. 4 shows a pump in a third embodiment which is integrated into an artificial foot; -
FIG. 5 shows an arrangement of an elastically deformable material consisting of two layers with profilings which point toward one another and in the nonloaded state form a fluid space; -
FIG. 6 shows the arrangement according toFIG. 5 in a loaded state in which the compressed material of the layer completely fills the fluid space; -
FIG. 7 shows an embodiment of a pump according to the invention with two rigid plates lying opposite one another and with an insert running around at the edge and consisting of an elastically deformable material, in the nonloaded state; -
FIG. 8 shows the arrangement according toFIG. 7 in the loaded state. - The pump illustrated in
FIG. 1 has a closedfluid volume 1 which is filled virtually completely with an elastic material in the form of an open-poredelastic foam 2. Thefoam 2 has a substantially large-area extent with a small width. It is surrounded on all sides by aflexible wall 3 which thus has four narrow sides and two large-area sides with large dimensioning, as compared with these. Two large-area pressure elements - The
flexible wall 3 has on opposite narrow sides a tubular or hose-shaped feed 6 and a tubular or hose-shaped outlet 7. Both thefeed 6 and theoutlet 7 are provided in each case with anonreturn valve - For the pumping operation, the
pressure elements FIG. 2 . Thefluid volume 1 together with thefoam 2 contained in it is thereby pressed together, with the result that fluid, preferably air, escapes via thenonreturn valve 9 and theoutlet 7. When the pressure force of thepressure elements foam 2 ensures that thefluid volume 1 returns to the initial state ofFIG. 1 , fluid being sucked into thefluid volume 1 via theinlet 6 and thenonreturn valve 8. - In the modification of the pump, as illustrated in
FIG. 3 , thepressure plate 5′ is provided withrecesses 10 in which thenonreturn valves flexible wall 3 in the region of thenonreturn valves -
FIG. 4 shows an example of the use of a pump of the type described in FIGS. 1 to 3. The pump is in this case integrated into anartificial foot 11, the functional set-up of which is connected to a lower-leg tube 12 of a lower-leg prosthesis. The functional part of the artificial foot consists of an S-shaped spring insert 13, the free ends of which form anupper junction limb 14 and a lowersole limb 15. Between these is located an essentially horizontalintermediate piece 16 which is connected to thejunction limb 14 and to thesole limb 15 in each case by means of acurved transition piece intermediate piece 16 can spring in relation to thesole limb 15 of theinsert 13 under the action of a weight. Under the action of the weight of the prosthesis wearer when the latter puts his foot onto the ground, therefore, the distance between theintermediate piece 16 and thesole limb 15 is reduced. This distance reduction is utilized for the pump employed according to the invention, in that theintermediate piece 16 is connected to apressure element 5″. Thepressure element 5″, of large area per se, is adapted in its form to the form of theintermediate piece 16 and of thecurved transition 17, in order to make it easier to position thepressure element 5″. Thefluid volume 1 filled by thefoam 2 is located, within theflexible wall 3 surrounding thefoam 2 on all sides, between thepressure element 5″ and thesole limb 15 functioning here as acounterpressure element 4. One of theconnections recess 10 of thepressure element 5″ and being connectable, for example as aninlet 6, via a hose line to the interspace between an amputation stump and a liner surrounding the amputation stump, in order to evacuate this interspace. - The functioning of the pump inserted into the
foot 11 corresponds fully to the functioning explained with reference to FIGS. 1 to 3. The load on theartificial foot 11 due to the body weight acts as a pressure force for thepressure element 5″, with the result that theintermediate piece 16 is pressed downward in the direction of thesole limb 15 and thus presses together thefluid volume 1 and thefoam 2. Air thereby escapes from thefluid volume 1. When theartificial foot 11 is relieved, at the latest when thefoot 11 is lifted off from the ground for the next step, thefoam 2 causes the pump to return to the initial position illustrated inFIG. 4 . In this case, air is sucked via theinlet 6 into thefluid volume 1 out of the interspace between the amputation stump and the surrounding liner, that is to say a desired vacuum which stabilizes the fit of the liner on the amputation stump is generated in the interspace. - It can be seen that an
artificial foot 11 is suitable for integrating the pump according toFIG. 4 , because it is easily possible to have a large-area design of thefluid volume 1 and of thefoam 2 perpendicularly to the (vertical) force flux because the anatomy of thefoot 11 likewise tends to extend over a large area. It is nevertheless also possible, of course, to arrange a corresponding pump in other prosthesis parts which execute a relative movement with respect to one another, for example in a knee joint. -
FIGS. 5 and 6 show an exemplary embodiment in which the elastically deformable material is formed by twolayers surface projections 25, the width of which is smaller than arecess 26 between theprojections 25. Thetips 25 of thelayer 21 accordingly project into therecesses 26 of thelayer 22, and vice versa, thus giving rise to the spaces which form thefluid space 1 and which are not filled by the elastically deformable material. - If, then, a pressure causing compression is exerted onto
layers tips 25 are compressed in the height direction and the material is deflected into width, so that the spaces between thetips 25 and therecesses 26 are filled, ideally completely, as illustrated inFIG. 6 . When the external force pressing thelayers layers FIG. 5 , is established. The return causes fluid, in particular air, to be sucked in from a vacuum space connected to thefluid space 1. - The
layers layers wall 3. Alternatively, however, thelayers pressure plates - In the exemplary embodiment illustrated in
FIGS. 7 and 8 , the fluid space is delimited by tworigid walls insert 33 which runs around and connects the edges of therigid walls insert 33 is in this case a channel-like profile consisting of a stable fluidtight material which is connected, fluidtight, to thewalls - By means of an external first force F, the
rigid walls FIG. 8 . Thefluid space 1 is thereby reduced to a maximum, with the result that the fluid contained in thefluid space 1 escapes through theoutlet 7. When the external force F ceases, the state illustrated inFIG. 7 is reestablished due to the return force of theinsert 33, with the result that fluid is sucked into thefluid space 1 via thefeed 6. - It can be seen that the exemplary embodiments illustrated in FIGS. 5 to 8 can be employed in the same way as the exemplary embodiments according to FIGS. 1 to 3, that is to say, in particular, also in an artificial foot or the like,
- The pumps according to the invention may be used, in particular, in prosthesis parts also for other purposes, for example as a hydraulic pump for the control of dynamic functions, for example for the control of hydraulic damping cylinders or for the movement of structural elements of the prosthesis, for example from an uncoupled to a coupled state, in order to carry out dynamic adaption to the situation of use.
Claims (33)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004036669A DE102004036669A1 (en) | 2004-07-28 | 2004-07-28 | Pump with a closed with at least one flexible wall fluid volume |
DE102004036669.1 | 2004-07-28 | ||
PCT/DE2005/001124 WO2006012820A1 (en) | 2004-07-28 | 2005-06-24 | Pump comprising a moving wall and use of a pump of this type |
Publications (1)
Publication Number | Publication Date |
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US20070196222A1 true US20070196222A1 (en) | 2007-08-23 |
Family
ID=34978706
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/572,863 Abandoned US20070196222A1 (en) | 2004-07-28 | 2005-06-24 | Pump comprising a moving wall and use of a pump of this type |
US13/296,816 Abandoned US20120123559A1 (en) | 2004-07-28 | 2011-11-15 | Pump comprising a moving wall and use of a pump of this type |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/296,816 Abandoned US20120123559A1 (en) | 2004-07-28 | 2011-11-15 | Pump comprising a moving wall and use of a pump of this type |
Country Status (10)
Country | Link |
---|---|
US (2) | US20070196222A1 (en) |
EP (1) | EP1771659B1 (en) |
JP (1) | JP5175096B2 (en) |
CN (1) | CN1989342B (en) |
AT (1) | ATE395513T1 (en) |
CA (1) | CA2574889C (en) |
DE (2) | DE102004036669A1 (en) |
PL (1) | PL1771659T3 (en) |
RU (1) | RU2368802C2 (en) |
WO (1) | WO2006012820A1 (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050240282A1 (en) * | 2004-04-22 | 2005-10-27 | Rush Douglas E | Vacuum pump with shock absorption and controlled rotation for prosthetic devices |
US20090036998A1 (en) * | 2007-08-01 | 2009-02-05 | Otto Bock Healthcare Lp | Vacuum pump |
US20100312359A1 (en) * | 2009-06-03 | 2010-12-09 | Caspers Carl A | Dynamically activated variable response socket technology |
US20100312360A1 (en) * | 2009-06-03 | 2010-12-09 | Caspers Carl A | Dynamically-activated variable response socket with hydraulic pump |
US20130123941A1 (en) * | 2010-07-21 | 2013-05-16 | Otto Bock Healthcare Gmbh | Prosthetic knee joint |
US9044348B2 (en) | 2012-04-30 | 2015-06-02 | Ossur Hf | Prosthetic device, system and method for increasing vacuum attachment |
US9198780B2 (en) | 2012-02-14 | 2015-12-01 | Ossur Hf | Vacuum assisted suspension system |
US9364348B2 (en) | 2013-03-01 | 2016-06-14 | Ossur Hf | Vacuum suspension system |
US9757256B2 (en) | 2014-07-01 | 2017-09-12 | Ossur Hf | Pump mechanism for vacuum suspension system |
US9943421B2 (en) | 2015-05-21 | 2018-04-17 | Ossur Iceland Ehf | Membrane pump system for use with a prosthetic system |
US10028845B2 (en) | 2015-01-08 | 2018-07-24 | Ossur Iceland Ehf | Pump mechanism |
US20180360625A1 (en) * | 2007-09-19 | 2018-12-20 | Ability Dynamics, Llc | Vacuum system for a prosthetic foot |
US10179055B2 (en) | 2015-05-29 | 2019-01-15 | Ossur Iceland Ehf | Pump system for use with a prosthetic device |
WO2019152446A1 (en) * | 2018-01-30 | 2019-08-08 | Alps South Europe S.R.O. | Interchangeable pump-lock for prosthetic socket and method of use |
US10413429B2 (en) | 2015-08-27 | 2019-09-17 | Ossur Iceland Ehf | Pump system |
US10512554B2 (en) | 2016-08-26 | 2019-12-24 | Ossur Iceland Ehf | Pump system |
US11020248B2 (en) * | 2007-09-19 | 2021-06-01 | Proteor USA, LLC | Vacuum system for a prosthetic foot |
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ES2375724T3 (en) | 2002-09-27 | 2012-03-05 | The General Hospital Corporation | MICROFLUDE DEVICE FOR SEPERATION OF CELLS AND ITS USES. |
US20070196820A1 (en) | 2005-04-05 | 2007-08-23 | Ravi Kapur | Devices and methods for enrichment and alteration of cells and other particles |
US8921102B2 (en) | 2005-07-29 | 2014-12-30 | Gpb Scientific, Llc | Devices and methods for enrichment and alteration of circulating tumor cells and other particles |
DE102011013002C5 (en) * | 2011-03-04 | 2020-12-17 | Optek-Danulat Gmbh | Flow-through measuring cell |
US9066822B2 (en) | 2011-06-23 | 2015-06-30 | Northwestern University | Vacuum pump systems for prosthetic limbs and methods of using the same |
WO2014126554A1 (en) * | 2013-02-13 | 2014-08-21 | Ossur Hf | Vacuum assisted suspension system |
DE102014010683B4 (en) | 2014-07-22 | 2021-08-19 | Ottobock Se & Co. Kgaa | Liner for a prosthesis |
US9763810B2 (en) | 2014-08-26 | 2017-09-19 | Otto Bock Healthcare Lp | Hydraulically amplified vacuum pump for prosthetic and orthotic devices |
WO2016040894A1 (en) * | 2014-09-11 | 2016-03-17 | Windcatcher Technology LLC | Compressible air pump |
US10806604B2 (en) | 2015-09-04 | 2020-10-20 | Northwestern University | Vacuum pump systems for prosthetic limbs and methods of using the same |
US10426639B2 (en) | 2016-08-31 | 2019-10-01 | Otto Bock Healthcare Lp | Multi-chamber vacuum pump |
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- 2005-06-24 CN CN2005800254011A patent/CN1989342B/en active Active
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US7744653B2 (en) | 2004-04-22 | 2010-06-29 | Otto Bock Healthcare Lp | Vacuum pump with shock absorption and controlled rotation for prosthetic devices |
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US20090036998A1 (en) * | 2007-08-01 | 2009-02-05 | Otto Bock Healthcare Lp | Vacuum pump |
US20110224802A1 (en) * | 2007-08-01 | 2011-09-15 | OttoBock HealthCare LP | Shock absorbing apparatus and method |
US8568489B2 (en) | 2007-08-01 | 2013-10-29 | Otto Bock Healthcare Lp | Vacuum pump for a prosthetic device |
US11020248B2 (en) * | 2007-09-19 | 2021-06-01 | Proteor USA, LLC | Vacuum system for a prosthetic foot |
US20180360625A1 (en) * | 2007-09-19 | 2018-12-20 | Ability Dynamics, Llc | Vacuum system for a prosthetic foot |
US10842653B2 (en) * | 2007-09-19 | 2020-11-24 | Ability Dynamics, Llc | Vacuum system for a prosthetic foot |
US20100312359A1 (en) * | 2009-06-03 | 2010-12-09 | Caspers Carl A | Dynamically activated variable response socket technology |
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US20130123941A1 (en) * | 2010-07-21 | 2013-05-16 | Otto Bock Healthcare Gmbh | Prosthetic knee joint |
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US10561508B2 (en) | 2015-05-21 | 2020-02-18 | Ossur Iceland Ehf | Vacuum pump system with heel pump for a prosthetic leg |
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Also Published As
Publication number | Publication date |
---|---|
RU2368802C2 (en) | 2009-09-27 |
JP5175096B2 (en) | 2013-04-03 |
CA2574889C (en) | 2011-10-18 |
EP1771659B1 (en) | 2008-05-14 |
WO2006012820A8 (en) | 2007-02-15 |
EP1771659A1 (en) | 2007-04-11 |
US20120123559A1 (en) | 2012-05-17 |
DE102004036669A1 (en) | 2006-03-23 |
CA2574889A1 (en) | 2006-02-09 |
CN1989342A (en) | 2007-06-27 |
RU2007107355A (en) | 2008-09-10 |
CN1989342B (en) | 2012-07-04 |
WO2006012820A1 (en) | 2006-02-09 |
DE502005004137D1 (en) | 2008-06-26 |
ATE395513T1 (en) | 2008-05-15 |
JP2008508457A (en) | 2008-03-21 |
PL1771659T3 (en) | 2008-08-29 |
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Legal Events
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AS | Assignment |
Owner name: OTTO BOCK HEALTHCARE IP GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOSLER, LUDER, DR.;HILLMANN, MARTIN;CARSTENS, RALF;REEL/FRAME:019073/0673 Effective date: 20070308 |
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