WO1984000881A1 - Artificial limb valve - Google Patents

Artificial limb valve Download PDF

Info

Publication number
WO1984000881A1
WO1984000881A1 PCT/SE1983/000318 SE8300318W WO8400881A1 WO 1984000881 A1 WO1984000881 A1 WO 1984000881A1 SE 8300318 W SE8300318 W SE 8300318W WO 8400881 A1 WO8400881 A1 WO 8400881A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
artificial limb
space
cone
ball
Prior art date
Application number
PCT/SE1983/000318
Other languages
French (fr)
Inventor
Kjell Engstroem
Original Assignee
Kjell Engstroem
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kjell Engstroem filed Critical Kjell Engstroem
Priority to AU20304/83A priority Critical patent/AU2030483A/en
Publication of WO1984000881A1 publication Critical patent/WO1984000881A1/en

Links

Classifications

    • 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
    • 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
    • A61F2002/805—Suction sockets, i.e. utilizing differential air pressure to retain the prosthesis on the stump having an air valve

Definitions

  • This invention relates to a valve for artificial limbs, which are retained in place by partial vacuum.
  • Such valves are known previously and located in the artificial limb in order at the application of the artificial limb on an amputated limb to permit the air in the artificial limb beneath the limb to pene ⁇ trate out and thereafter to maintain the partial vac ⁇ uum within the artificial limb required for retaining the same.
  • the present invention therefore, has the object to eliminate this problem and, more precisely, to provide an artificial limb valve of such a nature as to render possible continuous ventilation of the artificial limb without causing loss of the partial vacuum required for retaining the artificial limb.
  • valve according to the present invention has the characterizing features defined in the attached claims.
  • Fig. 1 is a schematic and partially sect ⁇ ional view of an artificial leg provided with a valve according to the invention
  • Fig. 2 is an axial section through the valve proper
  • Fig. 3 is a section along the line III-III in Fig. 2.
  • A designates an artificial limb, which is shown to be an artificial leg for a left leg amput ⁇ ated above the knee.
  • the artificial limb is designed
  • OMPI - with a hollow shank portion B the internal shape of which corresponds to the shape of the limb, i.e. in the present example the leg, for which the artificial limb is intended, and into which the leg is pressed down for applying the artificial limb.
  • the air within the hollow shank portion B is pressed out through an opening C in the lower portion of the shank B of the artificial limb, whereby a partial vacuum is obtained which is suffici ⁇ ent for retaining the artificial limb A on the leg.
  • the artific ⁇ ial limb A is provided in the opening C with a valve 1 according to the invention, which valve is attached detachably, for example screwn, in the opening G.
  • the valve 1 comprises a sleeve-shaped valve body 6 with external thread 7 for securing the valve in the opening C of the artificial limb and an external supporting flange 8 for abutting the outer surface of the artific ⁇ ial limb when the valve is applied, further a valve cone 10 assembled of a sealing portion 9 and a controls portion 3, which cone by a shaft 11 connecting the sealing portion 9 and control portion 3 relative to each other extends through an annular seat portion 12 in the valve body 6, which seat portion has an inner diameter smaller than the valve body in general ' and includes in its inward facing surface 14 a number of diametrically formed depressions 13-
  • the seat portion 12 owing to its confifuration also serves as a slide guide for the shaft 11 of the valve cone.
  • O ⁇ '.PI ar seat portion, so that air is prevented from passing through the valve 1 in either direction.
  • the present valve further comprises a valve ball 4, which with accurately adjusted clearance is freely mov ⁇ able in a substantially cylindric space 16 in the valve cone 10.
  • This space which has a diameter exceeding on ⁇ ly slightly the diameter of the- ' valve, ball 4, communic ⁇ ates with the outer surface of the valve, i.e. the atm ⁇ osphere, through a passageway 17 formed in the valve cone 10, more precisely in the control portion 3 there ⁇ of, and with the inside of the valve, i.e. with the space D of the artificial limb beneath the leg, through a passageway 18 formed in the valve cone 10, more prec ⁇ isely in the sealing portion 9 and shaft 11 thereof, which passageway aligns with the passageway 17.
  • a seat 19 and, respectively, 20 for the valve ball 4 are formed, which seats are located at a distance from each other which is only slightly greater than the diameter of the valve " ball and between which seats the valve ball 4 can move -freely in its space 16 to be caused to seal against either the seat 19 or against the seat 20.
  • the valve 1 operates as follows. At the application of the artificial limb A the control portion 3 of the valve is held depressed manually at the same time as the artificial limb A is pressed onto the leg, whereafter the valve 1 is closed by releasing the control portion 3, whereby the sealing portion 9 is moved by the spring 2 to sealing abutment - — - - *»
  • valve 1 during the pressing of the artificial limb on the leg is open, the air in front of the leg in the artificial limb is pressed out through the valve, and the partial vacuum thereby arising within the artificial limb A is fully sufficient to retain the artificial limb A in place.
  • valve ball 4 automatically is caused to seal against its seat 20 and the partial vacuum is maintained in the space D in the artificial limb A.
  • a pulsating pressure .within the space D of the artificial limb arises, i.e. a pressure which in ⁇ creases when the artificial leg is loaded and which decreases when the artificial leg is relieved.
  • valve ball 4 When the pressure in the space D increases, the valve ball 4 is moved to abut its seat 19, and during this move ⁇ ment of the valve ball a small amount of air is permitt ⁇ ed to flow out from the space, and when the artificial leg then is relieved, the pressure in the space D of the artifical limb again drops, whereby the valve ball 4 is returned to its seat 20 and seals against the same. During this movement of the valve ball 4 a small amount of fresh air is sucked into the space of the artificial limb.
  • the valve ball 4 in response to pressure variations arising in the space D of the artificial limb will seal alternatingly against its seats 19 and 20, whereby a certai ' ventil ⁇ ation of the space D in the artificial limb is obtained, or with other words, the leg enclosed in the artificial limb is given the opportunity of breathing.
  • the amount of air permitted to flow out from and, respectively, into the space D is determined by the clearance for the valve ball in its space, and this clearance is ad- justed so that the amount of air permitted to flow past the valve ball 4 is not greater than required for maint ⁇ aining the partial vacuum necessary for retaining the artificial limb.
  • This breathing rendered possible by the valve according to the present invention is suffic ⁇ ient for preventing suction sores,, from which carriers of artificial limbs so often suffer.

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

A valve for an artificial limb, which is retained in place by partial vacuum, comprising a valve body (6) fastened in the artificial limb and a valve cone (10) located in the valve body for discharging air from the artificial limb (A) at the application of the same. In order to prevent suction sores, from which carriers of artificial limbs retained by partial vacuum often suffer, in the valve cone (10) of the valve a valve member (4) is provided, which communicates both with the inside and outside of the valve, and which in response to pressure variations on the inside (D) of the valve moves between two seats (19, 20) located relatively close to each other in a space (16) adjusted in respect of the size of the valve member for air exchange of the space of the artificial limb inside of the valve.

Description

Artificial limb valve
This invention relates to a valve for artificial limbs, which are retained in place by partial vacuum. Such valves are known previously and located in the artificial limb in order at the application of the artificial limb on an amputated limb to permit the air in the artificial limb beneath the limb to pene¬ trate out and thereafter to maintain the partial vac¬ uum within the artificial limb required for retaining the same.
It was found, however, that retaining of artificial limbs by means of partial vacuum involves poroblems for the artificial limb carriers, in that they often suffer from suction sores, which can be so tiring that it is a torment to carry the artificial limb.
The present invention, therefore, has the object to eliminate this problem and, more precisely, to provide an artificial limb valve of such a nature as to render possible continuous ventilation of the artificial limb without causing loss of the partial vacuum required for retaining the artificial limb.
This object is achieved in that the valve according to the present invention has the characterizing features defined in the attached claims.
The present invention is described in greater detail in the following with reference to the accompanying draw¬ ing, in which Fig. 1 is a schematic and partially sect¬ ional view of an artificial leg provided with a valve according to the invention, Fig. 2 is an axial section through the valve proper, and Fig. 3 is a section along the line III-III in Fig. 2.
In the drawing, A designates an artificial limb, which is shown to be an artificial leg for a left leg amput¬ ated above the knee. The artificial limb is designed
OMPI - with a hollow shank portion B, the internal shape of which corresponds to the shape of the limb, i.e. in the present example the leg, for which the artificial limb is intended, and into which the leg is pressed down for applying the artificial limb. When the artificial limb is pressed onto the leg, the air within the hollow shank portion B is pressed out through an opening C in the lower portion of the shank B of the artificial limb, whereby a partial vacuum is obtained which is suffici¬ ent for retaining the artificial limb A on the leg.
In order to maintain this partial vacuum, the artific¬ ial limb A is provided in the opening C with a valve 1 according to the invention, which valve is attached detachably, for example screwn, in the opening G. The valve 1 comprises a sleeve-shaped valve body 6 with external thread 7 for securing the valve in the opening C of the artificial limb and an external supporting flange 8 for abutting the outer surface of the artific¬ ial limb when the valve is applied, further a valve cone 10 assembled of a sealing portion 9 and a controls portion 3, which cone by a shaft 11 connecting the sealing portion 9 and control portion 3 relative to each other extends through an annular seat portion 12 in the valve body 6, which seat portion has an inner diameter smaller than the valve body in general' and includes in its inward facing surface 14 a number of diametrically formed depressions 13- The seat portion 12 owing to its confifuration also serves as a slide guide for the shaft 11 of the valve cone.
Between the seat portion 12 and control portion 3, which at the embodiment shown in the drawing is screwn onto the shaft 11 formed integral with the sealing portion 9, a compression spring 2 is clamped, which holds the sealing portion 9 provided with an annular sealing member 15 in sealing abutment to one side of the annul-
OΛ'.PI ar seat portion, so that air is prevented from passing through the valve 1 in either direction. By actuating the control portion 3 of the valve, for example manually, with a force exceeding the force exercized by the spring 2, the sealing portion is moved from its seat, and air is allowed to pass through the valve in both directi¬ ons.
The present valve further comprises a valve ball 4, which with accurately adjusted clearance is freely mov¬ able in a substantially cylindric space 16 in the valve cone 10. This space, which has a diameter exceeding on¬ ly slightly the diameter of the-'valve, ball 4, communic¬ ates with the outer surface of the valve, i.e. the atm¬ osphere, through a passageway 17 formed in the valve cone 10, more precisely in the control portion 3 there¬ of, and with the inside of the valve, i.e. with the space D of the artificial limb beneath the leg, through a passageway 18 formed in the valve cone 10, more prec¬ isely in the sealing portion 9 and shaft 11 thereof, which passageway aligns with the passageway 17. About this passageway and about the passageway 18, in the opposed sides of the space a seat 19 and, respectively, 20 for the valve ball 4 are formed, which seats are located at a distance from each other which is only slightly greater than the diameter of the valve"ball and between which seats the valve ball 4 can move -freely in its space 16 to be caused to seal against either the seat 19 or against the seat 20.
The valve 1 according to the present invention operates as follows. At the application of the artificial limb A the control portion 3 of the valve is held depressed manually at the same time as the artificial limb A is pressed onto the leg, whereafter the valve 1 is closed by releasing the control portion 3, whereby the sealing portion 9 is moved by the spring 2 to sealing abutment - — - - *»
to its seat surface on seat portion 12 of the valve body. Due to the fact that the valve 1 during the pressing of the artificial limb on the leg is open, the air in front of the leg in the artificial limb is pressed out through the valve, and the partial vacuum thereby arising within the artificial limb A is fully sufficient to retain the artificial limb A in place.
As soon as this partial vacuum arises, the valve ball 4 automatically is caused to seal against its seat 20 and the partial vacuum is maintained in the space D in the artificial limb A. When the artificial limb carr¬ ier moves, a pulsating pressure .within the space D of the artificial limb arises, i.e. a pressure which in¬ creases when the artificial leg is loaded and which decreases when the artificial leg is relieved. When the pressure in the space D increases, the valve ball 4 is moved to abut its seat 19, and during this move¬ ment of the valve ball a small amount of air is permitt¬ ed to flow out from the space, and when the artificial leg then is relieved, the pressure in the space D of the artifical limb again drops, whereby the valve ball 4 is returned to its seat 20 and seals against the same. During this movement of the valve ball 4 a small amount of fresh air is sucked into the space of the artificial limb. With other words, the valve ball 4 in response to pressure variations arising in the space D of the artificial limb will seal alternatingly against its seats 19 and 20, whereby a certai 'ventil¬ ation of the space D in the artificial limb is obtained, or with other words, the leg enclosed in the artificial limb is given the opportunity of breathing. The amount of air permitted to flow out from and, respectively, into the space D is determined by the clearance for the valve ball in its space, and this clearance is ad- justed so that the amount of air permitted to flow past the valve ball 4 is not greater than required for maint¬ aining the partial vacuum necessary for retaining the artificial limb. This breathing rendered possible by the valve according to the present invention is suffic¬ ient for preventing suction sores,, from which carriers of artificial limbs so often suffer.
OMPI
VifO

Claims

Claims
1. A valve for an artificial limb retained in place by partial vacuum, comprising a valve body (6) fasten¬ ed in the artificial limb and a valve cone (10) located in said valve body for discharging air from the artific¬ ial limb (A) at the application thereof, c h a r a c t¬ e r i z e d i n that in the valve cone (10) of the valve a valve member (4) is located, which communicates both with the inside and outside of the valve and in response to pressure variations on the inside (D) of the valve moves between two seats(19,20) located rel¬ atively close to each other in* a -space (16) adjusted in respect of the size of the valve member for air ex¬ change of the space of the artificial limb inside of the valve.
2. A valve as defined in claim 1, c h a r a c t e r ¬ i z e d i n that the valve member has the shape of a ball (4), and that its two seats (19.20) are located at a distance from each other which is only slightly greater than the diameter of the ball.
3- A valve as defined in claim 2, c h a r a c t e r ¬ i z e d i n that the space (lβ), in which the ball- -shaped valve member (4) is located, is cylindric with a diameter only slightly greater than that of the ball.
4. A valve as defined in any one of the preceding claims, c h a r a c t e r i z e d i n that the connection between the valve member (4) and the inside and outside of the valve consists of passageways (17, 18), which are located in the valve cone (10) aligning with each other, which passageways open concentrically in relation each to 'its seat (19,20) in the space (Iβ) of the valve member.
5. A valve as defined in any one of the preceding claims, c h a r a c t e r i z e d i n that the valve cone (10) movable in the valve body, in which cone the valve member (4) is located, consists of a*.-, sealing portion (9).sealing against an annular valve seat (12) in the valve body and of a control portion (3) connected to the sealing portion (9) and actuat¬ ed by a spring (2) for maintaining the sealing portion (9) in abutment to its seat (12).
6. A valve as defined in claim 5. c h a r a c t e r ¬ i z e d i n that the control portion (3) of the valve cone is detachably connected to the sealing portion (9) of the valve cone, and that the space (lβ) of the valve member is formed in the portions of said portions facing to each other.
PCT/SE1983/000318 1982-09-10 1983-09-09 Artificial limb valve WO1984000881A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU20304/83A AU2030483A (en) 1982-09-10 1983-09-09 Protesventil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8205167A SE445968B (en) 1982-09-10 1982-09-10 VALVE FOR SUGAR PROTES

Publications (1)

Publication Number Publication Date
WO1984000881A1 true WO1984000881A1 (en) 1984-03-15

Family

ID=20347795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1983/000318 WO1984000881A1 (en) 1982-09-10 1983-09-09 Artificial limb valve

Country Status (3)

Country Link
EP (1) EP0119231A1 (en)
SE (1) SE445968B (en)
WO (1) WO1984000881A1 (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363654A2 (en) * 1988-09-28 1990-04-18 Martti J.O. Filppula Prosthesis
US5490537A (en) * 1993-04-01 1996-02-13 Hill; David A. Prosthesis air valve assembly and tool therefor
US5702489A (en) * 1995-08-18 1997-12-30 Materials Engineering And Development, Inc. Valve assembly for a prosthetic limb
AU689725B2 (en) * 1995-08-23 1998-04-02 Milianku, Kristine Improvement to a protective item for supporting an appendage
US5888217A (en) * 1995-07-19 1999-03-30 Materials Engineering And Development, Inc. Modular interface connector for a prosthetic limb
US5980577A (en) * 1997-05-01 1999-11-09 Radis; Vasilis Protective item supporting an appendage
US6287345B1 (en) 1995-08-18 2001-09-11 The Ohio Willow Wood Company Valve assembly for a prosthetic limb
US6726726B2 (en) 1999-06-03 2004-04-27 Otto Bock Healthcare Lp Vacuum apparatus and method for managing residual limb volume in an artificial limb
US7744653B2 (en) 2004-04-22 2010-06-29 Otto Bock Healthcare Lp Vacuum pump with shock absorption and controlled rotation for prosthetic devices
US8113235B2 (en) 2008-10-03 2012-02-14 David Robert Bogue Apparatus and methods for facilitating prosthesis donning, doffing, retention, and fit
WO2013079202A1 (en) * 2011-11-29 2013-06-06 Otto Bock Healthcare Gmbh Device and prosthesis system
US8568489B2 (en) 2007-08-01 2013-10-29 Otto Bock Healthcare Lp Vacuum pump for a prosthetic device
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
US9408725B2 (en) 2013-07-03 2016-08-09 Ossur Hf Prosthetic pin locking mechanism with vacuum tunnels
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
US10179055B2 (en) 2015-05-29 2019-01-15 Ossur Iceland Ehf Pump system for use with a prosthetic device
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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10842653B2 (en) 2007-09-19 2020-11-24 Ability Dynamics, Llc Vacuum system for a prosthetic foot

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE650858C (en) * 1935-02-13 1937-10-02 Weber & Greissinger Valve for artificial limbs with a sleeve to be attached to the stump by suction
DE746781C (en) * 1942-01-29 1944-08-23 Heinrich Brandenbergs Automatic ventilation valve for artificial limbs
US2696011A (en) * 1951-06-01 1954-12-07 John J Galdik Artificial leg with suction socket
DE2729800A1 (en) * 1977-07-01 1979-01-04 Walter Dr Med Surerus Knee joint prosthesis pressure chamber for stump - incorporates pneumatic ring and double valve system including pump connection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE650858C (en) * 1935-02-13 1937-10-02 Weber & Greissinger Valve for artificial limbs with a sleeve to be attached to the stump by suction
DE746781C (en) * 1942-01-29 1944-08-23 Heinrich Brandenbergs Automatic ventilation valve for artificial limbs
US2696011A (en) * 1951-06-01 1954-12-07 John J Galdik Artificial leg with suction socket
DE2729800A1 (en) * 1977-07-01 1979-01-04 Walter Dr Med Surerus Knee joint prosthesis pressure chamber for stump - incorporates pneumatic ring and double valve system including pump connection

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363654A3 (en) * 1988-09-28 1991-03-06 Martti J.O. Filppula Prosthesis
EP0363654A2 (en) * 1988-09-28 1990-04-18 Martti J.O. Filppula Prosthesis
US5490537A (en) * 1993-04-01 1996-02-13 Hill; David A. Prosthesis air valve assembly and tool therefor
US5888217A (en) * 1995-07-19 1999-03-30 Materials Engineering And Development, Inc. Modular interface connector for a prosthetic limb
US5702489A (en) * 1995-08-18 1997-12-30 Materials Engineering And Development, Inc. Valve assembly for a prosthetic limb
US6287345B1 (en) 1995-08-18 2001-09-11 The Ohio Willow Wood Company Valve assembly for a prosthetic limb
AU689725B2 (en) * 1995-08-23 1998-04-02 Milianku, Kristine Improvement to a protective item for supporting an appendage
US5980577A (en) * 1997-05-01 1999-11-09 Radis; Vasilis Protective item supporting an appendage
US6726726B2 (en) 1999-06-03 2004-04-27 Otto Bock Healthcare Lp Vacuum apparatus and method for managing residual limb volume in an artificial limb
US7744653B2 (en) 2004-04-22 2010-06-29 Otto Bock Healthcare Lp Vacuum pump with shock absorption and controlled rotation for prosthetic devices
US8568489B2 (en) 2007-08-01 2013-10-29 Otto Bock Healthcare Lp Vacuum pump for a prosthetic device
US8113235B2 (en) 2008-10-03 2012-02-14 David Robert Bogue Apparatus and methods for facilitating prosthesis donning, doffing, retention, and fit
US9615945B2 (en) 2011-11-29 2017-04-11 Otto Bock Healthcare Gmbh Prosthetic valve and vacuum adapter system
WO2013079202A1 (en) * 2011-11-29 2013-06-06 Otto Bock Healthcare Gmbh Device and prosthesis system
US10617537B2 (en) 2012-02-14 2020-04-14 Ossur Hf Vacuum assisted suspension system
US9198780B2 (en) 2012-02-14 2015-12-01 Ossur Hf Vacuum assisted suspension system
US9889025B2 (en) 2012-02-14 2018-02-13 Ossur Hf Vacuum assisted suspension system
US11141294B2 (en) 2012-04-30 2021-10-12 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US9486335B2 (en) 2012-04-30 2016-11-08 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US9615946B2 (en) 2012-04-30 2017-04-11 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US10369018B2 (en) 2012-04-30 2019-08-06 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US11058561B2 (en) 2012-04-30 2021-07-13 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US9044348B2 (en) 2012-04-30 2015-06-02 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US9072617B2 (en) 2012-04-30 2015-07-07 Ossur Hf Prosthetic device, system and method for increasing vacuum attachment
US9820873B2 (en) 2013-03-01 2017-11-21 Ossur Hf Vacuum suspension system
US9364348B2 (en) 2013-03-01 2016-06-14 Ossur Hf Vacuum suspension system
US9408725B2 (en) 2013-07-03 2016-08-09 Ossur Hf Prosthetic pin locking mechanism with vacuum tunnels
US9707107B2 (en) 2013-07-03 2017-07-18 Ossur Hf Prosthetic pin locking mechanism with vacuum tunnels
US10729568B2 (en) 2014-07-01 2020-08-04 Ossur Hf Pump mechanism for vacuum suspension system
US9757256B2 (en) 2014-07-01 2017-09-12 Ossur Hf Pump mechanism for vacuum suspension system
US11679012B2 (en) 2015-01-08 2023-06-20 Ossur Iceland Ehf Pump mechanism
US10695198B2 (en) 2015-01-08 2020-06-30 Ossur Iceland Ehf Pump mechanism
US10028845B2 (en) 2015-01-08 2018-07-24 Ossur Iceland Ehf Pump mechanism
US10561508B2 (en) 2015-05-21 2020-02-18 Ossur Iceland Ehf Vacuum pump system with heel pump for a prosthetic leg
US11246725B2 (en) 2015-05-21 2022-02-15 Ossur Iceland Ehf Pump system
US9943421B2 (en) 2015-05-21 2018-04-17 Ossur Iceland Ehf Membrane pump system for use with a prosthetic system
US10179055B2 (en) 2015-05-29 2019-01-15 Ossur Iceland Ehf Pump system for use with a prosthetic device
US10413429B2 (en) 2015-08-27 2019-09-17 Ossur Iceland Ehf Pump system
US11357647B2 (en) 2015-08-27 2022-06-14 Ossur Iceland Ehf Pump system
US11376139B2 (en) 2016-08-26 2022-07-05 Ossur Iceland Ehf Pump system
US10512554B2 (en) 2016-08-26 2019-12-24 Ossur Iceland Ehf Pump system
US12004972B2 (en) 2016-08-26 2024-06-11 Ossur Iceland Ehf Pump system

Also Published As

Publication number Publication date
SE445968B (en) 1986-08-04
EP0119231A1 (en) 1984-09-26
SE8205167D0 (en) 1982-09-10
SE8205167L (en) 1984-03-11

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