US3890650A - Artificial foot for leg prostheses - Google Patents

Artificial foot for leg prostheses Download PDF

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Publication number
US3890650A
US3890650A US494277A US49427774A US3890650A US 3890650 A US3890650 A US 3890650A US 494277 A US494277 A US 494277A US 49427774 A US49427774 A US 49427774A US 3890650 A US3890650 A US 3890650A
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Prior art keywords
foot
base plate
metallic base
artificial
tab
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Expired - Lifetime
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US494277A
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Jan Prahl
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IPOS GmbH and Co KG
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IPOS GmbH and Co KG
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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
    • 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
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • 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
    • A61F2002/5007—Prostheses not implantable in the body having elastic means different from springs, e.g. including an elastomeric insert
    • 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
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2002/6614—Feet
    • A61F2002/6657—Feet having a plate-like or strip-like spring element, e.g. an energy-storing cantilever spring keel

Definitions

  • the foot and the functional characteristics of the same are of considerable importance.
  • the foot must allow the amputated patient to tread on the ground with a maximum of dampening. in simultaneously providing a rigid linkage for the prothesis and maintaining, during walking, the highest possible degree of resiliency of the rolling motion resistance.
  • an artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses is characterized by a metallic base plate disposed in the area of the sole of the foot within the foamed foot member, a forwardly extending portion of the metallic base plate defining a downwardly depending offset portion, the configuration of the offset portion of the base plate adapted to the roll-off motion of the ball of the foot, the offset portion secured to a forefoot core made of a homogeneous plastic material, the configuration of the forefoot core corresponding to the shape of the point of the foot, and a rearwardly extending portion of the metallic base plate supported by a portion of a tab made of a homogeneous plastic material, the tab being disposed within the heel portion of the foot.
  • a recess is provided in a rearward portion of the foot and extends from the top surface of the artificial foot down to the upper surface of the metallic base plate and adapted to receive articulation and attachment members.
  • the drawing illustrates a longitudinal vertical sectional view of an artificial foot in accordance with a preferred embodiment of the present invention.
  • a metallic base plate 10 is provided in the area of the sole of the foot.
  • the metallic base plate 10 is adapted to the configuration of the sole of the foot within the area of the ball of the foot 12 by means of a downwardly depending offset portion 11.
  • the offset portion 11 allows to perform the rolling motion functions of the foot within a transverse sectional area located substantially in a region intermediate a first and a second third at the forward end of the foot when assuming the foot to be subdivided, along its length, into three longitudinal portions of approximately equal lengths.
  • This transverse area is predetermined by nature itself and substantially coincides with the line of articulation of the toes.
  • a forefoot core 14 made of a homogeneous elastomer material is prevulcanized to the downwardly depending offset portion 11 of the base plate 10.
  • the lower boundary of the forefoot core 14 corresponds to the outer configuration of the ball of the foot.
  • This forefoot core 14 is of a nonfoamed structure and is perfectly resistant to aging. Therefore the rolling motion resistance may be predetermined and will not alter during extended periods of time.
  • a tab is likewise made of a homogeneous elastomer material is prevulcanized to the metallic base plate 10 and forms a reinforcement member.
  • the thus formed functional core of the foot comprising the metallic base plate 10, the forefoot core 14 and the tab 15 may be readily adapted to any size of foot and to different heel heights.
  • the actual foot body 16 is integrally foamed of a cellular material about the functional foot core, in order to preserve a low weight of the foot.
  • a recess 17 may be provided within a rearward portion of the artificial foot. This recess 17 may extend from the top surface of the foot body down to the upper surface of the metallic base plate 10 and allows to threadedly attach articulation and attachment members directly to the metallic base plate 10.
  • An artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses characterized by a metallic base plate disposed in the area of the sole of the foot within the foamed foot member, a forwardly extending portion of said metallic base plate defining a downwardly depending offset portion, the configuration of said offset portion of said base plate adapted to the roll-off motion of the ball of the foot, said offset portion secured to a forefoot core made of a homogeneous plastic material, the configuration of said forefoot core corresponding to the shape of the point of the foot, and a rearwardly extending portion of said metallic base plate supported by a portion of a tab made of a homogeneous plastic material, said tab being disposed within the heel portion of the foot.
  • An artificial foot as in claim I further characterized by a recess in a rearward portion of the foot, said recess extending from the top surface of said artificial foot down to the upper surface of the metallic base plate and adapted to receive articulation and attachment members.

Abstract

An artificial foot made of synthetic materials with an integrally cast metallic base plate having a forward downwardly depending offset portion of a unique configuration, the rear end of the base plate being supported by a tab.

Description

United States Patent Prahl June 24, 1975 [54] ARTIFICIAL FOOT FOR LEG PROSTHESES 1,219,374 3/1917 Carrico 3/7 5] Inventor: Jan rah uneburg, Germ y 3,484,871 12/1969 Orange 3/7 [73] Assignee: Ipos Gesellschalt fur Integrierte FOREIGN PATENTS OR APPLICATIONS Proihesenemwicklung 137,843 7 1959 U.S.S.R 3/6 Orthopadietechnischen Service m.b.H. & Co. K.G., Germany Primary Examiner-Ronald L. Frinks [22] Flled' 1974 Attorney, Agent, or Firm-Toren, McGeady and [211 Appl. No.: 494,277 Stanger {30] Foreign Application Priority Data Aug. 18, 1973 Germany 2341887 71571 ABSTRACT [52] U 8 Cl 3/7 An artificial foot made of synthetic materials with an [51] I08 integrally cast metallic base plate having a forward downwardly depending offset portion of a unique com [58] Field of Search 3/6-8, 2 figuration the rear end of the base plate being p [56] References Cited ported by a 464 356 ZIST PATENTS 3/7 X 4 Claims, 1 Drawing Figure ARTIFICIAL FOOT FOR LEG PROSTHESES The present invention relates to an artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses.
In the operational behaviour of a leg prothesis, the foot and the functional characteristics of the same are of considerable importance. The foot must allow the amputated patient to tread on the ground with a maximum of dampening. in simultaneously providing a rigid linkage for the prothesis and maintaining, during walking, the highest possible degree of resiliency of the rolling motion resistance.
For quite some time have been known artificial feet made of felt and rubber, with a wooden reinforcement. In the course of development, artificial feet of this type have been replaced by artificial feet made of resilient plastic or synthetic materials. The preferred materials employed have been foamed polyurethanes that were advantageous because of their low weight. The foot functions were provided by adhesively bonding several foamed materials of different hardness. The connecting element for connecting the foot with the prosthetic leg member was as before manufactured of wood. There has also been proposed to provide aluminium plates as connecting members for attachment to the highly resiiient foam at the sole of the foot. These proposals, however, encountered difficulties since the prior art aluminium plates were not adapted properly to the foot function.
Heretofore known artificial feet were unsatisfactory because of the insufficient aging resistance of adhesively bonded foam materials, the humidity absorption properties ofthe wooden core and the unfavorable rolloff motion function of the molded-in aluminium plates whereby this function was delimited in a central region of the foot.
It is now the object of the present invention to provide an artificial foot for leg prostheses in which the above pointed out drawbacks are eliminated and the full operational functions of the foot are providedv For achieving this object, there is now proposed, in accordance with the present invention, an artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses, and this artificial foot is characterized by a metallic base plate disposed in the area of the sole of the foot within the foamed foot member, a forwardly extending portion of the metallic base plate defining a downwardly depending offset portion, the configuration of the offset portion of the base plate adapted to the roll-off motion of the ball of the foot, the offset portion secured to a forefoot core made of a homogeneous plastic material, the configuration of the forefoot core corresponding to the shape of the point of the foot, and a rearwardly extending portion of the metallic base plate supported by a portion of a tab made of a homogeneous plastic material, the tab being disposed within the heel portion of the foot.
According to another characteristic of the present invention, a recess is provided in a rearward portion of the foot and extends from the top surface of the artificial foot down to the upper surface of the metallic base plate and adapted to receive articulation and attachment members.
The drawing illustrates a longitudinal vertical sectional view of an artificial foot in accordance with a preferred embodiment of the present invention.
A metallic base plate 10 is provided in the area of the sole of the foot. The metallic base plate 10 is adapted to the configuration of the sole of the foot within the area of the ball of the foot 12 by means of a downwardly depending offset portion 11. The offset portion 11 allows to perform the rolling motion functions of the foot within a transverse sectional area located substantially in a region intermediate a first and a second third at the forward end of the foot when assuming the foot to be subdivided, along its length, into three longitudinal portions of approximately equal lengths. This transverse area is predetermined by nature itself and substantially coincides with the line of articulation of the toes. To adapt the rolling motion resistance of the artificial foot to the natural foot function, a forefoot core 14 made of a homogeneous elastomer material is prevulcanized to the downwardly depending offset portion 11 of the base plate 10. The lower boundary of the forefoot core 14 corresponds to the outer configuration of the ball of the foot. This forefoot core 14 is of a nonfoamed structure and is perfectly resistant to aging. Therefore the rolling motion resistance may be predetermined and will not alter during extended periods of time. Within the heel portion of the artificial foot, a tab is likewise made of a homogeneous elastomer material is prevulcanized to the metallic base plate 10 and forms a reinforcement member. The thus formed functional core of the foot comprising the metallic base plate 10, the forefoot core 14 and the tab 15 may be readily adapted to any size of foot and to different heel heights.
The actual foot body 16 is integrally foamed of a cellular material about the functional foot core, in order to preserve a low weight of the foot. A recess 17 may be provided within a rearward portion of the artificial foot. This recess 17 may extend from the top surface of the foot body down to the upper surface of the metallic base plate 10 and allows to threadedly attach articulation and attachment members directly to the metallic base plate 10.
What is claimed is:
1. An artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses, characterized by a metallic base plate disposed in the area of the sole of the foot within the foamed foot member, a forwardly extending portion of said metallic base plate defining a downwardly depending offset portion, the configuration of said offset portion of said base plate adapted to the roll-off motion of the ball of the foot, said offset portion secured to a forefoot core made of a homogeneous plastic material, the configuration of said forefoot core corresponding to the shape of the point of the foot, and a rearwardly extending portion of said metallic base plate supported by a portion of a tab made of a homogeneous plastic material, said tab being disposed within the heel portion of the foot.
2. An artificial foot as in claim I, further characterized by a recess in a rearward portion of the foot, said recess extending from the top surface of said artificial foot down to the upper surface of the metallic base plate and adapted to receive articulation and attachment members.
3. An artificial foot as in claim 2, further characterized in that said forefoot core and said tab are made of a homogeneous elastomer material.
4. An artificial foot as in claim 3, further characterized in that the foot body is integrally foamed ofa cellular resilient material about the functional core of the foot consisting of said metallic base plate, said forefoot core and said tab.

Claims (4)

1. An artificial foot made of foamed synthetic materials that are foamed within a mold, for leg prostheses, characterized by a metallic base plate disposed in the area of the sole of the foot within the foamed foot member, a forwardly extending portion of said metallic base plate defining a downwardly depending offset portion, the configuration of said offset portion of said base plate adapted to the roll-off motion of the ball of the foot, said offset portion secured to a forefoot core made of a homogeneous plastic material, the configuration of said forefoot core corresponding to the shape of the point of the foot, and a rearwardly extending portion of said metallic base plate supported by a portion of a tab made of a homogeneous plastic material, said tab being disposed within the heel portion of the foot.
2. An artificial foot as in claim 1, further characterized by a recess in a rearward portion of the foot, said recess extending from the top surface of said artificial foot down to the upper surface of the metallic base plate and adapted to receive articulation and attachment members.
3. An artificial foot as in claim 2, further characterized in that said forefoot core and said tab are made of a homogeneous elastomer material.
4. An artificial foot as in claim 3, further characterized in that the foot body is integrally foamed of a cellular resilient material about the functional core of the foot consisting of said metallic base plate, said forefoot core and said tab.
US494277A 1973-08-18 1974-08-02 Artificial foot for leg prostheses Expired - Lifetime US3890650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2341887A DE2341887C3 (en) 1973-08-18 1973-08-18 Artificial foot for a prosthetic leg

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US3890650A true US3890650A (en) 1975-06-24

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US494277A Expired - Lifetime US3890650A (en) 1973-08-18 1974-08-02 Artificial foot for leg prostheses

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DE (1) DE2341887C3 (en)
FR (1) FR2240713B3 (en)
GB (1) GB1469982A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089072A (en) * 1975-07-18 1978-05-16 Otto Bock Orthopadische Industrie K.G. Prosthetic appliance
US4177525A (en) * 1977-11-09 1979-12-11 Ohio Willow Wood Co., Inc. Reinforced artificial foot and method of making
US4225982A (en) * 1978-12-04 1980-10-07 Cochrane Ian W Molded syme foot with attached stump socket
US4645509A (en) * 1984-06-11 1987-02-24 Model & Instrument Development Corporation Prosthetic foot having a cantilever spring keel
US4892553A (en) * 1988-03-29 1990-01-09 Ipos Gmbh & Co, Kg Artificial foot for a leg prosthesis
US5007938A (en) * 1989-07-08 1991-04-16 Ipos Gmbh & Co. Kg Artificial foot for a leg prosthesis
US5037444A (en) * 1989-01-05 1991-08-06 Phillips L Van Prosthetic foot
US5066305A (en) * 1988-10-25 1991-11-19 Model & Instrument Development Corporation Prosthetic foot having a low profile cantilever spring keel
US5181932A (en) * 1989-04-13 1993-01-26 Phillips L Van Foot prosthesis having auxiliary ankle construction
US5458656A (en) * 1991-09-30 1995-10-17 Flex-Foot Energy-storing prosthesis leg pylon vertical shock leg
US5509938A (en) * 1991-02-28 1996-04-23 Phillips; Van L. Prosthetic foot incorporating adjustable bladder
US5514185A (en) * 1991-02-28 1996-05-07 Phillips; Van L. Split foot prosthesis
US5549714A (en) * 1990-09-21 1996-08-27 Phillips; Van L. Symes foot prosthesis
US6406500B1 (en) 1989-04-13 2002-06-18 Van L. Phillips Foot prosthesis having curved forefoot
US20020087216A1 (en) * 1996-02-16 2002-07-04 Atkinson Stewart L. Prosthetic walking system
US6443995B1 (en) 2000-12-22 2002-09-03 Barry W. Townsend Prosthetic foot
US20040199265A1 (en) * 2000-12-22 2004-10-07 Townsend Barry W. Prosthetic foot
US20040225376A1 (en) * 2000-12-22 2004-11-11 Townsend Barry W. Prosthetic foot
WO2007071993A2 (en) * 2005-12-20 2007-06-28 Robert John Watts Foot prosthesis
US20080004719A1 (en) * 2006-07-03 2008-01-03 Sigurdur Asgeirsson Prosthetic foot
US20100042228A1 (en) * 2008-08-18 2010-02-18 The Ohio Willow Wood Company Prosthetic foot
JP2017517313A (en) * 2014-05-09 2017-06-29 オットー・ボック・ヘルスケア・ゲーエムベーハーＯｔｔｏ Ｂｏｃｋ ＨｅａｌｔｈＣａｒｅ ＧｍｂＨ Artificial leg

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1305585C (en) * 1986-07-28 1992-07-28 Robert E. Arbogast Prosthetic foot
US4865612A (en) * 1986-07-28 1989-09-12 The Ohio Willow Wood Company, Inc. Prosthetic foot

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US464356A (en) * 1891-04-01 1891-12-01 Artificial limb
US1219374A (en) * 1916-10-25 1917-03-13 Walter Carrico Artificial foot.
US3484871A (en) * 1968-12-02 1969-12-23 John L Orange Artificial foot

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361972C (en) * 1922-10-20 Wilhelm Mull Artificial foot
DE354246C (en) * 1921-05-21 1922-06-06 Anton Leisten Artificial foot
US2556525A (en) * 1949-10-08 1951-06-12 William M Drennon Artificial limb joint
US3335428A (en) * 1964-11-02 1967-08-15 Goodrich Co B F Resilient prosthetic foot made from elastic polymers of different hardness
DE1998183U (en) * 1965-11-29 1968-12-12 Teufel Wilh Jul Fa ARTIFICIAL FOOT FOR LEG PROSTHESES.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US464356A (en) * 1891-04-01 1891-12-01 Artificial limb
US1219374A (en) * 1916-10-25 1917-03-13 Walter Carrico Artificial foot.
US3484871A (en) * 1968-12-02 1969-12-23 John L Orange Artificial foot

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089072A (en) * 1975-07-18 1978-05-16 Otto Bock Orthopadische Industrie K.G. Prosthetic appliance
US4177525A (en) * 1977-11-09 1979-12-11 Ohio Willow Wood Co., Inc. Reinforced artificial foot and method of making
US4225982A (en) * 1978-12-04 1980-10-07 Cochrane Ian W Molded syme foot with attached stump socket
US4645509A (en) * 1984-06-11 1987-02-24 Model & Instrument Development Corporation Prosthetic foot having a cantilever spring keel
US4892553A (en) * 1988-03-29 1990-01-09 Ipos Gmbh & Co, Kg Artificial foot for a leg prosthesis
US5066305A (en) * 1988-10-25 1991-11-19 Model & Instrument Development Corporation Prosthetic foot having a low profile cantilever spring keel
US5037444A (en) * 1989-01-05 1991-08-06 Phillips L Van Prosthetic foot
US5181932A (en) * 1989-04-13 1993-01-26 Phillips L Van Foot prosthesis having auxiliary ankle construction
US5486209A (en) * 1989-04-13 1996-01-23 Phillips; Van L. Foot prosthesis having auxiliary ankle construction
US5593457A (en) * 1989-04-13 1997-01-14 Phillips; Van L. Foot prosthesis having auxiliary ankle construction
US5976191A (en) * 1989-04-13 1999-11-02 Phillips; Van L. Foot prosthesis having curved forefoot
US6406500B1 (en) 1989-04-13 2002-06-18 Van L. Phillips Foot prosthesis having curved forefoot
US5007938A (en) * 1989-07-08 1991-04-16 Ipos Gmbh & Co. Kg Artificial foot for a leg prosthesis
US5549714A (en) * 1990-09-21 1996-08-27 Phillips; Van L. Symes foot prosthesis
US5509938A (en) * 1991-02-28 1996-04-23 Phillips; Van L. Prosthetic foot incorporating adjustable bladder
US5514185A (en) * 1991-02-28 1996-05-07 Phillips; Van L. Split foot prosthesis
US5458656A (en) * 1991-09-30 1995-10-17 Flex-Foot Energy-storing prosthesis leg pylon vertical shock leg
US20020087216A1 (en) * 1996-02-16 2002-07-04 Atkinson Stewart L. Prosthetic walking system
US6443995B1 (en) 2000-12-22 2002-09-03 Barry W. Townsend Prosthetic foot
US6743260B2 (en) 2000-12-22 2004-06-01 Barry W. Townsend Prosthetic foot
US20040199265A1 (en) * 2000-12-22 2004-10-07 Townsend Barry W. Prosthetic foot
US20040225376A1 (en) * 2000-12-22 2004-11-11 Townsend Barry W. Prosthetic foot
US6936074B2 (en) 2000-12-22 2005-08-30 Barry W. Townsend Prosthetic foot
US7108723B2 (en) 2000-12-22 2006-09-19 Townsend Barry W Prosthetic foot
WO2007071993A2 (en) * 2005-12-20 2007-06-28 Robert John Watts Foot prosthesis
WO2007071993A3 (en) * 2005-12-20 2007-08-23 Robert John Watts Foot prosthesis
US20090030531A1 (en) * 2006-07-03 2009-01-29 Sigurdur Asgeirsson Prosthetic foot
US20080004719A1 (en) * 2006-07-03 2008-01-03 Sigurdur Asgeirsson Prosthetic foot
US20090043403A1 (en) * 2006-07-03 2009-02-12 Sigurdur Asgeirsson Prosthetic foot
US7503937B2 (en) 2006-07-03 2009-03-17 Ossur Hf Prosthetic foot
US7771488B2 (en) 2006-07-03 2010-08-10 Ossur Hf Prosthetic foot
US8177855B2 (en) 2006-07-03 2012-05-15 Ossur Hf Prosthetic foot
US20100042228A1 (en) * 2008-08-18 2010-02-18 The Ohio Willow Wood Company Prosthetic foot
US8317877B2 (en) 2008-08-18 2012-11-27 The Ohio Willow Wood Company Prosthetic foot
US9351853B2 (en) 2008-08-18 2016-05-31 The Ohio Willow Wood Company Prosthetic foot
JP2017517313A (en) * 2014-05-09 2017-06-29 オットー・ボック・ヘルスケア・ゲーエムベーハーＯｔｔｏ Ｂｏｃｋ ＨｅａｌｔｈＣａｒｅ ＧｍｂＨ Artificial leg
US11039941B2 (en) 2014-05-09 2021-06-22 Ottobock Se & Co. Kgaa Prosthetic foot

Also Published As

Publication number Publication date
FR2240713B3 (en) 1977-06-10
GB1469982A (en) 1977-04-14
DE2341887A1 (en) 1975-02-27
FR2240713A1 (en) 1975-03-14
DE2341887C3 (en) 1981-04-30
DE2341887B2 (en) 1980-07-17

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