DE807214C - Prosthetic foot - Google Patents

Prosthetic foot

Info

Publication number
DE807214C
DE807214C DE1949807214D DE807214DA DE807214C DE 807214 C DE807214 C DE 807214C DE 1949807214 D DE1949807214 D DE 1949807214D DE 807214D A DE807214D A DE 807214DA DE 807214 C DE807214 C DE 807214C
Authority
DE
Germany
Prior art keywords
sole
prosthetic
hinge
spring
prosthetic foot
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.)
Expired
Application number
DE1949807214D
Other languages
German (de)
Inventor
Hans Langenohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE807214C publication Critical patent/DE807214C/en
Expired legal-status Critical Current

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
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • A61F2/6607—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
    • A61F2/60—Artificial legs or feet or parts thereof
    • A61F2/66—Feet; Ankle joints
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
    • C10G47/22—Non-catalytic cracking in the presence of hydrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
    • 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
    • A61F2002/5038—Hinged joint, e.g. with transverse axle restricting the movement
    • A61F2002/5039—Hinged joint, e.g. with transverse axle restricting the movement allowing only for single rotation
    • 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
    • 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

Description

Die Erfindung bezieht sich auf eine Fußprothese, die einen außerordentlich elastischen Auftritt gewährleistet und bei der infolge der gleichmäßigen Belastung die Ermüdungserscheinungen auf ein Mindestmaß herabgesetzt werden. Hierdurch wird der Beinstumpf besonders geschont, und es ist sogar möglich, bei Unterschenkelamputierten an Stelle des bisher verwendeten langen Oberschaftes nur eine kurze Manschette zu verwenden. The invention relates to a prosthetic foot that is extremely elastic appearance guaranteed and in the result of the even load the signs of fatigue are reduced to a minimum. This will the leg stump is particularly spared, and it is even possible for lower leg amputees instead of the long upper stock used up to now, only a short cuff is closed use.

Gemäß der Erfindung wird eine Blattfeder verwendet, die den gesamten Druck aufnimmt. Diese ist so gelagert, daß auch der vordere Teil der Fußprothese unter ihrem Einfluß steht und gelenkig gestaltet werden kann und daß ferner genügend Spiel für eine begrenzte Kippbewegung nach den Seiten hin verbleibt. According to the invention, a leaf spring is used, the entire Takes up pressure. This is positioned so that the front part of the prosthetic foot is also is under their influence and can be articulated and that, furthermore, sufficient There remains play for a limited tilting movement to the sides.

Die erfindungsgemäß verwendete Blattfeder ist gewölbt und besitzt zwischen ihrem vorderen, auf der Prothesensohle in der Längsrichtung frei beweglich aufliegenden Ende und ihrem hinteren, gegen die Prothesensohle überhöht abgestützten Ende ein Scharnier zur Befestigung des Knöchelstücks. The leaf spring used according to the invention is curved and has between its front, freely movable in the longitudinal direction on the prosthesis sole resting end and its rear, supported against the prosthesis sole excessively End of a hinge to attach the ankle piece.

Um eine seitliche Kippbewegung zu ermöglichen, wird für die Abstützung zwischen Federende und Sohle ein begrenzt schwenkbares Kugelgelenk verwendet, während zwischen Knöchelstück und Kugelgelenk ein Puffer gelagert wird, so daß das Knöchelstück unter Vermittlung des Puffers auf dem Kugelgelenk lose aufliegt. In order to enable a lateral tilting movement, is used for the support between the end of the spring and the sole a limited pivoting ball joint is used, while a buffer is stored between the ankle joint and the ball joint, so that the ankle joint rests loosely on the ball joint with the intermediary of the buffer.

Der Prothesenvorderteil ist mit dem Mittelstück gelenkig verbunden, so daß auch hierdurch ein reguläres Gehen mit der Prothese gewährleistet ist. The front part of the prosthesis is articulated to the middle part, so that this also ensures regular walking with the prosthesis.

Die Blattfeder besteht zweckmäßig aus mehreren Lagen, von denen aber nur eine bis zur Spitze durchgeht, während die anderen unter einer auf der Prothesensohle sitzenden Brücke hindurchgesteckt sind. Sämtliche Lagen werden durch eine unmittelbar neben dem Scharnier angeordnete Spange zusammengehalten. Zu dieser Ausführung besitzt die Feder die den ausgeübten Belastungen entsprechende Elastizität. The leaf spring expediently consists of several layers, but one of them only one goes through to the tip, while the other goes under one on the prosthetic sole seated bridge are pushed through. All layers are immediately clasp arranged next to the hinge held together. Owns to this version the spring has the elasticity corresponding to the loads exerted.

Der Erfindungsgegenstand ist auf der Zeichnung in einem Ausführungsbeispiel dargestellt, und zwar zeigt Fig. 1 einen Schnitt nach der Linie A-B der Fig. 2, Fig. 2 einen Schnitt nach der Linie C-D der Fig. 1. The subject of the invention is shown in the drawing in an exemplary embodiment shown, namely Fig. 1 shows a section along the line A-B of Fig. 2, FIG. 2 shows a section along the line C-D of FIG. 1.

Die Fußprothese besteht aus einem vorteilhaft aus Leichtmetall hergestellten Hohlkörper mit dem Fersen- oder Hinterteil I, dem Mittelteil 2 und dem Vorder- oder Zehenteil 3. Ferse I und Mittelteil 2 bestehen aus einem Stück, während der Zehenteil 3 mit dem Mittelteil 2 gelenkig verbunden ist. Diese gelenkige Verbindung erfolgt einerseits durch die unter die Prothesensohle 4 bzw. 4' geklebte Ledersohle 5, unter die dann noch eine Gummi sohle 6 geklebt werden kann. Andererseits ist der Vorderteil 3 mit Hilfe des Bolzens 7 und des Schlitzes 8 in dem Mittelteil 2 beweglich geführt. The prosthetic foot consists of an advantageously made of light metal Hollow body with the heel or rear part I, the middle part 2 and the front or Toe part 3. Heel I and middle part 2 consist of one piece, while the toe part 3 is articulated to the middle part 2. This articulated connection is made on the one hand by the leather sole 5 glued under the prosthesis sole 4 or 4 ', under which then a rubber sole 6 can be glued. The other hand is the front part 3 movably guided in the middle part 2 with the aid of the bolt 7 and the slot 8.

Der aus Leichtmetall bestehende Körper wird dann noch mit Leder überzogen. The light metal body is then covered with leather.

In diesem Hohlkörper liegt die aus mehreren Lagen g, IO, 11 und I2 bestehende Blattfeder. Die Lage g dieser Blattfeder geht als einzige bis zum Zehenstück durch. Die Lagen 9, Io und ii werden durch die Brücke I3, welche auf der Sohle 4 befestigt ist, niedergehalten. Im übrigen werden sämtliche Lagen g bis 12 durch die Spange 14 zusammengehalten. This hollow body consists of several layers g, IO, 11 and I2 existing leaf spring. The position g of this leaf spring is the only one up to the toe piece by. The layers 9, Io and ii are made by the bridge I3, which is on the sole 4 is attached, held down. In addition, all layers g to 12 are through the clasp 14 held together.

Diese Spange 14 sitzt unmittelbar neben dem Scharnier I5, dessen einer Teil fest auf der oberen Lage 12 der Blattfeder sitzt, während der andere Teil des Scharniers an dem Knöchelstück i6 befestigt ist. Beide Scharnierhälften werden durch den Scharnierbolzen 17 miteinander verbunden. Am äußersten Ende sind sämtliche Lagen der Blattfeder durch ein Kugelgelenk mit der Kugel i8 gegen die Sohle 4 abgestützt. Dieses Gelenk ist aber infolge der vorstehenden Kanten 19 nur begrenzt nach den Seiten hin kippbar. This clasp 14 sits immediately next to the hinge I5, whose one part sits firmly on the upper layer 12 of the leaf spring, while the other Part of the hinge is attached to the ankle piece i6. Both hinge halves are connected to one another by the hinge pin 17. At the very end are all positions of the leaf spring by a ball joint with the ball i8 against the Sole 4 supported. This joint is only 19 due to the protruding edges can be tilted to the sides to a limited extent.

Oberhalb dieses Kugelgelenks ist ein Gummipuffer 20 vorgesehen, welcher im Knöchelstück I6 sitzt. A rubber buffer 20 is provided above this ball joint, which sits in the ankle piece I6.

PATENTANSPRSCHE: I. Fußprothese mit aus Blattfeder bestehender Längsfederung, dadurch gekennzeichnet, daß die Blattfeder (9 bis I2) in der Längsrichtung gewölbt ist und zwischen ihrem vorderen, auf der Prothesensohle in der Längsrichtung frei beweglich aufliegendem Ende und ihrem hinteren, gegen die Prothesensohle überhöht abgestützten Ende ein Scharnier (I5) zur Befestigung des Knöchelstücks besitzt. PATENT CLAIMS: I. Foot prosthesis with longitudinal spring suspension consisting of leaf springs, characterized in that the leaf spring (9 to I2) is arched in the longitudinal direction is and between its front, free on the prosthetic sole in the longitudinal direction movable end and its rear, raised against the prosthesis sole supported end has a hinge (I5) for fastening the ankle piece.

Claims (1)

2. Fußprothese nach Anspruch I, dadurch gekennzeichnet, daß die Abstützung zwischen Federende und Sohle (4) durch ein begrenzt schwenkbares Kugelgelenk (I9) erfolgt und das Knöchelstück (I6) unter Zwischenlage eines Puffers (20) lose auf diesem Gelenk aufliegt. 2. prosthetic foot according to claim I, characterized in that the support between the end of the spring and the sole (4) by means of a limited pivoting ball joint (I9) takes place and the ankle piece (I6) loosely with the interposition of a buffer (20) this joint rests. 3. Fußprothese nach Anspruch I und 2, dadurch gekennzeichnet, daß die Feder aus mehreren Lagen (9 bis I2) besteht, von denen nur eine (g) bis zur Spitze durchläuft, während die anderen unter einer auf der Prothesensohle sitzenden Brücke (13) hindurchgesteckt sind, und sämtliche Lagen unmittelbar neben dem Scharnier (15) durch eine Spange (I4) zusammengehalten werden. 3. foot prosthesis according to claim I and 2, characterized in that the spring consists of several layers (9 to I2), of which only one (g) up to Tip passes through, while the others sit under one on the prosthetic sole Bridge (13) are pushed through, and all layers immediately next to the hinge (15) are held together by a clasp (I4).
DE1949807214D 1949-05-23 1949-05-23 Prosthetic foot Expired DE807214C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE807214T 1949-05-23

Publications (1)

Publication Number Publication Date
DE807214C true DE807214C (en) 1951-06-25

Family

ID=578238

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1949807214D Expired DE807214C (en) 1949-05-23 1949-05-23 Prosthetic foot

Country Status (2)

Country Link
AT (1) AT169349B (en)
DE (1) DE807214C (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234886A1 (en) * 1986-02-28 1987-09-02 J.E. HANGER & COMPANY LIMITED Artificial foot
EP0277175A1 (en) * 1986-07-28 1988-08-10 Ohio Willow Wood Inc Prosthetic foot.
EP0334989A2 (en) * 1988-03-29 1989-10-04 IPOS GMBH & CO. KG. Artificial foot for a leg prosthesis
FR2640499A1 (en) * 1988-12-15 1990-06-22 Palfray Michel Novel prosthetic foot structure
EP0407650A1 (en) * 1989-07-08 1991-01-16 IPOS GmbH & CO. KG. Artificial foot for a leg prothesis
US5387246A (en) * 1989-04-13 1995-02-07 Phillips; Van L. Prosthetic ski leg
US5486209A (en) 1989-04-13 1996-01-23 Phillips; Van L. Foot prosthesis having auxiliary ankle construction
US5509938A (en) 1991-02-28 1996-04-23 Phillips; Van L. Prosthetic foot incorporating adjustable bladder
US5514186A (en) 1989-04-13 1996-05-07 Phillips; Van L. Attachment construction for prosthesis
US5514185A (en) 1991-02-28 1996-05-07 Phillips; Van L. Split foot prosthesis
US5545234A (en) * 1991-04-04 1996-08-13 Collier, Jr.; Milo S. Lower extremity prosthetic device
US5549714A (en) 1990-09-21 1996-08-27 Phillips; Van L. Symes foot prosthesis
FR2745488A1 (en) * 1996-03-04 1997-09-05 Corima REACTIVE FOOT PROSTHESIS
US6406500B1 (en) 1989-04-13 2002-06-18 Van L. Phillips Foot prosthesis having curved forefoot
US6443995B1 (en) 2000-12-22 2002-09-03 Barry W. Townsend Prosthetic foot
EP1663082A1 (en) * 2003-08-29 2006-06-07 Michael Scott Sulprizio Prosthetic foot

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511514B1 (en) * 2000-08-16 2003-01-28 Michael T. Wilson Dynamic response prosthetic foot with multiaxial ankle

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234886A1 (en) * 1986-02-28 1987-09-02 J.E. HANGER & COMPANY LIMITED Artificial foot
EP0277175B1 (en) * 1986-07-28 1993-02-24 The Ohio Willow Wood Company, Inc. Prosthetic foot
EP0277175A1 (en) * 1986-07-28 1988-08-10 Ohio Willow Wood Inc Prosthetic foot.
EP0334989A2 (en) * 1988-03-29 1989-10-04 IPOS GMBH & CO. KG. Artificial foot for a leg prosthesis
EP0334989A3 (en) * 1988-03-29 1990-05-16 IPOS GMBH & CO. KG. Artificial foot for a leg prosthesis
FR2640499A1 (en) * 1988-12-15 1990-06-22 Palfray Michel Novel prosthetic foot structure
US5976191A (en) 1989-04-13 1999-11-02 Phillips; Van L. Foot prosthesis having curved forefoot
US5728176A (en) 1989-04-13 1998-03-17 Flex-Foot, Inc. Attachment construction for prosthesis
US5486209A (en) 1989-04-13 1996-01-23 Phillips; Van L. Foot prosthesis having auxiliary ankle construction
US6527811B1 (en) 1989-04-13 2003-03-04 Van L. Phillips Foot prosthesis with modular foot plate
US5514186A (en) 1989-04-13 1996-05-07 Phillips; Van L. Attachment construction for prosthesis
US5387246A (en) * 1989-04-13 1995-02-07 Phillips; Van L. Prosthetic ski leg
US6406500B1 (en) 1989-04-13 2002-06-18 Van L. Phillips Foot prosthesis having curved forefoot
US5593457A (en) 1989-04-13 1997-01-14 Phillips; Van L. Foot prosthesis having auxiliary ankle construction
EP0407650A1 (en) * 1989-07-08 1991-01-16 IPOS GmbH & CO. KG. Artificial foot for a leg prothesis
US5549714A (en) 1990-09-21 1996-08-27 Phillips; Van L. Symes foot prosthesis
US5514185A (en) 1991-02-28 1996-05-07 Phillips; Van L. Split foot prosthesis
US5509938A (en) 1991-02-28 1996-04-23 Phillips; Van L. Prosthetic foot incorporating adjustable bladder
US5545234A (en) * 1991-04-04 1996-08-13 Collier, Jr.; Milo S. Lower extremity prosthetic device
EP0793949A1 (en) * 1996-03-04 1997-09-10 Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft Jointless artificial foot
FR2745488A1 (en) * 1996-03-04 1997-09-05 Corima REACTIVE FOOT PROSTHESIS
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
EP1663082A1 (en) * 2003-08-29 2006-06-07 Michael Scott Sulprizio Prosthetic foot
EP1663082A4 (en) * 2003-08-29 2007-06-27 Michael Scott Sulprizio Prosthetic foot

Also Published As

Publication number Publication date
AT169349B (en) 1951-11-10

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