DE3239959C2 - Ankle joint for a prosthetic leg - Google Patents
Ankle joint for a prosthetic legInfo
- Publication number
- DE3239959C2 DE3239959C2 DE19823239959 DE3239959A DE3239959C2 DE 3239959 C2 DE3239959 C2 DE 3239959C2 DE 19823239959 DE19823239959 DE 19823239959 DE 3239959 A DE3239959 A DE 3239959A DE 3239959 C2 DE3239959 C2 DE 3239959C2
- Authority
- DE
- Germany
- Prior art keywords
- ankle
- foot
- ankle joint
- joint according
- axle
- 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
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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/30387—Dovetail connection
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30462—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements retained or tied with a rope, string, thread, wire or cable
-
- 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
- A61F2002/5072—Prostheses not implantable in the body having spring elements
- A61F2002/5073—Helical springs, e.g. having at least one helical spring
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
Abstract
Die Erfindung bezieht sich auf ein Fußgelenk für Beinprothesen zur beweglichen Verbindung zwischen Knöchel- und Fußteil mit Fersen- und Risteinschnitt zur Bewegungsfreigabe. Es soll hierbei eine flexible Lagerung mit einer gewissen Seitenbeweglichkeit geschaffen werden bei im übrigen einfachem Aufbau und mit bei der Fertigung auf den Prothesenträger einstellbarer Kniehebelgröße. Hierzu weist das Fußgelenk für Beinprothesen am Treffpunkt zwischen den Einschnitten einen Achslagerblock mit Dreieckquerschnitt auf, dessen Basisteil in einer Quernut am Fußteil eingelassen ist, während das Knöchelteil mit einer Querkerbe aufsitzt und beide Teile mittels durchgreifender, pendelgelagerter Verbindungsschraube zusammengehalten sind.The invention relates to an ankle joint for leg prostheses for the movable connection between the ankle and foot part with heel and instep incision to enable movement. A flexible mounting with a certain lateral mobility is to be created here with an otherwise simple structure and with a toggle lever size that can be adjusted to the prosthesis wearer during manufacture. For this purpose, the ankle joint for leg prostheses at the meeting point between the incisions has an axle bearing block with a triangular cross-section, the base part of which is embedded in a transverse groove on the foot part, while the ankle part rests with a transverse notch and both parts are held together by means of a pendulum-mounted connecting screw.
Description
Die Erfindung betrifft ein Knöchelgelenk für eine Beinprothese entsprechend dem Oberbegriff des Anspruchs I.The invention relates to an ankle joint for a leg prosthesis according to the preamble of the claim I.
Es sind solche Knöchelgelenke für Beinprothesen mit Fersen- und Risteinschnitt zur Bewegungsfreigabe vermittels Achsiagerblock aus hartgummiartigem Material, wobei das Fuß- und Knöchelteil mittels einer den Achsiagerblock durchgreifenden Verbindungsschraube zuThere are such ankle joints for leg prostheses with heel and instep incisions to enable movement Axle support block made of hard rubber-like material, the foot and ankle parts by means of the axle support block through connecting screw to
6060 sammengehalten sind und der Achsiagerblock im Fuß- und Knöchelteil in Quernuten gelagert ist. bekannt aus der DE-PS 8 34 884. Hierbei findet ein Achsiagerblock in Rechteckform Verwendung, welcher bei Bewegung in beiden Richtungen des Fußes aus der Senkrechten heraus zur Kompression und damit zur Erschwernis beim Gehen führtare held together and the axle support block is stored in transverse grooves in the foot and ankle parts. known from DE-PS 8 34 884. Here, an axle bearing block in a rectangular shape is used, which when moving in both directions of the foot out of the vertical to compression and thus to difficulty when walking leads
Auch die Ausbildung des Achslagerblocks nach der DE-OS 14 91 182 sowie der GB-PS 4 79 132 und den US-PS 1818 893,26 92 392 und 23 15 795 führt zur unerwünschten Kompression in beiden Bewegungsrichtungen des Fußes beim Gehen.The formation of the axle bearing block according to DE-OS 14 91 182 and GB-PS 4 79 132 and the US-PS 1818 893,26 92 392 and 23 15 795 leads to undesirable compression in both directions of movement of the foot when walking.
Es ist nun Aufgabe der Erfindung bei solchen Knöchelgelenken für Beinprothesen mit Achslagerblock bei der Bewegung des Fußes beim Gehen solche Kompressionen zu vermeiden und bei flexibler Lagerung gesicherte und gleichmäßige Bewegungsabläufe auch mit einer gewissen Seitenbeweglichkeit zu erreichen.It is now the task of the invention with such ankle joints for leg prostheses with axle bearing block the movement of the foot when walking to avoid such compressions and, with flexible positioning, secure and even movement sequences with it to achieve a certain lateral mobility.
Diese Aufgabe wird bei dem Knöchelgelenk nach dem Oberbegriff des Anspruchs 1 gemäß der Erfindung dadurch gelöst daß der Achslagerblock einen Dreiecksquerschnitt aufweist mit seinem Basisteil in der Quernut des Fußteils liegt und auf seinem Spitzenteil das Knöchelteil mit einer Querkerbe sitzt und die durchgreifende Verbindungsschraube in einem im Knöchelteil angeordneten Pendellager gelagert ist.This object is achieved with the ankle joint according to the preamble of claim 1 according to the invention solved in that the axle bearing block has a triangular cross-section with its base part in the transverse groove of the foot part and the ankle part sits on its tip part with a transverse notch and the cross-connecting screw is mounted in a self-aligning bearing arranged in the ankle part.
Im einzelnen kann hierbei die Qucrnul im Fußteil eine Schwalben:;chwanzform aufweisen und die Querkerbe im Knöchelteil an dem Spitzenteil des Achslagerblocks anliegen, um für einen präzisen und gleichmäßigen Bewegungsablauf beim Gehen zu sorgen. In particular, the cross-section in the foot part can have a swallow-tail shape and the cross-notch in the ankle part can rest against the tip part of the axle bearing block in order to ensure a precise and even sequence of movements when walking.
Weitere Einzelheiten eines bevorzugten Ausführungsbeispiels sind in der Zeichnung dargestellt und zwar als Schnitt durch ein solches Gelenk. Further details of a preferred embodiment are shown in the drawing as a section through such a joint.
Wie aus der Zeichnung ersichtlich wird, dient das erfindungsgemäße Knöchclgelenk der beweglichen Ver bindung zwischen dem Knöchelteil 1 und Fußteil 2, wel che in der Regel aus Holz gefertigt sind. Hierbei sind zwischen dem Knöchelteil 1 und dem Fußteil 2 der Ferseneinschnitt 3 und Risteinschnitt 4 zur Bewegungsfrei gabe vorgesehen, wie das an sich bekannt ist. Am Treff punkt zwischen den Fersen- und Risteinschnitten 3 bzw. As can be seen from the drawing, the movable Knöchclgelenk Ver the invention serves bond between the ankle portion 1 and base portion 2, wel che are usually made of wood. Here, between the ankle portion 1 and the foot part 2 of the heel incision 3 and 4 are for movement Risteinschnitt free gift provided, as is known per se. At the meeting point between the heel and instep cuts 3 resp.
4 ist ein Achslagerblock 5 mit Dreieckquerschnitt aus hartgummiartigem Material vorgesehen. Dieser Achsiagerblock 5 mit Dreieckquerschnitt sitzt mit seinem Basisteil 5a in einer schwalbcnschwanzförmigen Quernut 6 im Fußteil 2 und dem Spitzenteil 5b des Achslagerblocks 4 , an axle bearing block 5 with a triangular cross-section made of hard rubber-like material is provided. This axle bearing block 5 with a triangular cross-section sits with its base part 5a in a dovetail-shaped transverse groove 6 in the foot part 2 and the tip part 5b of the axle bearing block
5 liegt der Knöchelteil 1 mit der Querkerbe 7 des Knöchelteil 1 an.5 the ankle part 1 rests with the transverse notch 7 of the ankle part 1.
Der Knöchelteil 1 und das Fußteil 2 sind mittels durchgreifender, pendelgelagerter Verbindungsschraube 8 zusammengehalten. Das Pendellager 9 in Form eines Kugelpendels 9a ist hier in einem Mittelausschnitt 10 des Achslagerblocks 5 auf einer durch den Knöchelteil 1 in Richtung der Fußspitze 24 führenden Längsachse 11 vorgesehen. Der Drehpunkt Cdes Pendellagers 9 liegt hierbei zweckmäßigerweise etwas über dem Spit zenteil 5b des Achslagerblocks 5 Die Verbindungsschraube 8 besteht aus der Schraubenhülse 8a mit Kugelpendel 9a im Knöchelteil 1 und der in diese Schraubenhülse 8a reichenden Anzugsschraube 86 im Fußtei! 2. Die Längsachse 11 für das Kugelpendel 9a ist vorderseitig mit Gewindeende 11a in der Gewindehülse 12 am Knöchelteil 1 eingeschraubt und dient rückseitig der Befestigung des Begrenzungsseils 13, welches im Fersenbereich 2a des Fußtcils 2 verankert ist. Hierzu liegt das Begrenzungsseil 13 als Schlaufe um den Ringnutteil 14 am Ende der Längsachse 11 und ist mit beiden EndenThe ankle part 1 and the foot part 2 are held together by means of penetrating, pendulum-mounted connecting screw 8. The self-aligning bearing 9 in the form of a ball pendulum 9a is provided here in a central cutout 10 of the axle bearing block 5 on a longitudinal axis 11 leading through the ankle part 1 in the direction of the toe 24 . The fulcrum C of the self-aligning bearing 9 is conveniently located slightly above the Spit z part 5b of the axle bearing block 5 The connecting screw 8 consists of the screw sleeve 8a with spherical pendulum 9a in the ankle part 1 and the tightening screw 86 reaching into this screw sleeve 8a in the foot part! 2. The longitudinal axis 11 for the spherical pendulum 9a is screwed into the threaded sleeve 12 on the ankle part 1 at the front with a threaded end 11a and is used on the rear to attach the limiting rope 13, which is anchored in the heel area 2a of the foot piece 2. For this purpose, the limiting rope 13 lies as a loop around the annular groove part 14 at the end of the longitudinal axis 11 and is at both ends
bei 13a an der Verankerungsplatte 15 im Fersenbereich 2a des Fußteils 2 längsverstellbar befestigt, womit sich eine individuelle Begrenzung der Fußbewegung einstel- !en faßt.at 13a attached to the anchoring plate 15 in the heel area 2a of the foot part 2 so as to be adjustable in length set an individual limitation of foot movement ! en summarizes.
Im Ferseneinschnitt 3 ist in Sacklöche- 16, 17 vom Knöchel- und Fußteil 1,2 eine Druckfeder 18 zwischengeschaltet, und im Risteinschnitt 4 ist ein keilartiges EIastikstück, z. B. als Filzkeil 19 zwischengelegt Der Einbau des Begrenzungsseils 13 im Knöchelteil 1 ist mittels Abdeckkappe 20 verdeckt und reicht durch zwei Löcher 21 im Fersenbereich 2a des Fußteils 2 bis zur Verankerungsplatte 15. Schließlich isi der Kopf der Anzugsschraube Sb sowie die Verankerungsplaüe 15 das Begrenzungsseil 13 im Fersenbereich 2a des Fußteils 2 teilweise eingelassen und durch eine Elastiksohle 22 nach unten abgedeckt Die Gewindehülse 12 für die Längsachse 11 mit Gewindeende 11a ist vorne mittels Winkelstück 23 abgedeckt Nach vorn wird der Fußteil 2, wie üblich, durch eine Fußspitze 24 aus Filz abgeschlossen, während die Fersen- und Risuinschnitte 3 bzw. 4 mittels Ledermanschette 25 verdeckt sindIn the heel incision 3, a compression spring 18 is interposed in blind holes 16, 17 of the ankle and foot parts 1, 2, and in the instep incision 4 is a wedge-like elastic piece, for. B. than Filzkeil 19 sandwiched The installation of the limiter cable 13 in the knuckle member 1 is covered by means of cap 20 and extends through two holes 21 in the heel region 2a of the base 2 to the anchor plate 15. Finally, isi of the head of the tightening bolt Sb and Verankerungsplaüe 15, the governor rope 13 partially embedded in the heel area 2a of the foot part 2 and covered by an elastic sole 22 The threaded sleeve 12 for the longitudinal axis 11 with threaded end 11a is covered at the front by means of an angle piece 23 To the front, the foot part 2 is closed off, as usual, by a toe 24 made of felt, while the heel and risuin cuts 3 and 4 are covered by means of a leather sleeve 25
Hiermit ergibt sich eine flexible Knöchelgelenk-Lagerung mit einer gewissen Seitenbeweglichkeit. Überdies ist der Kniehebel gebildet aus der Hauptachse A-A und der Längsachse B-B zum Achslagerblock 5 durch entsprechende Anbringung der Schwalbenschwanz-Qucrnul 6 im Fußteil 2 einerseits und der Querkerbe 7 im Knöchelteil 1 andererseits bei der Prothesenfertigung variabel.This results in a flexible ankle joint support with a certain degree of lateral mobility. In addition, the toggle lever is formed from the main axis AA and the longitudinal axis BB to the axle bearing block 5 by appropriate attachment of the dovetail cross-section 6 in the foot part 2 on the one hand and the cross-notch 7 in the ankle part 1 on the other hand variable during prosthesis production.
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Hierzu 1 Blatt Zeichnungen1 sheet of drawings
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Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823239959 DE3239959C2 (en) | 1982-10-28 | 1982-10-28 | Ankle joint for a prosthetic leg |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823239959 DE3239959C2 (en) | 1982-10-28 | 1982-10-28 | Ankle joint for a prosthetic leg |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3239959A1 DE3239959A1 (en) | 1984-05-10 |
DE3239959C2 true DE3239959C2 (en) | 1985-08-08 |
Family
ID=6176830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823239959 Expired DE3239959C2 (en) | 1982-10-28 | 1982-10-28 | Ankle joint for a prosthetic leg |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3239959C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7879110B2 (en) | 1998-04-10 | 2011-02-01 | Ossur Hf | Foot prosthesis having cushioned ankle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4718913A (en) * | 1986-05-27 | 1988-01-12 | Voisin Jerome P | Dual, ankle, springs prosthetic foot and ankle system |
US5158570A (en) * | 1991-05-10 | 1992-10-27 | College Park Industries, Inc. | Prosthetic foot with improved ankle and elastomeric heel pad |
US9259332B2 (en) * | 2006-12-14 | 2016-02-16 | Lincolnshire Manufacturing, Llc | Prosthetic vacuum system |
US8821589B2 (en) | 2008-05-13 | 2014-09-02 | Jerome R. Rifkin | Joints for prosthetic, orthotic and/or robotic devices |
US20110015762A1 (en) * | 2009-07-14 | 2011-01-20 | Tensegrity Prosthetics Inc. | Joints for prosthetic, orthotic and/or robotic devices |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818893A (en) * | 1929-11-30 | 1931-08-11 | Hoy Lyman Lorraine | Artificial limb |
GB479132A (en) * | 1936-08-04 | 1938-02-01 | Harry Yearsley | Improvements in artificial feet and legs |
US2315795A (en) * | 1940-06-17 | 1943-04-06 | Conrad B Johnson | Artificial limb |
DE834884C (en) * | 1950-05-06 | 1952-03-24 | Anton Schievekamp | Prosthetic foot |
US2692392A (en) * | 1951-04-05 | 1954-10-19 | Modern Limb Supply Co Inc | Artificial limb |
DE1491182A1 (en) * | 1965-11-23 | 1969-07-17 | Kowald Johann Ingo | Artificial foot |
-
1982
- 1982-10-28 DE DE19823239959 patent/DE3239959C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7879110B2 (en) | 1998-04-10 | 2011-02-01 | Ossur Hf | Foot prosthesis having cushioned ankle |
Also Published As
Publication number | Publication date |
---|---|
DE3239959A1 (en) | 1984-05-10 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |