EP3052058A1 - Prothèse de pied - Google Patents

Prothèse de pied

Info

Publication number
EP3052058A1
EP3052058A1 EP14781475.0A EP14781475A EP3052058A1 EP 3052058 A1 EP3052058 A1 EP 3052058A1 EP 14781475 A EP14781475 A EP 14781475A EP 3052058 A1 EP3052058 A1 EP 3052058A1
Authority
EP
European Patent Office
Prior art keywords
foot
prosthetic foot
core piece
sheath
foot according
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.)
Withdrawn
Application number
EP14781475.0A
Other languages
German (de)
English (en)
Inventor
Felix STARKER
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3052058A1 publication Critical patent/EP3052058A1/fr
Withdrawn legal-status Critical Current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
    • A61F2/602—Artificial legs or feet or parts thereof with air cushions
    • 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
    • A61F2002/501—Prostheses not implantable in the body having an inflatable pocket filled with fluid, i.e. liquid or gas
    • 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
    • A61F2002/665—Soles

Definitions

  • the invention relates to a prosthetic foot with a core piece and a core at least partially surrounding, adapted to a foot shape sleeve with a pressure chamber, which is filled with a medium.
  • a prosthetic foot with a core piece and a core piece at least partially surrounding shell with at least one pressure chamber, which is filled with a medium known.
  • the core includes a portion of a foot top and a heel top. The shell abuts the foot top and the heel top of the core.
  • prosthesis feet with a shell which can be filled with a medium are known from GB 275 902 A, DE 114 440 A, US Pat. No. 5,779,787 and US Pat. No. 1,151,144.
  • a shoe shape can be formed by such an embodiment, but this has the disadvantage that an undefined deformation of the heel part and during further unrolling an undefined deformation of the forefoot occurs during placement of the prosthesis, wherein during the Abrollgangs from the heel area to forefoot a hard Transition due to the core, which extends to the sole, is given.
  • the invention has for its object to provide a prosthetic foot as a replacement of the human foot, which is robust and simple and at the same time allows a high degree of comfort and almost corresponds to a rolling motion of a human foot.
  • a prosthetic foot in which a sheath rests on the foot upper part and the heel upper part and starting from the heel upper part to at least the midfoot region has a continuous sole and at least one shape stabilization element which extends along the foot upper part at least to the midfoot region, so that when rolling the foot, the shape stabilizing element is yielding and is returned to the rolling of the foot formed by the shell in an initial position, which occupies the shell without load and corresponds to a natural foot position.
  • This shape stabilization element allows the sheath surrounding the pressure chamber to provide controlled unrolling of the prosthetic foot and, after unwinding, to ensure that the sheath returns to the starting position for the next step.
  • the flexible shape stabilizing element allows the foot to be modeled on a rolling behavior during the dynamic walking of a human foot, whereby a high level of comfort for the user is provided.
  • the core piece is arranged with its underside at a distance from the sole of the foot. This may be given a muted rolling and placing the foot. Due to the filling pressure, the shock absorption can be adjusted.
  • a plurality of pressure chambers may be formed in the shell, said pressure chambers are filled with one and the same medium, as well as with the same or different pressures.
  • they can be filled with different media and / or with the same or different pressures in order to be able to set a rolling behavior and a damping specifically.
  • the walking behavior can be adjusted. For example, for the use of the prosthetic foot in a running sport, a different pressure setting than when walking normally.
  • the shape stabilizing element preferably also extends along the heel top. As a result, a further dimensional stability is given with respect to the casing in order to counteract an undefined dodging of the pressure chamber in the heel region when the foot is put on.
  • the sheath of the prosthetic foot is preferably formed tube-free. Thereby, a reduction of the components and simple construction can be achieved.
  • This prosthetic foot preferably has a connection point in the ankle area of the core piece.
  • the connection point is in particular formed by a releasable connecting element such as a screw connection, a latching or plug connection or an other interface, such as a pyramid adapter, so that after a prolonged use of the prosthetic foot a simple replacement or adjustment is possible.
  • At least one valve is provided in the connection point, via which the at least one pressure chamber can be filled with a medium.
  • a compressed air valve is provided, so that the pressure chamber can be filled with a gaseous medium, in particular air.
  • a liquid medium or gel medium for filling the pressure chamber may be provided.
  • a single valve is provided, through which a shell with a single pressure chamber can be filled with a medium.
  • valves can be provided for each pressure chamber and the valves provided for this purpose can preferably also be integrated in the connection point.
  • these valves may be arranged at least partially outside the connection point and are then preferably protected with a closure cap or cover to prevent soiling and damage.
  • the attacking on the core shell is preferably medium-tight manner connected to the core piece at the transition region between the connection point and the devisobererteil and heel top. This can create a self-contained unit.
  • the shell loosely rests on the upper foot part and / or heel upper part on the core piece.
  • a partial or complete connection such as, for example, bonding or vulcanization with the foot upper part and / or heel upper part, may also be present.
  • toes On the shell are preferably formed directly toes. This gives a further simplification in the production.
  • an attractive foot cosmetics preferably in combination with the heel top, can be created.
  • the toes can be individually formed or formed as a single acting shaped or embossed.
  • the sheath is preferably formed from a rubber-elastic plastic or natural rubber, in particular a fiber / wire reinforced plastic.
  • a compliance on the one hand given a compliance, on the other hand, a sufficient strength to withstand the stresses.
  • the toes are made of solid rubber.
  • for the formation of the casing and toes materials may be used, as is given in the manufacture of car tires, so that a high abrasion resistance and a low cosmetic impairment in use are given.
  • the shape stabilizing element is designed as a separate, in particular clasp-shaped or cup-shaped component, which can be placed on the core piece with the interposition of the sleeve.
  • This makes it possible on the one hand during a rolling movement of the heel over a fourth and fifth beam of the foot, which form a torsion axis for rolling over the forefoot, to the forefoot forming toes or toe members is modeled.
  • the shell or clasp-shaped configuration of the shape stabilization element that a lateral deflection of the pressure chamber is prevented.
  • the shape stabilization element is integrated into the shell according to an alternative embodiment. This provides a compact and easy to handle embodiment.
  • the shape stabilizing element is preferably made of a resilient plastic. This elasticity can be adjusted depending on the body weight of the user. Alternatively, the shape stabilizing element can also be integrated directly in the rubber or the shell via a metal fiber composite.
  • the shape stabilizing element advantageously extends from the foot upper part to the forefoot, in particular to the transition region between the pressure chamber and toes formed thereon, so that a rolling axis is formed between the metatarsal bone and the toe links. As a result, the natural rolling axis can be simulated.
  • the shape stabilization element preferably extends to a medial or inner side and a lateral or outer side of the foot. It is provided on the medial side, that the shape stabilization element extends to the arch of the foot. On the lateral side, the shape stabilizing element may comprise the fifth beam of the foot.
  • the medial and lateral extent of the shape stabilizing element is advantageously asymmetrical and adapted to the natural shape of the foot.
  • a further advantageous embodiment of the prosthetic foot provides that the core piece has a rolling contour facing the sole of the foot (roll-over shape). In the event that the pressure chamber should be depressurized, a quasi emergency running property is given, so that the prosthetic foot still allows rolling.
  • the rolling contour (roll-over shape) of the core piece preferably has a rubber-like coating, so that a damped appearance is made possible.
  • the coating is formed of a hardness of> 90 Shore A.
  • the outer skin of the shell preferably has an abrasion-resistant rubber material in the area of the sole of the foot, which in particular comprises a profiling. This can be given an increased life, functionality and stability on the ground.
  • a somewhat softer material Adjacent to the abrasion-resistant rubber material of the sole of the foot, a somewhat softer material is preferably formed. Especially in the area of the arch of the foot. Thereby, a natural torsion axis between the heel and the forefoot over the fourth and fifth beam of the metatarsus can be created, whereby a three-dimensional rolling process is made possible.
  • FIG. 1 shows a schematic sectional view of a prosthesis foot according to the invention
  • FIG. 2 shows a perspective view of an outer side of the prosthetic foot according to FIG. 1,
  • FIG. 3 shows a perspective view of an inner side of the prosthetic foot according to FIG. 1,
  • FIG. 4 shows a view from below of the prosthesis foot according to FIG. 1.
  • FIG. 1 shows a schematic sectional view of a prosthetic foot 11 for discussing the structure and mode of operation of the prosthetic foot.
  • FIGS. 2 and 3 each show perspective lateral views of the prosthetic foot 11 according to FIG. 1 and FIG. 4 a view of a foot sole of the prosthetic foot, so that the aesthetic bodily embodiment of the prosthetic foot 11 can be seen more clearly from FIGS.
  • the prosthetic foot 11 consists of a core piece 14 and a sheath 22 which at least partially surrounds the core piece 14 and forms a pressure chamber 21 between the core piece 14 and the sheath 22.
  • a connection point 15 is provided to attach the prosthetic foot 11 to an artificial lower leg 16 interchangeably.
  • a screw, a bayonet or the like is provided at the core piece 14 .
  • a non-detachable connection may be formed at the core piece 14 a screw, a bayonet or the like.
  • the connection point 15 receives a valve 18, which is freely accessible from the outside, ie from the side of the lower leg 16 with the prosthetic foot 11 removed. Via this valve 18, a medium can be introduced into the pressure chamber 21 of the shell 22.
  • This valve may be a car valve or other valve, so that commercial pumping systems or media filling systems can be used.
  • the sheath 22 is preferably attached to the edge 14 of the junction 16 media-tight to the core piece 14 to form a sealed pressure chamber 21.
  • fillable media gaseous, gel, liquid or viscous media can be used.
  • a hydraulic oil or the like may be used.
  • shell 22 may include a plurality of pressure chambers 21, so that individual chambers may also be filled with different media to form different hardnesses or attenuations for the prosthetic foot 11.
  • the core piece 14 comprises a foot upper part 24 and a heel upper part 25, which are slightly roof-shaped associated with each other.
  • the shell 22 is advantageously on the favoroberteil 24 and / or the heel top 25 at. Alternatively, it may be provided that the shell 22 is partially or completely firmly connected in the region resting directly on the foot upper part 24 and heel top part 25.
  • the shell 22 is tubeless and consists of a plastic material, in particular fiber-reinforced plastic material or a plastic-metal fiber matrix whose wall thickness can be adapted to the function of the foot.
  • the sheath 22 may also include a wire reinforced wall structure.
  • the shell 22 may have a single or multi-layered wall structure, wherein individual areas may be reinforced by a multilayer wall structure.
  • the sheath 22 includes a heel 27, from which a sole 28 extends from the region of the tarsal bones over the metatarsal bones to the toe links.
  • the pressure chamber 21 itself extends from the heel region 27 to the midfoot region 31.
  • the toe 33 are then advantageously formed from solid material in the forefoot region 32 at the midfoot region 31, without the pressure chamber 21 extending into the toes 33. Due to the design of the toes 33 made of solid rubber, a natural toe shape can be reproduced, so that even all the individual toes 33 are each movable in their own right.
  • the sole of the foot 28 is spaced from an outer contour 35 on an underside of the core piece 14.
  • the outer contour 35 points to the sole of the foot 28 and comprises a course, so that a sufficient rolling behavior is made possible with a pressure chamber 21 which is not filled with medium.
  • a section 51 of the core piece 14 facing towards the heel region 27 preferably has a steep rising course starting from the valve 18 leading into the pressure chamber 21, than the section 52 pointing towards the midfoot region 31, which is flatter.
  • a rubber-like coating 36 is applied to allow a muted rolling.
  • a damping element 38 may be provided between the connection point 15 and the lower leg 16.
  • This damping element 38 may be assigned directly to the connection point 15 and secured thereto.
  • This damping element 38 may alternatively be formed as a sealing element or additionally with a sealing function, so that this prosthetic foot can be worn without shoes and can also be used without problems in wet sludges, under water or heavily abrasive ground.
  • the prosthetic foot 11 further has on its foot top 24 and preferably also on its heel top 25 in each case a shape stabilizing element 41. This may, for example, extend partially or completely with respect to the foot upper part 24 and heel top part 25 of the core piece 14. In addition, it can also be provided that this extends beyond the heel upper part 25, so that this still forms part of the heel.
  • the shape stabilizing element 41 along the foot upper part 24 extends at least advantageously into the forefoot region 32 or into a transition region between the midfoot region 31 and the toes 33, so that due to the further embodiment of the pressure chamber 21, which extends to the midfoot region 31 and the solid material formed toe 33 is a natural Abrollachse 43 which corresponds to the Abrollachse of the human foot between the metatarsal bones and the toe links.
  • This shape stabilization element 41 may have a contour 44 adapted to the toe contour of the human foot for forming this roll-off axis 43, the shape-stabilization element 41 preferably extending to the lateral side of the foot and covering a fifth ray 45 of the foot.
  • the shape stabilizing element 41 extends in the direction of the heel and covers an ankle area 46, so that the pressure chamber 21 can not escape laterally when it occurs and there can be an uncontrolled flexing behavior.
  • the shape stabilization element 41 extends above the arch of the foot 47 or the arch of the foot 47 is designed to be non-compliant in order to further simulate the rolling behavior of the human foot.
  • the shape stabilizing element 41 is advantageously integrated in the casing 22 and comprises, for example, fiber-reinforced elements produced by a plastic deviating from the casing 22, for example by a multi-component injection molding technique. As a result, although the shape stabilizing element 41 may be flexible, it may be stiffer than the shell 22.
  • the shape stabilizing element 41 may be fixedly arranged in the area of the foot top 24 and / or heel top part 25 covering the core piece 14.
  • the shape stabilizing element 41 is also firmly connected to the core piece 14 only in the region of the connection point 15, in which the sleeve 22 is arranged, and from there to the respective free end and against the core piece 14 at least partially lifted off is.
  • the shape stabilizing element 41 may also have an elastic parting line 49 in the region of the foot upper part 24 and / or the midfoot region 31, in order to form a so-called "split toe". As a result, a 3D rolling behavior of the prosthetic foot 11 can be additionally supported.
  • the embodiment of the sole of the foot 28 on the shell 22 is shown.
  • the sole of the foot 28 has a particularly abrasion-resistant material, such as a rubber material for bicycle tires or car tires.
  • the sole of the foot 28 may also have a profile, so that a better traction with the ground is given.
  • the arch area 47 and a part of the ankle area 46 are formed with softer material, which in turn provides a further improved dynamics when walking and unrolling the prosthetic foot 11.
  • a natural rolling behavior is possible, so called a three-dimensional unwinding.
  • This is achieved, for example, by the course of the sole of the foot according to FIG.
  • the shape stabilization element 41 which extends asymmetrically laterally and medially and along the midfoot region 31.
  • a very robust design is given, which allows a barefoot insert.
  • a visually appealing design is given.
  • an adaptation in the form and / or shape of the prosthetic foot to various needs can be made possible in a simple manner.
  • the sole design can be used directly as a running shoe, so that, for example, the forefoot opposite the heel is rotatable and connected to a web.
  • a multi-component elastomer solution can be used.
  • a boot design or a shoe can be designed, on which, for example, a heel is formed with a sole.
  • the prosthetic foot can also be worn "barefoot" without a shoe.
  • alternating soles can be formed on the underside of the prosthetic foot so that, for example, it is also possible to change with regard to different shoe shapes and profile soles. Due to the use of a valve 18, in particular a car valve, a low-maintenance system is given.
  • a pneumatic prosthetic foot an optimized guidance of the center of gravity of the body as well as a three-dimensional rolling behavior and also a safe walking on uneven surfaces can be made possible.

Landscapes

  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (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

L'invention concerne une prothèse de pied comportant une pièce centrale (14) et une enveloppe (22) entourant au moins partiellement la pièce centrale (14) et comportant au moins une chambre de pression (21) qui peut être remplie avec une substance, la pièce centrale (14) comprenant une partie supérieure de pied (24) et une partie supérieure de talon (25) et l'enveloppe (22) portant sur la partie supérieure de pied (24) et la partie supérieure de talon (25) de la pièce centrale (14). L'invention est caractérisée en ce que l'enveloppe (22) s'étend d'une région de talon (27), se raccordant à la partie supérieure de talon (25), jusqu'à au moins la région de pied médiane (31) et forme une semelle (28) continue et en ce qu'au moins un élément de stabilisation de forme (41) est prévu qui s'étend le long de la partie supérieure de pied (24) au moins jusqu'à la région de pied médiane (31) et qui agit sur l'enveloppe (22) de telle sorte que, lors du mouvement de déroulement de la prothèse de pied (11), l'enveloppe (22) adaptée à la forme du pied est déformable dans la région antérieure du pied et après le mouvement de déroulement la forme de pied formée par l'enveloppe retourne dans une position de départ dans laquelle l'enveloppe (22) reprend une position naturelle du pied.
EP14781475.0A 2013-10-01 2014-09-22 Prothèse de pied Withdrawn EP3052058A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013110851.2A DE102013110851B4 (de) 2013-10-01 2013-10-01 Prothesenfuß
PCT/EP2014/070127 WO2015049116A1 (fr) 2013-10-01 2014-09-22 Prothèse de pied

Publications (1)

Publication Number Publication Date
EP3052058A1 true EP3052058A1 (fr) 2016-08-10

Family

ID=51663144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14781475.0A Withdrawn EP3052058A1 (fr) 2013-10-01 2014-09-22 Prothèse de pied

Country Status (3)

Country Link
EP (1) EP3052058A1 (fr)
DE (1) DE102013110851B4 (fr)
WO (1) WO2015049116A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023031637A1 (fr) * 2021-09-01 2023-03-09 Chabloz Orthopédie Semelle interchangeable pour chaussures à talons hauts
CN117814969B (zh) * 2024-03-04 2024-06-07 吉林大学 一种气动平衡与重心主动调节的下肢仿生假肢

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352942A (en) * 1919-10-06 1920-09-14 Dodge Lewis Pneumatic foot

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US579787A (en) * 1897-03-30 Ross bowman
DE114440C (fr) *
GB190114894A (en) * 1901-07-22 1902-06-05 Edward Henry Walker Improvements in Artificial Feet.
US1151144A (en) * 1914-12-19 1915-08-24 John E Wofe Artificial foot.
DE420867C (de) 1925-02-08 1925-11-02 Kleinert & Co Kuenstlicher Fuss
GB275902A (en) * 1927-04-26 1927-08-18 Adolf Kaletta Improvements in artificial feet
US2075583A (en) * 1935-08-31 1937-03-30 Lange Gottlieb Foot for artificial limbs
US2442151A (en) * 1945-04-28 1948-05-25 Edwin L Strickland Pneumatic artificial foot
DE941684C (de) * 1954-03-17 1956-04-19 Heinrich Kuckuck Kunstfuss fuer Beinamputierte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1352942A (en) * 1919-10-06 1920-09-14 Dodge Lewis Pneumatic foot

Also Published As

Publication number Publication date
DE102013110851B4 (de) 2015-12-24
WO2015049116A1 (fr) 2015-04-09
DE102013110851A1 (de) 2015-04-02

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