GB1420627A - Artificial foot - Google Patents

Artificial foot

Info

Publication number
GB1420627A
GB1420627A GB4686372A GB4686372A GB1420627A GB 1420627 A GB1420627 A GB 1420627A GB 4686372 A GB4686372 A GB 4686372A GB 4686372 A GB4686372 A GB 4686372A GB 1420627 A GB1420627 A GB 1420627A
Authority
GB
United Kingdom
Prior art keywords
keel
strip
toe
heel
shell
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
GB4686372A
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.)
Blatchford & Sons Ltd
Original Assignee
Blatchford & Sons Ltd
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 Blatchford & Sons Ltd filed Critical Blatchford & Sons Ltd
Priority to GB4686372A priority Critical patent/GB1420627A/en
Publication of GB1420627A publication Critical patent/GB1420627A/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
    • 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
    • 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

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)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

1420627 Artificial foot CHAS A BLATCHFORD & SONS Ltd 9 Jan 1974 [11 Oct 1972] 46863/72 Heading A5R An artificial foot has a rigid plastics centre portion e.g. of self-skinning polyurethane foam with a flexible reinforcing strip e.g. of balata belting or polypropylene connected to the rigid plastics material by moulding the latter to the strip. The solid ankle, cushion heel foot of Fig. 1 has a strip 3 extending into toe 2B and connected to centre portion or keel 1 by plugs 4 of the keel material entering inverted frusto-conical holes 4A in the strip. End face 4B is inclined rearwardly and upwardly to key it into keel 1. A softer outer portion of a self-skin forming kind of rigid plastics foam with an integral cushion heel 2A and toe 2B is foamed around the assembly of keel and strip. The embodiment of Fig. 2 incorporates a solid heel. The upper part of keel 5 is stepped at 5A, 5B, 5C to form a seating for a thin vacuum-formed plastics shell 8 which encloses rubber buffers 6A, 6B and pivot 6 which co-operates with inverted U-bolt 9 to form a uni-axial ankle pivot. Shell 8 is open at its bottom, and at its top 5D to fit around cosmetic fairing 7B. Toe 10, of the same material as keel 5, is connected to the latter by strip 11. The gap between toe and keel is filled by an expanded polyethylene cushion 13. In manufacture, keel 5 and toe 10 are foamed in a mould onto strip 11 and the assembly bonded to shell 8. An expanded polyethylene flexible sole 13A is attached to the underside of keel 5, the whole foot then being enclosed in a polyvinyl chloride cover 14. The embodiment of Fig. 3 (not shown) does not include a separate sole, shell or cover. In manufacture, the strip is located in a mould and the keel and toe foamed onto it. The assembly is located in a second mould and a cover (15) foamed around them. The keel is cut back at the heel (17) so that the cover may be thickened in this region to form a cushion heel (15A).
GB4686372A 1972-10-11 1972-10-11 Artificial foot Expired GB1420627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4686372A GB1420627A (en) 1972-10-11 1972-10-11 Artificial foot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4686372A GB1420627A (en) 1972-10-11 1972-10-11 Artificial foot

Publications (1)

Publication Number Publication Date
GB1420627A true GB1420627A (en) 1976-01-07

Family

ID=10442874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4686372A Expired GB1420627A (en) 1972-10-11 1972-10-11 Artificial foot

Country Status (1)

Country Link
GB (1) GB1420627A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214094A (en) * 1975-07-18 1977-02-02 Bock Orthopaed Ind Artificial leg having outer cover and leg connecting means
GB2000442A (en) * 1977-03-28 1979-01-10 Tucker M Artificial foot.
US4506395A (en) * 1983-03-18 1985-03-26 Otto Bock Orthopadische Industrie Kg Prosthetic foot
EP0277175A1 (en) * 1986-07-28 1988-08-10 Ohio Willow Wood Inc Prosthetic foot.
US4865612A (en) * 1986-07-28 1989-09-12 The Ohio Willow Wood Company, Inc. Prosthetic foot
EP0334989A2 (en) * 1988-03-29 1989-10-04 IPOS GMBH & CO. KG. Artificial foot for a leg prosthesis
US5158570A (en) * 1991-05-10 1992-10-27 College Park Industries, Inc. Prosthetic foot with improved ankle and elastomeric heel pad
WO1992020305A2 (en) * 1991-05-10 1992-11-26 College Park Industries, Inc. Prosthetic foot with heel adjustement mechanism
US8317877B2 (en) 2008-08-18 2012-11-27 The Ohio Willow Wood Company Prosthetic foot

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214094A (en) * 1975-07-18 1977-02-02 Bock Orthopaed Ind Artificial leg having outer cover and leg connecting means
JPS5740781B2 (en) * 1975-07-18 1982-08-30
GB2000442A (en) * 1977-03-28 1979-01-10 Tucker M Artificial foot.
GB2000442B (en) * 1977-03-28 1982-01-20 Tucker M Moulded syme foot and method of fitting and fabricating same
US4506395A (en) * 1983-03-18 1985-03-26 Otto Bock Orthopadische Industrie Kg Prosthetic foot
US4865612A (en) * 1986-07-28 1989-09-12 The Ohio Willow Wood Company, Inc. Prosthetic foot
EP0277175A1 (en) * 1986-07-28 1988-08-10 Ohio Willow Wood Inc Prosthetic foot.
EP0277175A4 (en) * 1986-07-28 1990-09-05 The Ohio Willow Wood Company, 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
US5158570A (en) * 1991-05-10 1992-10-27 College Park Industries, Inc. Prosthetic foot with improved ankle and elastomeric heel pad
WO1992020305A2 (en) * 1991-05-10 1992-11-26 College Park Industries, Inc. Prosthetic foot with heel adjustement mechanism
WO1992020305A3 (en) * 1991-05-10 1993-01-07 College Park Ind Inc Prosthetic foot with heel adjustement mechanism
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

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee