GB1563246A - Fairings for ankle joints - Google Patents

Fairings for ankle joints Download PDF

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Publication number
GB1563246A
GB1563246A GB4808676A GB4808676A GB1563246A GB 1563246 A GB1563246 A GB 1563246A GB 4808676 A GB4808676 A GB 4808676A GB 4808676 A GB4808676 A GB 4808676A GB 1563246 A GB1563246 A GB 1563246A
Authority
GB
United Kingdom
Prior art keywords
fairing
ankle joint
moulded member
plastics material
ankle
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
GB4808676A
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.)
JE Hanger and Co Ltd
Original Assignee
JE Hanger and Co 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 JE Hanger and Co Ltd filed Critical JE Hanger and Co Ltd
Priority to GB4808676A priority Critical patent/GB1563246A/en
Publication of GB1563246A publication Critical patent/GB1563246A/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
    • A61F2/76—Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing, e.g. alignment means
    • 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
    • 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
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • 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
    • A61F2002/5001—Cosmetic coverings
    • 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

Landscapes

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

Description

(54) IMPROVEMENTS IN AND RELATING TO FAIRINGS FOR ANKLE JOINTS (71) We, J. E. HANGER & COMPANY LIMITED. a British Company of Roehampton Lane, Roehampton, London SW15 5PL, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention is concerned with ankle joints for artificial limbs.
For cosmetic purposes, it is desirable to enclose the structural members of the ankle joint with a fairing which has hitherto been formed individually around each joint.
An object of the present invention is to provide a fairing for an ankle joint which can be preformed to accommodate any particular joint structure whilst providing for the external cosmesis to be adapted to a specific patient.
From one aspect. the invention provides a fairing for an ankle joint, comprising a moulded member of relatively soft plastics material provided with recesses to accommodate the structural members of the joint and having an outer surface of shape approximating to the natural shape of an ankle and a sleeve of rigid plastics material enclosing the moulded member and extending upwardly above it to form a cosmetic fairing between the shin and the foot of a user.
From another aspect, an ankle joint in accordance with the invention is enclosed in a preformed moulded member of relatively soft plastics material which in turn is enclosed by a preformed sleeve of more rigid plastics shaped to provide a cosmetic fairing between the shin and the foot of the user.
The invention thus provides for the use of a single-sized assembly of structural members in combination with an external cosmetic fairing adapted to the shape of a particular patient, the pre-moulded plastics member taking up the differences in size or shape of the external cosmetic fairing.
Other parts of the invention are embodied in the preferred form of the invention which will now be described in some detail with reference to the accompanying drawing, the single figure of which is an exploded view of an ankle fairing.
As shown, an ankle joint comprises an assembly 1 of structural members joining a tubular shin member 2 to a pivoted T-bolt 3 by which a foot (not shown) can be connected to the joint. The ankle joint 1 is of the kind described in Patent Specification No. 1,494,706, but it will be understood that the invention is applicable to any other type of ankle joint.
The assembly 1 is enclosed in a member 4 which is moulded from a soft plastics material and is provided internally with recesses such as shown at 5,6 into which the structural members fit.
Externally the member 4 is shaped so as to approximate to the natural shape of an ankle. A relatively rigid sleeve 7 forming a cosmetic fairing for the shin engages over the member 4 The lower portion of the sleeve 7 is shaped to fit closely over the outside of the member 4, though it will be appreciated that such a fitting is not critical due to the softness of the member 4 which allows it to compensate for small differences in shape. The upper part of the sleeve 7 may be shaped as necessary to provide an external cosmetic fairing adapted to the size and shape of the patient's shin.
It will be seen that a single standard ankle joint assembly can thus be used with a standard pre-moulded plastics member for a large variety of patients whilst at the same time each patient can be provided individually with a limb cosmetically adapted to his particular requirements by individually tailoring the sleeve.
The moulded member 4 may be of foamed plastics, for example polyurethane.
The sleeve 7 is of a plastics which is relatively rigid but sufficiently flexible to provide an acceptable fairing.

Claims (6)

  1. WHAT WE CLAIM IS:
    t. An ankle joint enclosed in a preformed moulded member of relatively soft plastics material which in turn is enclosed by a preformed sleeve of more rigid plastics shaped to provide a cosmetic fairing between the shin and the foot of the user.
  2. 2. An ankle joint comprising an assembly of structural members, a preformed moulded member of soft plastics material fitting around said assembly and a sleeve of rigid plastics material fitting over said moulded member and shaped to provide a cosmetic fairing between the shin and the foot of the user.
  3. 3. A fairing for an ankle joint, comprising a moulded member of relatively soft plastics material provided with recesses to accommodate the structural members of the joint and having an outer surface of shape approximating to the natural shape of an ankle and a sleeve of rigid plastics material enclosing the moulded member and extending upwardly above it to form a cosmetic fairing between the shin and the foot of a user.
  4. 4. An ankle joint according to either of Claims 1 or 2 in which the moulded member is foamed polyurethane.
  5. 5. A fairing for an ankle joint, according to Claim 3 in which the moulded member is of foamed polyurethane.
  6. 6. An ankle joint substantially as described with reference to the accompanying drawing.
GB4808676A 1977-11-16 1977-11-16 Fairings for ankle joints Expired GB1563246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4808676A GB1563246A (en) 1977-11-16 1977-11-16 Fairings for ankle joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4808676A GB1563246A (en) 1977-11-16 1977-11-16 Fairings for ankle joints

Publications (1)

Publication Number Publication Date
GB1563246A true GB1563246A (en) 1980-03-19

Family

ID=10447334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4808676A Expired GB1563246A (en) 1977-11-16 1977-11-16 Fairings for ankle joints

Country Status (1)

Country Link
GB (1) GB1563246A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0277175A1 (en) * 1986-07-28 1988-08-10 Ohio Willow Wood Inc Prosthetic foot.
US5139524A (en) * 1990-01-18 1992-08-18 Prosthetics Research Study Prosthetic alignment device supplementally secured by a hoop stress
US9351853B2 (en) 2008-08-18 2016-05-31 The Ohio Willow Wood Company Prosthetic foot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5139524A (en) * 1990-01-18 1992-08-18 Prosthetics Research Study Prosthetic alignment device supplementally secured by a hoop stress
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