IE36395L - Endoprosthetic knee joint device. - Google Patents

Endoprosthetic knee joint device.

Info

Publication number
IE36395L
IE36395L IE720727A IE72772A IE36395L IE 36395 L IE36395 L IE 36395L IE 720727 A IE720727 A IE 720727A IE 72772 A IE72772 A IE 72772A IE 36395 L IE36395 L IE 36395L
Authority
IE
Ireland
Prior art keywords
portions
natural
bridge
femoral
bearing surfaces
Prior art date
Application number
IE720727A
Other versions
IE36395B1 (en
Original Assignee
Nat Res Dev
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 Nat Res Dev filed Critical Nat Res Dev
Publication of IE36395L publication Critical patent/IE36395L/en
Publication of IE36395B1 publication Critical patent/IE36395B1/en

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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/30—Use of anatomy in making a mold or using said mold

Landscapes

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

1395896 Endoprosthetic knee joints NATIONAL RESEARCH DEVELOPMENT CORP 25 May 1972 [1 June 1971] 18278/71 Heading A5R An endoprosthetic knee joint device has a femoral part 10, Fig. 11, having portions 11, 12 defining respective elongate bearing surfaces of longitudinally convex form, portions 11, 12 being joined by a bridge 13 so that a slot extends between portions 11, 12 from corresponding ends thereof, and a tibial part, Fig. 17, having portions 21, 22 each defining a bearing surface for engaging a said convex bearing surface of the part 10, portions 21, 22 being interconnected by a bridge 23 so that a slot extends between portions 21, 23 from bridge 23 to corresponding edges of portions 21, 22. In use the .bridges are located anteriorly with portions 11, 12, 21, 22 extending posteriorly therefrom and with the natural cruciate ligaments passing through said slots. The convex bearing surfaces are preferably shaped to conform closely to the natural femoral condyles. The bearing surfaces of portions 21, 22 are elongate and of generally dished form longitudintally and laterally, so that one pair of corresponding ends closely conform to the surface shapes of the anterior portions of the natural merisci when the joint is at or near zero flexion, and opposite ends conform to the natural menisii shape when the joint is at or near maximum flexion and the intermediate portions of said bearing surfaces smoothly join said end portions. The bridge 23 is formed as a ridge, and the bridge 13 which is formed as a trough and acts as a bearing surface for the patella. The components may be attached to the natural femur and tibia using acrylic resin or other gap-filling agents or cements, the back surface of the femoral component being provided with pegs 14 and/or webs and the back surface of the tibial component being provided with dovetail grooves 24 and central plateaus 26 to assist such securement. The femoral and tibial components may be made of metal, such as chrome/cobalt alloy, and of plastics material, such as polyethylene, respectively by casting in moulds made by using the natural bones. [GB1395896A]
IE727/72A 1971-06-01 1972-05-30 Endoprosthetic knee joint devices IE36395B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1827871A GB1395896A (en) 1971-06-01 1971-06-01 Endoprosthetic knee joint devices

Publications (2)

Publication Number Publication Date
IE36395L true IE36395L (en) 1972-12-01
IE36395B1 IE36395B1 (en) 1976-10-27

Family

ID=10109721

Family Applications (1)

Application Number Title Priority Date Filing Date
IE727/72A IE36395B1 (en) 1971-06-01 1972-05-30 Endoprosthetic knee joint devices

Country Status (6)

Country Link
US (1) US3816855A (en)
CH (1) CH548203A (en)
DE (1) DE2226541C2 (en)
FR (1) FR2141126A5 (en)
GB (1) GB1395896A (en)
IE (1) IE36395B1 (en)

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
GB1395896A (en) 1975-05-29
DE2226541A1 (en) 1972-12-14
US3816855A (en) 1974-06-18
CH548203A (en) 1974-04-30
IE36395B1 (en) 1976-10-27
FR2141126A5 (en) 1973-01-19
DE2226541C2 (en) 1983-04-28

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