GB1463948A - Joint endoprostheses - Google Patents

Joint endoprostheses

Info

Publication number
GB1463948A
GB1463948A GB4638675A GB4638675A GB1463948A GB 1463948 A GB1463948 A GB 1463948A GB 4638675 A GB4638675 A GB 4638675A GB 4638675 A GB4638675 A GB 4638675A GB 1463948 A GB1463948 A GB 1463948A
Authority
GB
United Kingdom
Prior art keywords
less
ceramic
joint
nov
density
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
GB4638675A
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of GB1463948A publication Critical patent/GB1463948A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
    • 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
    • A61F2/32—Joints for the hip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02—Inorganic materials
    • A61L27/10—Ceramics or glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Public Health (AREA)
  • Ceramic Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

1463948 Joint endoprostheses SULZER BROS Ltd 10 Nov 1975 [8 Nov 1974] 46386/75 Heading A5R In a joint endoprosthesis, such as a total hip-joint implant prosthesis, in which the surfaces of two parts of the prosthesis move on one another under load with a sliding and rubbing action, one of the two rubbing surfaces is made of a ceramic substance and the other of a plastics. The ceramic substance preferably has a density of more than 3.96 g/cm<3>, a grain size of less than 10Ám, a porosity of less than 0.5% and a Vickers hardness of 600 to 3500 kp/mm<2> and the ceramic surface preferably has an arithmetical mean roughness of less than 1 Ám. Suitable ceramic substances are Al2O3' TiO2, Cr2O3' Si3N4, SiC and B,C, the first of these being particularly suitable. The plastics material is preferably a fluorine-free thermoplastics, high-density or ultra-high molecular weight polyethylene being particularly suitable.
GB4638675A 1974-11-08 1975-11-10 Joint endoprostheses Expired GB1463948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1495374A CH572335A5 (en) 1974-11-08 1974-11-08

Publications (1)

Publication Number Publication Date
GB1463948A true GB1463948A (en) 1977-02-09

Family

ID=4405147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4638675A Expired GB1463948A (en) 1974-11-08 1975-11-10 Joint endoprostheses

Country Status (10)

Country Link
JP (1) JPS5170996A (en)
AT (1) AT332966B (en)
BE (1) BE835032A (en)
CH (1) CH572335A5 (en)
DE (1) DE2454013A1 (en)
FR (1) FR2290181A1 (en)
GB (1) GB1463948A (en)
IT (1) IT1049043B (en)
NL (1) NL161056C (en)
SE (1) SE404485B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017936A2 (en) * 1979-04-11 1980-10-29 Kanebo, Ltd. Compositions of restorative material especially suitable for dental filling material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055862A (en) * 1976-01-23 1977-11-01 Zimmer Usa, Inc. Human body implant of graphitic carbon fiber reinforced ultra-high molecular weight polyethylene
DE2914737C3 (en) * 1979-04-11 1981-12-10 Feldmühle AG, 4000 Düsseldorf Femoral head cap endoprosthesis
JPS5991956A (en) * 1982-11-19 1984-05-26 京セラ株式会社 Artificial finger joint
US4840630A (en) * 1986-06-05 1989-06-20 Kyocera Corporation Artificial hip joint
US6682567B1 (en) 2001-09-19 2004-01-27 Biomet, Inc. Method and apparatus for providing a shell component incorporating a porous ingrowth material and liner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214460B1 (en) * 1973-01-18 1976-05-14 Ceraver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017936A2 (en) * 1979-04-11 1980-10-29 Kanebo, Ltd. Compositions of restorative material especially suitable for dental filling material
EP0017936A3 (en) * 1979-04-11 1982-01-06 Kanebo Ltd. Resin-forming material, implant material and compositions for restorative material suitable for medical or dental use
EP0092260A1 (en) * 1979-04-11 1983-10-26 Kanebo, Ltd. A composition of restorative material

Also Published As

Publication number Publication date
NL161056B (en) 1979-08-15
JPS5170996A (en) 1976-06-19
NL7512435A (en) 1976-05-11
SE404485B (en) 1978-10-09
IT1049043B (en) 1981-01-20
BE835032A (en) 1976-04-30
FR2290181A1 (en) 1976-06-04
FR2290181B1 (en) 1981-09-25
CH572335A5 (en) 1976-02-13
NL161056C (en) 1980-01-15
ATA913374A (en) 1976-02-15
SE7512331L (en) 1976-05-10
DE2454013A1 (en) 1976-05-20
AT332966B (en) 1976-10-25

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Legal Events

Date Code Title Description
PS Patent sealed
433D Application made for revocation (sect. 33/1949)
433G Case decided by the comptroller ** application refused (sect. 33/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19951109