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GB2069338A - Hip joint prosthesis - Google Patents

Hip joint prosthesis Download PDF

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Publication number
GB2069338A
GB2069338A GB8101379A GB8101379A GB2069338A GB 2069338 A GB2069338 A GB 2069338A GB 8101379 A GB8101379 A GB 8101379A GB 8101379 A GB8101379 A GB 8101379A GB 2069338 A GB2069338 A GB 2069338A
Authority
GB
United Kingdom
Prior art keywords
insert
cylindrical cup
cup
hip joint
joint
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.)
Granted
Application number
GB8101379A
Other versions
GB2069338B (en
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.)
Schuett & Grundei Med Tech
Original Assignee
Schuett & Grundei Med Tech
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 Schuett & Grundei Med Tech filed Critical Schuett & Grundei Med Tech
Publication of GB2069338A publication Critical patent/GB2069338A/en
Application granted granted Critical
Publication of GB2069338B publication Critical patent/GB2069338B/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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • 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
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
    • 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
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/30403—Longitudinally-oriented cooperating ribs and grooves on mating lateral surfaces of a mainly longitudinal connection
    • 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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • A61F2002/30864—Microthreads
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • A61F2002/30873—Threadings machined on non-cylindrical external surfaces
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3429—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line
    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3453—Acetabular cups having a non-hemispherical convex outer surface, e.g. quadric-shaped
    • A61F2002/3462—Acetabular cups having a non-hemispherical convex outer surface, e.g. quadric-shaped having a frustoconical external shape, e.g. entirely frustoconical
    • 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
    • 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
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (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

A joint socket for the spherical head of a hip joint endoprosthesis, comprises a rigid, wear-resistant plastics material insert arranged to receive the spherical head of an artificial hip joint within a spherical recess provided therein. This insert is located in a cylindrical cup arranged to be anchored in the pelvis of a patient, and is axially displaceable to a limited degree against an elastic buffer in the cup, which latter is made of metal or a ceramic material. Preferably the elastic buffer is in the form of a cylindrical disc and is incorporated in the cylindrical cup between a base thereof and the insert, and the outer peripheral rim of the insert is provided with a radial flange which is axially spaced from the rim of the cylindrical cup. <IMAGE>

Description

SPECIFICATION Improvements in or relating to joint sockets for the spherical head of a hip joint prosthesis Upon replacing a hip joint by a joint endoprosthesis, the procedure commonly applied consists on the one hand in replacing the natural ball joint socket or acetabulum in the pelvis of the patient by a socket of plastics material, ceramic material or metal and on the other hand in replacing the spherical head of the thigh bone or femur by a spherical head of metal, ceramic or analogous material, and in bringing these two parts into engagement.In the case of known hip joint endoprostheses, the spherical head of the joint prosthesis is placed in hard and direct contact within the inset joint socket of the prosthesis, so that the vertical strains arising when the patient is walking or running are borne directly and comparatively rigidly by the joint prosthesis, which must obviously lead to wear on the replacement joint and also implies jolting of the patient.
It is an object of the invention to eliminate or to reduce as far as possible the attrition which it has hitherto been usual to expect.
This problem is resolved in accordance with the invention by installing a rigid, wear-resistant plastics material insert which receives the spherical head of an artificial hip joint within a spherical recess, in a cylindrical cup which is to be anchored in the pelvis of the patient, in such manner that it is axially displaceable to a limited degree against an elastic buffer, said cup being of metal or ceramic material.
As a result of this arrangement, jolts engendered when the patient treads on the ground are taken up elastically by the artificial hip joint replacing the natural joint, since the spherical head may now thrust the joint socket or the plastics material insert against the buffer in elastically yielding manner and compress the latter resiliently at every step taken by the patient, so that the shock of each step that the patient takes is absorbed practically elastically within the joint and the contact surfaces of the artificial hip joint undergo but very little attritive stress, so that a substantially increased service life of the artificial joints may be expected. Apart from this, every step is now borne in smooth and elastic manner by the patient, and the walking or running motion is thereby also eased decisively.
In order that the invention may be more clearly understood, reference will now be made to the single figure of the accompanying drawing which shows an axial section of a joint socket of an artificial hip joint according thereto by way of example.
Referring now to the drawing, in the embodiment shown, a joint socket intended for the spherical head of a hip joint femur prosthesis comprises a cylindrical cup 1 having a delimiting base 2, consisting of a metal, that is compatible with human body tissue and intended to be anchored within a patient's pelvis. For perfect anchoring, the cup 1 is externally roughened e.g.
by grooves or screw threads as shown. An insert 3 of a suitable plastics material and having an approximately hemispherical recess 4 is mounted in the cup 1, 2, in such a manner that it is axially displaceable to a limited degree, that is to say so that the substantially rigid insert 3 bears against a buffer 5 of elastically yielding material advantageously consisting of silicone. To limit the axial displacement of the insert 3, stops are incorporated, e.g. by providing the insert 3 at the rim of the recess 4 with outwardly directed projections or with a radially-projecting flange 6 which is spaced a few millimetres from the terminal edge of a flange 7 of the cylindrical cup 1, corresponding to the compressibility of the elastic buffer 5 and to the degree of axial displacement of the insert 3 in the cylindrical cup 1, 2.
In order that the insert 3 cannot emerge from the cylindrical cup 1, 2 and cannot be lost during transport for example, its external periphery is provided with individual circumferentially distributed small projections or with a slightly projecting encircling ring of flange 8, which engages in a groove 9 in the inner wall of the cup 1. The groove 9 also has a minimum width equal to the degree of axial displacement of the insert 3 in the cup 1. Finally, for axial guiding of the parts 1 and 3 into each other, axially parallel guiding pins 10 may be incorporated in the flanges 6 and 7, which are secured either in the flange 6 or in the flange 7. It is also possible to provide the guides 10 inwardly, as shown by the dotted lines.
The joint socket described is inset into an excised recess of the pelvic bone and anchored therein in any manner usual in the art, and the spherical head of an artificial hip joint femur is engaged in the spheroidal recess 4. The patient may subsequently walk in a springy manner by virtue of the joint socket, because with every step on the ground, the buffer 5 is compressed elastically by his body weight and expands again afterwards, so that a more protracted service life of the joint socket or of the entire artificial hip joint becomes possible.

Claims (4)

1. A joint socket for the spherical head of a hip joint endoprosthesis, comprising a rigid, wear resistant plastics material insert arranged to receive the spherical head of an artificial hip joint within a spherical recess provided therein, the insert being located in a cylindrical cup arranged to be anchored in the pelvis of a patient, and being axially displaceable to a limited degree against an elastic buffer in the cup, the latter being made from metal or a ceramic material.
2. A joint socket as claimed in claim 1 , wherein the elastic buffer is in the form of a cylindrical disc and is incorporated in the cylindrical cup between a base thereof and the insert, and wherein the outer peripheral rim of the insert is provided with a radial flange which is axially spaced from the aperture rim of the cylindrical cup.
3. A joint socket as claimed in claim 1 or 2, wherein the periphery of the plastics material insert is provided with distributed projection means which engage in a groove in the inner wall of the cylindrical cup, the width of the groove being at least equal to the compressibility of the buffer and the degree of axial displacement of the insert within the cylindrical cup.
4. A joint socket substantially as hereinbefore described with reference to the accompanying drawings.
GB8101379A 1980-01-24 1981-01-16 Hip joint prosthesis Expired GB2069338B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803002443 DE3002443A1 (en) 1980-01-24 1980-01-24 JOINT PAN FOR THE BALL HEAD OF A HIP JOINT ENDOPROTHESIS

Publications (2)

Publication Number Publication Date
GB2069338A true GB2069338A (en) 1981-08-26
GB2069338B GB2069338B (en) 1983-08-10

Family

ID=6092815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8101379A Expired GB2069338B (en) 1980-01-24 1981-01-16 Hip joint prosthesis

Country Status (5)

Country Link
JP (1) JPS56139745A (en)
CH (1) CH648203A5 (en)
DE (1) DE3002443A1 (en)
FR (1) FR2474308A1 (en)
GB (1) GB2069338B (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126096A (en) * 1982-06-22 1984-03-21 George Kenneth Mckee Improvements in prosthesis
FR2548012A1 (en) * 1983-06-15 1985-01-04 Saint Etienne Ecole Nale Ingen HIP PROSTHESIS AND CORRESPONDING EQUIPMENT FOR ITS IMPLEMENTATION
GB2159416A (en) * 1984-06-01 1985-12-04 Raymond G Tronzo Adjustable acetabular cup prosthesis as part of a total cup replacement system
WO1986002261A1 (en) * 1984-10-17 1986-04-24 Giuliano Sostegni Hip prosthesis with a member for damping mechanical stresses
US4798610A (en) * 1982-09-29 1989-01-17 Osteonics Corp. Prosthetic implant device
EP0337513A3 (en) * 1984-04-14 1989-10-25 Howmedica International, Inc. Zweigniederlassung Kiel Acetabular cup prothesis
EP0359700A1 (en) * 1988-08-24 1990-03-21 GebràœDer Sulzer Aktiengesellschaft Two-piece acetabular cup
EP0444382A1 (en) * 1990-03-01 1991-09-04 SULZER Medizinaltechnik AG Cementless metallic artificial hip cup
GB2306330A (en) * 1995-10-24 1997-05-07 Corin Medical Ltd Acetabular cup
US6248132B1 (en) * 1999-10-29 2001-06-19 Charles C. Harris Hip replacement prosthesis
US7572295B2 (en) 2001-12-04 2009-08-11 Active Implants Corporation Cushion bearing implants for load bearing applications
US7854768B2 (en) 2006-01-20 2010-12-21 Zimmer Technology, Inc. Shoulder arthroplasty system
US8075628B2 (en) 2002-04-25 2011-12-13 Zimmer, Inc. Modular bone implant, tools, and method
US8226728B2 (en) 2006-08-04 2012-07-24 Ceramtec Gmbh Insertion of vibration-damping elements in prosthetic systems for the manipulation and damping of natural frequencies
CN102686187A (en) * 2009-09-28 2012-09-19 托马斯·格拉德尔 Method for manufacturing a prosthetic acetabulum
US8608805B2 (en) 2005-09-16 2013-12-17 Zimmer Gmbh Insert and shell of a joint ball receptacle
US8690951B2 (en) 2005-11-18 2014-04-08 Zimmer, Gmbh Base platform for an artificial joint

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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GB2126096A (en) * 1982-06-22 1984-03-21 George Kenneth Mckee Improvements in prosthesis
US4798610A (en) * 1982-09-29 1989-01-17 Osteonics Corp. Prosthetic implant device
FR2548012A1 (en) * 1983-06-15 1985-01-04 Saint Etienne Ecole Nale Ingen HIP PROSTHESIS AND CORRESPONDING EQUIPMENT FOR ITS IMPLEMENTATION
EP0337513A3 (en) * 1984-04-14 1989-10-25 Howmedica International, Inc. Zweigniederlassung Kiel Acetabular cup prothesis
GB2159416A (en) * 1984-06-01 1985-12-04 Raymond G Tronzo Adjustable acetabular cup prosthesis as part of a total cup replacement system
WO1986002261A1 (en) * 1984-10-17 1986-04-24 Giuliano Sostegni Hip prosthesis with a member for damping mechanical stresses
EP0359700A1 (en) * 1988-08-24 1990-03-21 GebràœDer Sulzer Aktiengesellschaft Two-piece acetabular cup
US4961748A (en) * 1988-08-24 1990-10-09 Sulzer Brothers Limited Sleeve for an acetabulum
CH675823A5 (en) * 1988-08-24 1990-11-15 Sulzer Ag
EP0444382A1 (en) * 1990-03-01 1991-09-04 SULZER Medizinaltechnik AG Cementless metallic artificial hip cup
US5080678A (en) * 1990-03-01 1992-01-14 Sulzer Brothers Limited Artificial acetabulum
GB2306330A (en) * 1995-10-24 1997-05-07 Corin Medical Ltd Acetabular cup
US6248132B1 (en) * 1999-10-29 2001-06-19 Charles C. Harris Hip replacement prosthesis
US7572295B2 (en) 2001-12-04 2009-08-11 Active Implants Corporation Cushion bearing implants for load bearing applications
EP2145604A1 (en) 2001-12-04 2010-01-20 Active Implants Corporation Cushion bearing implants for load bearing applications
US8814946B2 (en) 2001-12-04 2014-08-26 Active Implants Corporation Cushion bearing implants for load bearing applications
US8075628B2 (en) 2002-04-25 2011-12-13 Zimmer, Inc. Modular bone implant, tools, and method
US8608805B2 (en) 2005-09-16 2013-12-17 Zimmer Gmbh Insert and shell of a joint ball receptacle
US8690951B2 (en) 2005-11-18 2014-04-08 Zimmer, Gmbh Base platform for an artificial joint
US7854768B2 (en) 2006-01-20 2010-12-21 Zimmer Technology, Inc. Shoulder arthroplasty system
US8940054B2 (en) 2006-01-20 2015-01-27 Zimmer Technology, Inc. Shoulder arthroplasty system
US9283075B2 (en) 2006-01-20 2016-03-15 Zimmer, Inc. Shoulder arthroplasty system
US9770334B2 (en) 2006-01-20 2017-09-26 Zimmer, Inc. Shoulder arthroplasty system
US10383735B2 (en) 2006-01-20 2019-08-20 Zimmer, Inc. Shoulder arthroplasty system
US11298234B2 (en) 2006-01-20 2022-04-12 Zimmer, Inc. Shoulder arthroplasty system
US8226728B2 (en) 2006-08-04 2012-07-24 Ceramtec Gmbh Insertion of vibration-damping elements in prosthetic systems for the manipulation and damping of natural frequencies
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Also Published As

Publication number Publication date
GB2069338B (en) 1983-08-10
JPS56139745A (en) 1981-10-31
CH648203A5 (en) 1985-03-15
FR2474308A1 (en) 1981-07-31
DE3002443A1 (en) 1981-08-06
FR2474308B1 (en) 1985-03-29

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