DE19629322A1 - Prosthetic ball-and-socket joint - Google Patents

Prosthetic ball-and-socket joint

Info

Publication number
DE19629322A1
DE19629322A1 DE19629322A DE19629322A DE19629322A1 DE 19629322 A1 DE19629322 A1 DE 19629322A1 DE 19629322 A DE19629322 A DE 19629322A DE 19629322 A DE19629322 A DE 19629322A DE 19629322 A1 DE19629322 A1 DE 19629322A1
Authority
DE
Germany
Prior art keywords
ball head
ball
connecting pin
hip joint
prosthesis
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.)
Withdrawn
Application number
DE19629322A
Other languages
German (de)
Inventor
Wilfried Von Chamier
Hartmut Dipl Ing Kaelberer
Hans-Georg Dipl Ing Pfaff
Herbert Dr Richter
Gerd Dr Willmann
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.)
Cerasiv GmbH Innovatives Keramik Engineering
Original Assignee
Cerasiv GmbH Innovatives Keramik Engineering
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 Cerasiv GmbH Innovatives Keramik Engineering filed Critical Cerasiv GmbH Innovatives Keramik Engineering
Priority to DE19629322A priority Critical patent/DE19629322A1/en
Publication of DE19629322A1 publication Critical patent/DE19629322A1/en
Withdrawn legal-status Critical Current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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • 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
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/367—Proximal or metaphyseal parts of shafts
    • 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
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
    • 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
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
    • 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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3611—Heads or epiphyseal parts of femur
    • 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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • 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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3652—Connections of necks to shafts
    • 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
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00179—Ceramics or ceramic-like structures

Abstract

The prosthesis is for a human hip joint. The ball part (1) of the joint has a shaft or tang (2) which fits into the marrow cavity or an artificial bore (5) at the end of the femur (3). The tang may have a square-cut end and may be slightly tapered. The ball fits into a socket (4) which is firmly anchored in the bony structure of the pelvis.

Description

Die Erfindung betrifft eine Hüftgelenkendoprothese nach dem Oberbegriff des Anspruchs 1.The invention relates to a hip joint endoprosthesis according to the preamble of Claim 1.

Stand der Technik ist der modulare Aufbau der Femurkomponente einer Hüftgelenkendoprothese und zwar in der Form, daß der Schaft einen metallischen Zapfen hat, auf den eine Kugel aufgesteckt wird, die eine entsprechende konische Bohrung aufweist. Dieses Konzept wird sowohl für metallische als auch für keramische Kugelköpfe seit 20 Jahren erfolgreich eingesetzt und hat sich klinisch bewährt (siehe z. B. Mat.- wiss. u. Werkstofftech. 24, 315-319 (1993)).State of the art is the modular structure of the femoral component Hip joint endoprosthesis in the form that the shaft has a metallic Has a pin on which a ball is placed, which has a corresponding conical Has bore. This concept is used for both metallic and Ceramic ball heads have been used successfully for 20 years and has been clinically proven proven (see e.g. Mat.-Wiss. u. Werkstofftech. 24, 315-319 (1993)).

Standardmäßig werden heute Kugelköpfe verwendet, die einen Durchmesser von 28 mm oder 32 mm haben.Ball heads with a diameter of 28 are used as standard today mm or 32 mm.

Das oben skizzierte Konzept läßt sich bei Kugelköpfen mit Durchmessern unterhalb von 28 mm kaum realisieren, weil die Wandstärke der keramischen Kugelköpfe dann so dünn wird, daß die Bruchwahrscheinlichkeit erheblich ansteigt. Kugelköpfe mit einer derartig dünnen Wandstärke können nicht mehr als sicher bezeichnet werden.The concept outlined above can be used for ball heads with diameters below of 28 mm can hardly be realized because the wall thickness of the ceramic ball heads then becomes so thin that the probability of breakage increases considerably. Ball heads with Such a thin wall can no longer be called safe.

Will man die Vorteile keramischer Kugelköpfe - niedrige Reibung und niedriger Verschleiß - weiterhin nutzen, dann muß man ein anderes Konzept wählen.If you want the advantages of ceramic ball heads - low friction and lower Wear - continue to use, then you have to choose a different concept.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Hüftgelenkendoprothese nach dem Oberbegriff des Anspruchs 1 so zu verbessern, daß auch Kugelköpfe mit geringerem Durchmesser verwendet werden können.The invention is therefore based on the object of a hip joint endoprosthesis to improve the preamble of claim 1 so that ball heads with smaller diameter can be used.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß im Prothesenschaft eine Bohrung eingebracht ist und der Kugelkopf mit einem Anschlußzapfen versehen ist, der in die Bohrung des Prothesenschaftes eingesetzt wird. Hierdurch können auch Kugelköpfe mit geringerem Durchmesser ohne Bruchgefahr im Prothesenschaft verankert werden. According to the invention, this object is achieved in that a Hole is made and the ball head is provided with a connecting pin, which is inserted into the bore of the prosthesis socket. This can also Ball heads with a smaller diameter without risk of breakage in the prosthesis socket be anchored.  

In bevorzugter Ausführungsform weisen die Bohrung im Prothesenschaft und der Anschlußzapfen des Kugelkopfes eine zueinander passende konische Form auf. Vorteilhafterweise sind der Kugelkopf und der Anschlußzapfen einstückig hergestellt.In a preferred embodiment, the bore in the prosthesis socket and Spigot of the ball head has a matching conical shape. The ball head and the connecting pin are advantageously in one piece produced.

Das Material der Kugelköpfe kann Kunststoff, Metall oder Keramik sein. Besonders vorteilhaft ist es, den Kugelkopf mit dem Anschlußzapfen aus Keramik herzustellen. Der Prothesenschaft besteht bevorzugt aus Metall.The material of the ball heads can be plastic, metal or ceramic. Especially It is advantageous to manufacture the ball head with the connecting pin made of ceramic. The prosthesis socket is preferably made of metal.

Weitere Merkmale der Erfindung ergeben sich aus der Figur, die nachfolgend beschrieben ist.Further features of the invention emerge from the figure below is described.

Mit dem Bezugszeichen 3 ist ein Prothesenschaft aus Metall bezeichnet, der im Oberschenkelknochen verankert ist (nicht gezeigt). An der zum Beckenknochen gewandten Seite ist in diesem Prothesenschaft 3 eine konisch geformte Bohrung 5 eingebracht, in die ein Anschlußzapfen 2 eines Kugelkopfes 1 eingesetzt ist. Der Kugelkopf 1 und der Anschlußzapfen 2 sind einstückig aus Keramik hergestellt, wobei der Anschlußzapfen 2 eine konische Form aufweist, die zu der konischen Form der Bohrung 5 paßt. Der Kugelkopf 1 ist, wie üblich, in eine Pfanne oder einen Pfanneneinsatz 4 eingesetzt, der im Beckenknochen verankert ist. Der Pfanneneinsatz 4 ist in der Zeichnung nur angedeutet. In der Regel ist er zweiteilig aus einer Innenschale und einer Außenschale aufgebaut. Durch die Länge des Anschlußzapfens 2 kann der Abstand des Pfanneneinsatzes 4 zum Prothesenschaft 3 eingestellt werden.Reference number 3 denotes a prosthesis socket made of metal, which is anchored in the thigh bone (not shown). At the side facing the pelvic bone side a conically shaped bore 5 is introduced into this prosthesis stem 3 is inserted in which a terminal pin 2 of a ball head. 1 The ball head 1 and the connecting pin 2 are made in one piece from ceramic, wherein the connecting pin 2 has a conical shape that matches the conical shape of the bore 5 . The ball head 1 is, as usual, inserted into a pan or pan insert 4 , which is anchored in the pelvic bone. The pan insert 4 is only hinted at in the drawing. As a rule, it is built in two parts from an inner shell and an outer shell. The length of the connecting pin 2 allows the distance between the socket insert 4 and the prosthesis socket 3 to be adjusted.

Claims (4)

1. Hüftgelenkendoprothese mit einem im Oberschenkelknochen verankerten Prothesenschaft (3), einem mit dem Prothesenschaft (3) fest verbundenen Kugelkopf (1) und einer Pfanne bzw. einem Pfanneneinsatz (4), der im Beckenknochen verankert ist, dadurch gekennzeichnet, daß im Prothesenschaft (3) eine Bohrung (5) eingebracht ist und der Kugelkopf (1) mit einem Anschlußzapfen (2) versehen ist, der in die Bohrung (5) des Prothesenschafts (3) eingesetzt wird.1. hip joint endoprosthesis with an anchored in the femur prosthesis shaft (3), a rigidly connected to the prosthesis shaft (3) ball head (1) and a socket or a socket insert (4) which is anchored in the pelvic bone, characterized in that the prosthesis stem ( 3 ) a hole ( 5 ) is made and the ball head ( 1 ) is provided with a connecting pin ( 2 ) which is inserted into the hole ( 5 ) of the prosthesis shaft ( 3 ). 2. Hüftgelenkendoprothese nach Anspruch 1, dadurch gekennzeichnet, daß die Bohrung (5) im Prothesenschaft (3) und der Anschlußzapfen (2) des Kugelkopfes (1) eine zueinander passende konische Form aufweisen.2. Hip joint endoprosthesis according to claim 1, characterized in that the bore ( 5 ) in the prosthesis socket ( 3 ) and the connecting pin ( 2 ) of the ball head ( 1 ) have a matching conical shape. 3. Hüftgelenkendoprothese nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kugelkopf (1) und der Anschlußzapfen (2) einstückig hergestellt sind.3. hip joint endoprosthesis according to claim 1 or 2, characterized in that the ball head ( 1 ) and the connecting pin ( 2 ) are made in one piece. 4. Hüftgelenkendoprothese nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kugelkopf (1) mit dem Anschlußzapfen (2) aus Keramik besteht.4. Hip joint endoprosthesis according to one of claims 1 to 3, characterized in that the ball head ( 1 ) with the connecting pin ( 2 ) consists of ceramic.
DE19629322A 1996-06-05 1996-07-20 Prosthetic ball-and-socket joint Withdrawn DE19629322A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19629322A DE19629322A1 (en) 1996-06-05 1996-07-20 Prosthetic ball-and-socket joint

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622507 1996-06-05
DE19629322A DE19629322A1 (en) 1996-06-05 1996-07-20 Prosthetic ball-and-socket joint

Publications (1)

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DE19629322A1 true DE19629322A1 (en) 1997-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904126A1 (en) * 1999-02-03 2000-08-10 Ceramtec Ag Hip endoprosthesis in which at least the articulation surface of the femoral head is replaced
EP1356795A1 (en) * 2002-04-23 2003-10-29 ESKA Implants GmbH & Co. Set for constructing a modular implant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115875A (en) * 1976-04-26 1978-09-26 Andre Rambert Hip prosthesis
EP0017743A1 (en) * 1979-03-08 1980-10-29 Metallwerk Plansee Gesellschaft M.B.H. Joint prosthesis
US4520511A (en) * 1981-10-26 1985-06-04 Paribelli Gianezio Hip prosthesis with expanding femoral component
EP0363019A2 (en) * 1988-09-09 1990-04-11 Biomet Limited Prosthetic components
DE3542016C2 (en) * 1985-11-28 1991-05-08 Orthoplant Endoprothetik Gmbh, 2800 Bremen, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115875A (en) * 1976-04-26 1978-09-26 Andre Rambert Hip prosthesis
EP0017743A1 (en) * 1979-03-08 1980-10-29 Metallwerk Plansee Gesellschaft M.B.H. Joint prosthesis
US4520511A (en) * 1981-10-26 1985-06-04 Paribelli Gianezio Hip prosthesis with expanding femoral component
DE3542016C2 (en) * 1985-11-28 1991-05-08 Orthoplant Endoprothetik Gmbh, 2800 Bremen, De
EP0363019A2 (en) * 1988-09-09 1990-04-11 Biomet Limited Prosthetic components

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904126A1 (en) * 1999-02-03 2000-08-10 Ceramtec Ag Hip endoprosthesis in which at least the articulation surface of the femoral head is replaced
EP1356795A1 (en) * 2002-04-23 2003-10-29 ESKA Implants GmbH & Co. Set for constructing a modular implant

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