DE4405447B4 - hip prosthesis - Google Patents
hip prosthesis Download PDFInfo
- Publication number
- DE4405447B4 DE4405447B4 DE4405447A DE4405447A DE4405447B4 DE 4405447 B4 DE4405447 B4 DE 4405447B4 DE 4405447 A DE4405447 A DE 4405447A DE 4405447 A DE4405447 A DE 4405447A DE 4405447 B4 DE4405447 B4 DE 4405447B4
- Authority
- DE
- Germany
- Prior art keywords
- pin
- contact surface
- ball head
- ball
- neck lengths
- 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 - Fee Related
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
- 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
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30321—The prosthesis having different structural features at different locations within the same prosthesis differing in roughness
-
- 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
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/365—Connections of heads to 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
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0025—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in roughness
-
- 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
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
Hüftgelenkprothese mit einem in den Femur einsetzbaren metallischen Schaft und mit einem mit diesem einstückig verbundenen Zapfen (1), auf dem ein keramischer Kugelkopf (2) mit einer Ausnehmung aufgesteckt ist und mit einer umlaufenden konischen Kontaktfläche (3) zwischen Zapfen (1) und Kugelkopf (2), dadurch gekennzeichnet, daß die Kontaktfläche (3) durch eine spezielle Oberflächenstruktur (7) des Zapfens (1) gebildet ist, derart, daß der Zapfen (1) an seinem zum Kugelkopf (2) gewandten Ende eine Tiefe der Struktur von größer als 100 μm aufweist, die kontinuierlichen Richtung bis zum Ende der Kontaktfläche (3) auf einen Wert nahe oder gleich Null abnimmt, um anschließend wieder kontinuierlich auf einen Wert größer als 100 μm am Ende der Kontaktfläche anzusteigen.hip prosthesis with a usable in the femur metallic shaft and with one with this one piece connected pin (1) on which a ceramic ball head (2) with a recess is plugged and with a circumferential conical contact area (3) between pin (1) and ball head (2), characterized that the contact area (3) by a special surface structure (7) of the pin (1) is formed, such that the pin (1) at its to the ball head (2) end facing a depth of the structure of greater than 100 μm, the continuous direction to the end of the contact surface (3) decreases to a value close to or equal to zero, and then again continuously to a value greater than 100 μm on End of the contact area to increase.
Description
Die Erfindung betrifft eine Hüftgelenkprothese nach dem Oberbegriff des Anspruchs 1.The The invention relates to a hip joint prosthesis according to the preamble of claim 1.
Aus der DE-C2-24 51 275 oder DE-T2-690 00 445 ist eine gattungsgemäße Hüftgelenkprothese mit einem in den Femur einsetzbaren metallischen Schaft und einem mit diesem einstückig verbundenen Zapfen bekannt. Eine keramische Hüftgelenkkugel bzw. ein keramischer Kugelkopf wird auf das konisch geformte Ende des Zapfens aufgesteckt. Die keramische Hüftgelenkkugel weist hierzu eine Ausnehmung mit einer konischen Bohrung auf. Durch diese Ausgestaltung ist eine umlaufende konische Kontaktfläche zwischen Zapfen und Hüftgelenkkugel bzw. Kugelkopf geschaffen.Out DE-C2-24 51 275 or DE-T2-690 00 445 is a generic hip joint prosthesis with a usable in the femur metallic stem and a with this one piece connected pin known. A ceramic hip ball or a ceramic Ball head is attached to the conical shaped end of the pin. The ceramic hip joint ball has for this purpose a recess with a conical bore. Through this Design is a circumferential conical contact surface between Pin and hip ball or Ball head created.
Keramische Kugelköpfe müssen strengen, z.B. von der FDA (Food and Drug Administration), gestellten Anforderungen bezüglich ihrer mechanischen Belastbarkeit genügen.ceramic ball heads have to strict, e.g. by the FDA (Food and Drug Administration) Requirements regarding satisfy their mechanical strength.
Um diesen strengen Anforderungen zu entsprechen, ist es bekannt, den Konuswinkel des metallischen Zapfens zwischen 5° 37' 30'' und 5° 42' 30'' und den Winkel der konischen Bohrung im keramischen Kugelkopf zwischen 5° 43' und 5° 45' zu legen.Around To meet these stringent requirements, it is known that Cone angle of the metallic pin between 5 ° 37 '30' 'and 5 ° 42' 30 '' and the angle of the conical bore in the ceramic ball head between 5 ° 43 'and 5 ° 45'.
Weltweit haben sich keramische Kugelköpfe mit einem Durchmesser von 28 mm durchgesetzt. Es gibt hierbei drei verschiedene Halslängen, nämlich kurz, mittel oder lang. Die Halslängen sind definiert als der axiale Abstand zwischen der Stirnfläche des konischen Endes des Schaftes und dem Pol der Hüftgelenkkugel bei aufgesteckter Hüftgelenkkugel. Beim Typ "kurze Halslänge" ist demnach dieser Abstand am kleinsten und beim Typ "lange Halslänge" am größten. Die Länge der Kontaktfläche, d.h. die axiale Länge der Fläche des Zapfens, die den Kugelkopf berührt, liegt
- – bei kurzen Halslängen bei 14,9 mm
- – bei mittellangen Halslängen bei 12,4 mm
- – bei langen Halslängen bei 9,8 mm
- - with short neck lengths at 14.9 mm
- - For medium-length neck lengths at 12.4 mm
- - at long neck lengths at 9.8 mm
Der Erfindung liegt die Aufgabe zugrunde, eine Hüftgelenkprothese nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, daß ein optimaler Kraftschluß zwischen Kugelkopf und Zapfen erreicht ist.Of the Invention is based on the object, a hip joint prosthesis according to the preamble of claim 1 such that an optimal adhesion between Ball head and pin is reached.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Kontaktfläche durch eine spezielle Oberflächenstruktur des Zapfens gebildet ist, derart, daß der Zapfen an seinem zum Kugelkopf gewandten Ende eine Tiefe der Struktur von größer als 100 μm aufweist, die kontinuierlichen Richtung bis zum Ende der Kontaktfläche auf einen Wert nahe oder gleich Null abnimmt um anschließend wieder kontinuierlich auf einen Wert größer als 100 μm am Ende der Kontaktfläche anzusteigen. Mit dieser Maßnahme ist einerseits die Kontaktfläche definiert und andererseits ein Spalt zwischen Zapfen und Kugelkopf unterhalb der Kontaktfläche vermieden.According to the invention this Task solved by that the contact area through a special surface structure is formed of the pin, such that the pin at its to Ball-headed end has a depth of structure greater than 100 microns, the continuous direction up to the end of the contact surface decreases a value near or equal to zero and then again continuously to a value greater than 100 μm at the end the contact surface to increase. With this measure on the one hand is the contact surface defined and on the other hand, a gap between the pin and ball head below the contact surface avoided.
In bevorzugter Ausführungsform weist die Oberflächenstruktur ein sägezahn- oder sinusförmiges Profil auf.In preferred embodiment has the surface structure a sawtooth or sinusoidal Profile on.
Bei einem Kugelkopf mit einem Durchmesser von 28 mm liegt vorteilhafterweise die Länge der Kontaktfläche
- – bei kurzen Halslängen zwischen 9 bis 12 mm,
- – bei mittellangen Halslängen zwischen 6 bis 8 mm und
- – bei langen Halslängen zwischen 5 bis 8 mm.
- - for short neck lengths between 9 to 12 mm,
- - For medium-length neck lengths between 6 to 8 mm and
- - for long neck lengths between 5 to 8 mm.
Mit diesen verkürzten Kontaktflächen konnten die Berstkräfte, d.h. die Kraft, bei denen der Kugelkopf zerbricht, wesentlich gesteigert werden.With this shortened contact surfaces could the bursting forces, i.e. the force at which the ball head breaks, significantly increased become.
Weitere Ausgestaltungen der Erfindung ergeben sich aus der Figur, die nachfolgend beschrieben wird.Further Embodiments of the invention will become apparent from the figure below is described.
Die
Figur zeigt einen erfindungsgemäßen Kugelkopf
Die
konische Bohrung
Die
Kontaktfläche
Beim
Aufsetzen des Kugelkopfes
Vorteilhafterweise
weist die Oberflächenstruktur
Wird
der Kugelkopf
Bei
einem Durchmesser der Kugelköpfe
- - bei kurzen Halslängen zwischen 9 bis 12 mm,
- – bei mittellangen Halslängen zwischen 6 bis 8 mm und
- – bei langen Halslängen zwischen 5 bis 8 mm.
- - for short neck lengths between 9 to 12 mm,
- - For medium-length neck lengths between 6 to 8 mm and
- - for long neck lengths between 5 to 8 mm.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4405447A DE4405447B4 (en) | 1994-02-21 | 1994-02-21 | hip prosthesis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4405447A DE4405447B4 (en) | 1994-02-21 | 1994-02-21 | hip prosthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4405447A1 DE4405447A1 (en) | 1995-08-24 |
DE4405447B4 true DE4405447B4 (en) | 2006-03-09 |
Family
ID=6510742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4405447A Expired - Fee Related DE4405447B4 (en) | 1994-02-21 | 1994-02-21 | hip prosthesis |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4405447B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7220283B2 (en) * | 2005-01-24 | 2007-05-22 | Exactech, Inc. | Prosthesis including a mechanism for attaching a first component to a second component |
US10136933B2 (en) | 2012-10-30 | 2018-11-27 | Zimmer, Inc. | Orthopedic connections |
EP3788991B1 (en) * | 2019-09-06 | 2023-06-28 | CeramTec GmbH | Connecting assembly of two components |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2134316A1 (en) * | 1970-07-10 | 1972-01-13 | Ceraver, Paris | Sintered clay bone prosthesis |
US4170794A (en) * | 1977-03-23 | 1979-10-16 | Rosenthal Technik Ag | Bone joint endoprosthesis |
DE2933961A1 (en) * | 1979-08-22 | 1981-03-12 | Rosenthal Technik Ag, 8672 Selb | COMPOSITE ENDOPROTHESIS FROM A METAL SHAFT AND A CERAMIC JOINT PART |
DE2451275C2 (en) * | 1974-10-29 | 1982-08-26 | Feldmühle AG, 4000 Düsseldorf | Head part of a hip joint prosthesis to be implanted |
US4964869A (en) * | 1988-06-28 | 1990-10-23 | Ceramiques Techniques Desmarquest | Assembly of a ceramic head on a metal rod for a hip prosthesis |
US5037441A (en) * | 1989-06-28 | 1991-08-06 | La Biomecanique Integree | Rotule pour prothese |
DE4035614C2 (en) * | 1990-11-09 | 1993-01-28 | Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De | |
GB2260705A (en) * | 1991-10-08 | 1993-04-28 | Kevin Hardinge | Ceramic/metal prosthesis |
DE69000445T2 (en) * | 1989-03-23 | 1993-06-03 | Desmarquest Ceramiques Tech | CERAMIC BALL HEAD WITH A SMALL DIAMETER FOR A HIP JOINT PROSTHESIS. |
DE69001147T2 (en) * | 1989-02-28 | 1993-08-12 | Osteonics Corp | THIGH HEAD ADJUSTER FOR MOUNTING DURING THE OPERATION. |
-
1994
- 1994-02-21 DE DE4405447A patent/DE4405447B4/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2134316A1 (en) * | 1970-07-10 | 1972-01-13 | Ceraver, Paris | Sintered clay bone prosthesis |
DE2451275C2 (en) * | 1974-10-29 | 1982-08-26 | Feldmühle AG, 4000 Düsseldorf | Head part of a hip joint prosthesis to be implanted |
US4170794A (en) * | 1977-03-23 | 1979-10-16 | Rosenthal Technik Ag | Bone joint endoprosthesis |
DE2933961A1 (en) * | 1979-08-22 | 1981-03-12 | Rosenthal Technik Ag, 8672 Selb | COMPOSITE ENDOPROTHESIS FROM A METAL SHAFT AND A CERAMIC JOINT PART |
US4964869A (en) * | 1988-06-28 | 1990-10-23 | Ceramiques Techniques Desmarquest | Assembly of a ceramic head on a metal rod for a hip prosthesis |
DE69001147T2 (en) * | 1989-02-28 | 1993-08-12 | Osteonics Corp | THIGH HEAD ADJUSTER FOR MOUNTING DURING THE OPERATION. |
DE69000445T2 (en) * | 1989-03-23 | 1993-06-03 | Desmarquest Ceramiques Tech | CERAMIC BALL HEAD WITH A SMALL DIAMETER FOR A HIP JOINT PROSTHESIS. |
US5037441A (en) * | 1989-06-28 | 1991-08-06 | La Biomecanique Integree | Rotule pour prothese |
DE4035614C2 (en) * | 1990-11-09 | 1993-01-28 | Friedrichsfeld Ag Keramik- Und Kunststoffwerke, 6800 Mannheim, De | |
GB2260705A (en) * | 1991-10-08 | 1993-04-28 | Kevin Hardinge | Ceramic/metal prosthesis |
Also Published As
Publication number | Publication date |
---|---|
DE4405447A1 (en) | 1995-08-24 |
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