DE923383C - Zweistoff-Endoprothese - Google Patents

Zweistoff-Endoprothese

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Publication number
DE923383C
DE923383C DET4673A DET0004673A DE923383C DE 923383 C DE923383 C DE 923383C DE T4673 A DET4673 A DE T4673A DE T0004673 A DET0004673 A DE T0004673A DE 923383 C DE923383 C DE 923383C
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DE
Germany
Prior art keywords
plastic
sliding surfaces
endoprosthesis
prosthesis
dual
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Expired
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DET4673A
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English (en)
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Frans Donatus Dr Me Timmermans
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Individual
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Individual
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Priority to DET4673A priority Critical patent/DE923383C/de
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Publication of DE923383C publication Critical patent/DE923383C/de
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3601Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
    • A61F2/3603Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices implanted without ablation of the whole natural femoral head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28Materials for coating prostheses
    • A61L27/30Inorganic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3859Femoral components
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/389Tibial components
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30433Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30451Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904Special 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/30934Special articulating surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3601Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
    • A61F2/3603Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices implanted without ablation of the whole natural femoral head
    • A61F2002/3605Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices implanted without ablation of the whole natural femoral head made of two or more concentric caps fitted onto one another
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0041Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0058Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00035Other metals or alloys
    • A61F2310/00059Chromium or Cr-based alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00928Coating or prosthesis-covering structure made of glass or of glass-containing compounds, e.g. of bioglass
    • A61F2310/0094Coating made of porcelain
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2430/00Materials or treatment for tissue regeneration
    • A61L2430/24Materials or treatment for tissue regeneration for joint reconstruction

Landscapes

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

Description

  • Die aus Kunststoffen, wie Polymethacrylsäuremethylester und insbesondere aus Polyurethan, gefertigten Endoprothesen zeigen eine gute Gewebefreundlichkeit. Die Gelenkprothesen werden von dem tragenden Knochenmassiv auch auf die Dauer ohne Abstoßungszeichen fest gehaltert. Aber es hat sich gezeigt, daß bei entsprechend stark belasteten Gelenken, z. B. dem Hüftgelenk, der künstliche Gelenkkopf so erheblichen Abreibungserscheinungen unterliegt, daß nach wenigen Jahren wegen Verschleißes der künstliche Gelenkkopf entfernt werden und durch einen neuen ersetzt werden muß.
  • Dadurch wird der große Vorteil der Kunststoffendoprothesen gegenüber den Metallkappen, daß sie gegenüber dem Knochenmassiv keine Fremdkörpererscheinungen bewirken, wieder durch einen schweren Nachteil aufgehoben.
  • Erfindungsgemäß wird dieser Nachteil dadurch überwunden, daß man die Kunststoffprothese, gleichgültig, ob aus Kohlenwasserstoffabkömmlingen, Diisocyanaten oder Polyamiden aufgebaut hinsichtlich der dem Verschleiß durch Abreib.ung unterworfenen Gelenkfläche armiert mit einem kräftigen Überzug aus alloplastisch geeignetem Metall, z. B. Chrom-Molybdän-Wolfram, oder mineralischen Stoffen, z. B. reinem Quarz oder Porzellan, also einem harten, abriebfesten Material mit halballoplastischen Eigenschaften. Unter solchen Eigenschaften ist zu verstehen, daß zwar keine Verankerung im Knochengewebe eintritt, sondern eher eine allmähliche Abstoßung, daß aber im Gelenkspalt hinreichende Gewebefreundlichkeit vorliegt, so daß keine Reizerscheinungen eintreten. Eine solche aus zwei verschiedenen .Stoffen aufgebaute Endoprothese des Gelenkes, z. B. des Hüftgelenkes oder des Kniegelenkes, vereinigt in sich die beiden für diesen Zweck erwünschten Eigenschaften der alloplastischen Verträglichkeit mit dem tragenden Knochengewebe und dadurch solide Verankerungsmöglichkeit darin einerseits mit der mechanischen Abriebfestigkeit des halballoplastischen, aus metallischen oder mineralischen Stoffen aufgebauten Oberflächenteiles des Gelenkkopfes (oder Pfanne usw.) andererseits.
  • In der Zeichnung ist dieser Erfindungsgegenstand in den Fig. I bis 5 dargestellt.
  • Fig. I und 2 zeigen eine Femurkopfendoprothese in der Seitenansicht und im Schnitt. a ist die Oberflächenarmierung mittels einer Kappe aus einem korrosionsfreiem Metall, z. B. einer Chrom-Wolfram-Molybdän-Legierung. Im Zenith der Konkavität ist der nagelförmige Stützstab b bei c angeschweißt oder genietet, dessen freies Ende d schlank spitz ausläuft. Die Kappe überschreitet zweckmäßig eine Halbkugel um etwa 5 bis 15 und ist dann bei e nach innen eingekrümmt, wodurch sie sich in die Kunststoffmasse des Prothesenkopfes f eingräbt und so mit dieser mechanisch verbunden. ist. g ist der Prothesenschaft mit der Verankerungsspitze k. Der Kappenrand des Kunststoffkopfes f kann gegen Drehung sichernde Zapfen i tragen.
  • Fig. 3 zeigt eine Tibiakopfprothese (Kniegelenk).
  • Die Metallplatte a ist hier mittels des eingekrümmten Randes e mit der Kunststoffgrundlage f des Kopfes der Prothese mechanisch verbunden. g ist der (schräg gestellte) Prothesenschaft mit der Verankerungsspitze k.
  • Fig. 4 zeigt eine Femurkondylenprothese. Hier wird die Fixierung der Metallarmierung an der eigentlichen Kunststoffprothese dadurch bewerkstelligt, daß die Metallplatte a mehr oder minder zahlreiche Löcher von etwa Trichterform besitzt, die. sich bei der Kunststoffanbringung füllen und verankernd wirken. Jedes Loch h enthält nach der Kunststoffanbringung einen kegelförmigen -Zapfen, der diese verankernde Wirkung hat und die Platte a mit der Kunststoffgrundlage f, die gegen den Knochen z. B. wabig aufgelockert ist, fest verbindet. k ist der hier schräg nach oben gestellte Verankerungszapfen.
  • Fig. 5 zeigt eine schaftfreie Femurkopfendoprothese.ES ist hier gezeigt, daß man auch hier mittels eines zentral gestellten trichterförmigen Loches h eine mechanische Verbindung zwischen -Metallarmierung und- Kunststoffgrund erreichen kann.

Claims (2)

  1. PATENTANSPRÜCHE: I. Zweistoff-Endoprothese, gekennzeichnet durch die ganze oder teilweise Armierung der abriebbeanspruchten Gelenkoberfläche der Kunststoffprothese mittels massiver Gleitflächen, z. B. in Kappenform, die aus korrosionsfreiem Metall oder auch aus mineralischen Stoffen, wie Quarz oder Porzellan, aufgebaut sind.
  2. 2. Zweistoff-Endoprothese nach Anspruch I, dadurch gekennzeichnet, daß die mechanische Verbindung dieser Gleitflächen mit der Kunststoffgrundlage bewirkt wird mittels Randwulstes, umgekrümmten Randes oder aber Kunststoffverzapfung durch konische Löcher in den Gleitflächen, die in Einzahl oder Vielzahl angeordnet sein können, oder auch mittels aufgerauhter Rückflächen der Gleitflächen.
DET4673A 1951-08-08 1951-08-08 Zweistoff-Endoprothese Expired DE923383C (de)

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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024203B (de) * 1954-01-29 1958-02-13 Chevalier & Fils S A R L E Gelenkendprothese
DE1093046B (de) * 1953-07-27 1960-11-17 Phil Frans Donatus Timmermans Schenkelhals-Schraube oder -Stuetze
DE1164019B (de) * 1960-03-29 1964-02-27 Chiron Werke G M B H Hueftgelenkkopfprothese und Bohrvorrichtung fuer ihre Befestigung
US3314420A (en) * 1961-10-23 1967-04-18 Haeger Potteries Inc Prosthetic parts and methods of making the same
US3715763A (en) * 1971-04-21 1973-02-13 W Link Artificial limb for the knee joint
US3728742A (en) * 1971-06-18 1973-04-24 Howmedica Knee or elbow prosthesis
DE2401482A1 (de) * 1973-01-12 1974-07-25 Nat Res Dev Oberschenkelteil fuer hueftgelenk-endoprothesen
DE2834298A1 (de) * 1978-08-04 1980-02-14 Orthoplant Gmbh Endoprothese fuer ein hueftgelenk, insbesondere das hueftgelenk eines menschen
DE2933141A1 (de) * 1978-10-06 1980-04-10 Sulzer Ag Verankerungszapfen fuer knochenimplantate
DE2914737A1 (de) * 1979-04-11 1980-10-16 Feldmuehle Ag Hueftkopfkappe fuer endoprothese
DE3149881A1 (de) * 1981-12-16 1983-06-23 Hans Dr.med. Dr.med.dent. 8000 München Scheicher Verbindungselement fuer enossale implantate
US4525145A (en) * 1983-05-20 1985-06-25 Fraunhofer-Gesellschaft Zur Forderung Der Angwandten Forschung E.V. Connecting device for joining a superstructure element with an implant member
EP0191152A1 (de) * 1985-01-08 1986-08-20 GebràœDer Sulzer Aktiengesellschaft Metallisches Knochenimplantat
EP0485326A1 (de) * 1990-11-09 1992-05-13 SULZER Medizinaltechnik AG Zementfrei einbaubare Kappe für einen Femurkopf
DE4441033A1 (de) * 1994-11-17 1996-05-23 Gerd Hoermansdoerfer Elastischer Kugelkopf für Hüftgelenkimplantate
DE19904126A1 (de) * 1999-02-03 2000-08-10 Ceramtec Ag Hüftendoprothese, in der mindestens die Artikulationsfläche des Femurkopfes ersetzt ist
EP1138284A1 (de) * 2000-03-27 2001-10-04 Benoist Girard Sas Femorale Hüftgelenkprothese
DE10021387A1 (de) * 2000-05-03 2001-11-22 Giorgio E Curradini Kappe zum Aufsetzen auf den Hüftkopf eines Femurs
EP1260200A1 (de) * 2001-05-18 2002-11-27 Copf, Peter, Dr. med Zementfreie Hüftgelenksendoprothese als Oberflächenersatz des proximalen Femurs
US6524343B2 (en) 2000-03-27 2003-02-25 Benoist Girard Sas Femoral hip prosthesis
EP1356795A1 (de) * 2002-04-23 2003-10-29 ESKA Implants GmbH & Co. Set zur Erstellung eines Armierungsimplantates
WO2003099156A2 (en) * 2002-05-23 2003-12-04 Discure, Ltd. Joint and dental implants
EP1407728A1 (de) * 2002-10-07 2004-04-14 Centerpulse Orthopedics Ltd. Femurkopfprothese
GB2388321B (en) * 2002-03-26 2006-04-12 Derek James Wallace Mcminn Hip joint prosthesis
EP1836997A1 (de) * 2006-03-20 2007-09-26 Howmedica Osteonics Corp. Verbundgelenkimplantat
EP1900344A3 (de) * 2006-09-15 2008-04-09 Corin Limited Oberflächenumformung-Femurkopfteil
DE102008053566A1 (de) 2007-11-27 2009-06-04 Bernhard Hildebrandt System aus Endprothesen und Geräten zur minimal invasiven und zementfreien Implantation von Endoprothesen der Schulter und der Hüfte und der Offset-Verbesserung des Schenkelhalses
JP2009160300A (ja) * 2008-01-09 2009-07-23 Corin Ltd 表面再建用の大腿骨頭コンポーネント
WO2010129990A1 (en) * 2009-05-12 2010-11-18 Atlax Pty Ltd Atf Atlax Trust Hip prosthesis
EP3763334A4 (de) * 2018-03-09 2021-10-13 Pérez Núñez, Rafael Eduardo Hüftgelenkprothese mit kopf aus hochvernetztem polyethylen

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093046B (de) * 1953-07-27 1960-11-17 Phil Frans Donatus Timmermans Schenkelhals-Schraube oder -Stuetze
DE1024203B (de) * 1954-01-29 1958-02-13 Chevalier & Fils S A R L E Gelenkendprothese
DE1164019B (de) * 1960-03-29 1964-02-27 Chiron Werke G M B H Hueftgelenkkopfprothese und Bohrvorrichtung fuer ihre Befestigung
US3314420A (en) * 1961-10-23 1967-04-18 Haeger Potteries Inc Prosthetic parts and methods of making the same
US3715763A (en) * 1971-04-21 1973-02-13 W Link Artificial limb for the knee joint
US3728742A (en) * 1971-06-18 1973-04-24 Howmedica Knee or elbow prosthesis
DE2401482A1 (de) * 1973-01-12 1974-07-25 Nat Res Dev Oberschenkelteil fuer hueftgelenk-endoprothesen
DE2834298A1 (de) * 1978-08-04 1980-02-14 Orthoplant Gmbh Endoprothese fuer ein hueftgelenk, insbesondere das hueftgelenk eines menschen
DE2933141A1 (de) * 1978-10-06 1980-04-10 Sulzer Ag Verankerungszapfen fuer knochenimplantate
DE2914737A1 (de) * 1979-04-11 1980-10-16 Feldmuehle Ag Hueftkopfkappe fuer endoprothese
US4312079A (en) * 1979-04-11 1982-01-26 Feldmuhle Aktiengesellschaft Femur head cap for endoprosthesis
DE3149881A1 (de) * 1981-12-16 1983-06-23 Hans Dr.med. Dr.med.dent. 8000 München Scheicher Verbindungselement fuer enossale implantate
US4525145A (en) * 1983-05-20 1985-06-25 Fraunhofer-Gesellschaft Zur Forderung Der Angwandten Forschung E.V. Connecting device for joining a superstructure element with an implant member
EP0191152A1 (de) * 1985-01-08 1986-08-20 GebràœDer Sulzer Aktiengesellschaft Metallisches Knochenimplantat
EP0485326A1 (de) * 1990-11-09 1992-05-13 SULZER Medizinaltechnik AG Zementfrei einbaubare Kappe für einen Femurkopf
US5133769A (en) * 1990-11-09 1992-07-28 Sulzer Brothers Cap for a femur head
DE4441033A1 (de) * 1994-11-17 1996-05-23 Gerd Hoermansdoerfer Elastischer Kugelkopf für Hüftgelenkimplantate
DE19904126A1 (de) * 1999-02-03 2000-08-10 Ceramtec Ag Hüftendoprothese, in der mindestens die Artikulationsfläche des Femurkopfes ersetzt ist
EP1138284A1 (de) * 2000-03-27 2001-10-04 Benoist Girard Sas Femorale Hüftgelenkprothese
US6524343B2 (en) 2000-03-27 2003-02-25 Benoist Girard Sas Femoral hip prosthesis
DE10021387C2 (de) * 2000-05-03 2002-09-12 Giorgio E Curradini Kappe zum Aufsetzen auf den Hüftkopf eines Femurs
DE10021387A1 (de) * 2000-05-03 2001-11-22 Giorgio E Curradini Kappe zum Aufsetzen auf den Hüftkopf eines Femurs
EP1260200A1 (de) * 2001-05-18 2002-11-27 Copf, Peter, Dr. med Zementfreie Hüftgelenksendoprothese als Oberflächenersatz des proximalen Femurs
US7879106B2 (en) 2002-03-26 2011-02-01 Smith & Nephew, Inc. Hip joint prosthesis
US8808391B2 (en) 2002-03-26 2014-08-19 T.J. Smith & Nephew, Limited Hip joint prosthesis
US8177852B2 (en) 2002-03-26 2012-05-15 Smith & Nephew, Inc. Hip joint prosthesis
GB2388321B (en) * 2002-03-26 2006-04-12 Derek James Wallace Mcminn Hip joint prosthesis
EP1356795A1 (de) * 2002-04-23 2003-10-29 ESKA Implants GmbH & Co. Set zur Erstellung eines Armierungsimplantates
WO2003099156A2 (en) * 2002-05-23 2003-12-04 Discure, Ltd. Joint and dental implants
US7758653B2 (en) 2002-05-23 2010-07-20 Active Implants Corporation Implants
WO2003099156A3 (en) * 2002-05-23 2004-03-25 Discure Ltd Joint and dental implants
EP1407728A1 (de) * 2002-10-07 2004-04-14 Centerpulse Orthopedics Ltd. Femurkopfprothese
EP1836997A1 (de) * 2006-03-20 2007-09-26 Howmedica Osteonics Corp. Verbundgelenkimplantat
US8333805B2 (en) 2006-03-20 2012-12-18 Howmedica Osteonics Corp. Composite joint implant
EP1900344A3 (de) * 2006-09-15 2008-04-09 Corin Limited Oberflächenumformung-Femurkopfteil
DE102008053566A1 (de) 2007-11-27 2009-06-04 Bernhard Hildebrandt System aus Endprothesen und Geräten zur minimal invasiven und zementfreien Implantation von Endoprothesen der Schulter und der Hüfte und der Offset-Verbesserung des Schenkelhalses
JP2009160300A (ja) * 2008-01-09 2009-07-23 Corin Ltd 表面再建用の大腿骨頭コンポーネント
WO2010129990A1 (en) * 2009-05-12 2010-11-18 Atlax Pty Ltd Atf Atlax Trust Hip prosthesis
EP3763334A4 (de) * 2018-03-09 2021-10-13 Pérez Núñez, Rafael Eduardo Hüftgelenkprothese mit kopf aus hochvernetztem polyethylen

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