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DE3342562C2 - Process for the production of a bone implant - Google Patents

Process for the production of a bone implant

Info

Publication number
DE3342562C2
DE3342562C2 DE3342562A DE3342562A DE3342562C2 DE 3342562 C2 DE3342562 C2 DE 3342562C2 DE 3342562 A DE3342562 A DE 3342562A DE 3342562 A DE3342562 A DE 3342562A DE 3342562 C2 DE3342562 C2 DE 3342562C2
Authority
DE
Germany
Prior art keywords
bone implant
support
blank
cold
cold extrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE3342562A
Other languages
German (de)
Other versions
DE3342562A1 (en
Inventor
Des Erfinders Auf Nennung Verzicht
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.)
Berchem & Schaberg 4650 Gelsenkirchen De GmbH
Original Assignee
Berchem & Schaberg 4650 Gelsenkirchen De GmbH
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
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Application filed by Berchem & Schaberg 4650 Gelsenkirchen De GmbH filed Critical Berchem & Schaberg 4650 Gelsenkirchen De GmbH
Priority to DE3342562A priority Critical patent/DE3342562C2/en
Publication of DE3342562A1 publication Critical patent/DE3342562A1/en
Application granted granted Critical
Publication of DE3342562C2 publication Critical patent/DE3342562C2/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28—Materials for coating prostheses
    • A61L27/30—Inorganic materials
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • 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
    • 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
    • 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
    • A61F2002/3625—Necks
    • A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
    • 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
    • A61F2002/3678—Geometrical features
    • A61F2002/3686—Geometrical features bent
    • 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
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni 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
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00419—Other metals
    • A61F2310/0052—Coating made of silver or Ag-based 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
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00419—Other metals
    • A61F2310/00562—Coating made of platinum or Pt-based 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
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00419—Other metals
    • A61F2310/00568—Coating made of gold or Au-based alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (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)
  • Orthopedic Medicine & Surgery (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Inorganic Chemistry (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Description

3030th

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Knochen-Implantates aus einer kaltverformbaren Titanlegierung mit einer aus einem Edelmetall oder einer Edelmetallegierung bestehenden Auflage, wobei ein Rohling vorgeformt und durch Kaltverformung zum Knochen-Implantat geformt wird und die Auflage unter dem Einfluß elektrischer Kräfte aufgebracht wird.The invention relates to a method for producing a bone implant from a cold-deformable one Titanium alloy with a layer consisting of a noble metal or a noble metal alloy, wherein a blank is preformed and formed into a bone implant by cold working, and the Edition is applied under the influence of electrical forces.

Bei dem bekannten, gattungsgemäßen Verfahren (DE-OS 28 24 063), bei dem unterstellt werden kann, daß die Formgebung des Knochen-Implantates durch Kaltverformung erfolgt (»Medizinalmarkt« 9/1973, S. 296 bis 298), wird die Auflage auf das ggf. zuvor spanabhebend bearbeitete Knochen-Implantat aufgebracht, und zwar elektrolytisch im Rahmen eines Salzschmelzverfahrens. Dabei muß in Kauf genommen werden, daß die Auflage an keiner Stelle unmittelbar mit dem Metalltitan verbunden ist, sondern lediglich auf der Titanoxidschicht haftet, mit der sich Titan und Titanlegierungen im Kontakt mit Luftsauerstoff spontan überziehen. Die Haftung der Auflage ist daher nicht befriedigend. Das gilt insbesondere dann, wenn man die Auflage im Wege des Flammspritzens (DE-OS 23 13 678) aufbringt. Um auf insbesondere Zahnimplantate aus Titan oder aus einer Titanlegierung eine Interferenzoberflächenschicht aus Aluminiumoxid, Siliciumnitrid oder dergleichen aufzubringen, ist es bekannt (DE-OS 26 32 932), mit einem Ionenstrahl zu arbeiten, die Auflage also im Wege der Ionenplattierung aufzubringen. Auch hier wird die Auflage auf das Implantat und damit auf dessen Titanoxidschicht aufgebracht.In the known, generic method (DE-OS 28 24 063), in which it can be assumed that the shaping of the bone implant is done by cold deformation (»Medizinalmarkt« 9/1973, P. 296 to 298), the overlay is applied to the bone implant that may have been previously machined, namely electrolytically in the context of a salt melting process. It must be accepted that the support is not directly connected to the metal titanium at any point, but only on the titanium oxide layer adheres, with which titanium and titanium alloys spontaneously coat each other in contact with atmospheric oxygen. The liability of the edition is therefore not satisfactory. This is especially true if you have the edition in Ways of flame spraying (DE-OS 23 13 678) applies. To use in particular dental implants made of titanium or made of a titanium alloy, an interference surface layer made of aluminum oxide, silicon nitride or the like to apply, it is known (DE-OS 26 32 932) to work with an ion beam, so the edition in Ways of ion plating to apply. Here, too, the rest on the implant and thus on its Titanium oxide layer applied.

Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Verfahren so zu führen, daß eine wesentlich verbesserte Haftung der Auflage auf dem Knochen-Implantat erreicht wird.The invention is based on the object of carrying out the generic method in such a way that one is essential improved adhesion of the support on the bone implant is achieved.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß die Auflage zunächst auf den Rohling im Wege der Ionenplattierung aufgebracht wird und daß danach die Formgebung zum Knochen-Implantat durch Kaltfließpressen durchgeführt wird. Die Auflage wird auf den Rohling zweckmäßigerweise mit einer mittleren Schichtdicke von 1,0 bis 10 μηι, vorzugsweise von etwa 5 μ τι, aufgebracht Eine bevorzugte Ausführungsform der Erfindung, die zu einem besonders intensiven Verbund zwischen Titanlegierung und der Auflage führt, ist dadurch gekennzeichnet, daß die Auflage durch das Kaltfließpressen auf eine mittlere Schichtdicke von etwa 0,5 μπι gebracht wird. Es empfiehlt sich, beim Kaltfließpressen mit einer zusätzlichen Schmierschicht auf Basis von M0S2 zu arbeiten.To solve this problem, the invention teaches that the support first on the blank by means of ion plating is applied and that then the shaping to the bone implant by cold extrusion is carried out. The support is expediently on the blank with a medium Layer thickness of 1.0 to 10 μm, preferably of about 5 μ τι, applied A preferred embodiment of the invention, which leads to a particularly intensive bond between the titanium alloy and the support characterized in that the support by cold extrusion to a mean layer thickness of about 0.5 μπι is brought. It is recommended when cold extrusion to work with an additional smear layer based on M0S2.

Überraschenderweise haftet eine im Wege der Ionenplattierung aufgebrachte Edelmetallschicht zunächst auf den Rohling so, daß diese Edelmetallschicht als Gleitschicht beim Kaltfließpressen funktioniert und das Kaltfließpressen des Rohlings aus einer Titanlegierung überhaupt erst ermöglicht, ohne daß Werkstück und Werkzeug verschweißen und die Oberfläche des Bauteils zerstört wird. Es versteht sich, daß der Kaltfließvorgang so geführt wird, daß das verdrängte, steigende Material nicht abreißt. Das gilt sowohl für die Titanlegierung a!s auch für die Edelmetallschicht. Eine derartige Führung des Kaltfließpreßvorganges ist durch entsprechende Werkzeuggestaltung und Einstellung der Verformungsgeschwindigkeit ohne weiteres möglich. Überraschenderweise wird der Verbund zwischen Titanlegierung und der Edelmetallschicht beim Kaltfließpressen eher verbessert als beeinträchtigt.Surprisingly, a noble metal layer applied by means of ion plating initially adheres on the blank in such a way that this noble metal layer functions as a sliding layer during cold extrusion and that Cold extrusion of the blank made of a titanium alloy made possible in the first place without the workpiece and Weld the tool and the surface of the component is destroyed. It is understood that the cold flow process is guided in such a way that the displaced, rising material does not tear off. This applies to both the titanium alloy a! s also for the precious metal layer. Such a management of the cold extrusion process is through appropriate Tool design and adjustment of the deformation speed are easily possible. Surprisingly, the bond between the titanium alloy and the noble metal layer is formed during cold extrusion improved rather than impaired.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigtIn the following the invention is illustrated by means of a drawing which shows only one exemplary embodiment explained in more detail. It shows

F i g. 1 die Seitenansicht eines nach dem erfindungsgemäßen Verfahren hergestellten Knochen-Implantates, F i g. 1 the side view of a bone implant produced by the method according to the invention,

F i g. 2 in gegenüber der F i g. 1 vergrößertem Maßstab einen Schnitt in Richtung A-A durch den Gegenstand nach F i g. 1 undF i g. 2 in opposite to FIG. 1 on an enlarged scale, a section in the direction AA through the object according to FIG. 1 and

F i g. 3 den nochmals vergrößerten Ausschnitt B aus dem Gegenstand nach F i g. 2.F i g. 3 shows the further enlarged section B from the object according to FIG. 2.

Der in den Figuren dargestellte Rohling 1 besteht aus einer verformbaren Titanlegierung. Es wurde auch im Wege des Kaltfließpressens hergestellt. Er besitzt eine Auflage 2. Diese funktioniert als Gleitschicht beim Kaltfließpressen. Die Auflage 2 wurde im Wege der Ionenplattierung aufgebracht und besteht aus duktilem Edelmetall oder einer duktilen Legierung. Insbesondere aus der F i g. 3 entnimmt man, daß das Implantat t gewebeseitig eine durch Riefen und Rillen 3 vergrößerte Lakunenoberfläche aufweist.The blank 1 shown in the figures consists of a deformable titanium alloy. It was also in the Ways of cold extrusion produced. It has a support 2. This works as a sliding layer in cold extrusion. The support 2 was applied by means of ion plating and consists of ductile noble metal or a ductile alloy. In particular from FIG. 3 it can be seen that the implant t is on the tissue side has a lacunae surface enlarged by grooves and grooves 3.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

Patentansprüche:Patent claims: 1. Verfahren zur Herstellung eines Knochen-Implantates aus einer kaltverformbaren Titanlegierung mit einer aus einem Edelmetall oder einer Edelmetallegierung bestehenden Auflage, wobei ein Rohling vorgeformt und durch Kaltverformung zum Knochen-Implantat geformt wird und die Auflage unter dem Einfluß elektrischer Kräfte aufgebracht wird, dadurch gekennzeichnet, daß die Auflage zunächst auf den Rohling im Wege der Ionenplattierung aufgebracht wird und daß danach die Formgebung zum Knochen-Implantat durch Kaltfließpressen durchgeführt wird.1. Process for the production of a bone implant made of a cold-deformable titanium alloy with one made of a noble metal or a noble metal alloy existing support, whereby a blank is preformed and formed into a bone implant by cold forming, and the support is applied under the influence of electrical forces, characterized in that the Edition is first applied to the blank by way of ion plating and that then the Shaping the bone implant is carried out by cold extrusion. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß auf den Rohling eine Auflage mit einer mittleren Schichtdicke von 1,0 bis 10,0 μίτι, vorzugsweise von etwa 5 μίτι, aufgebracht wird.2. The method according to claim 1, characterized in that a support with a on the blank average layer thickness of 1.0 to 10.0 μίτι, preferably of about 5 μίτι is applied. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Auflage durch das Kaltfließpressen auf eine mittlere Schichtdicke von etwa 0,5 μιτι gebracht wird.3. The method according to claim 2, characterized in that the support by cold extrusion brought to an average layer thickness of about 0.5 μm will. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß beim Kaltfließpressen mit einer zusätzlichen Schmierschicht auf Basis von M0S2 gearbeitet wird.4. The method according to any one of claims 1 to 3, characterized in that the cold extrusion an additional smear layer based on M0S2 is used.
DE3342562A 1983-11-25 1983-11-25 Process for the production of a bone implant Expired DE3342562C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3342562A DE3342562C2 (en) 1983-11-25 1983-11-25 Process for the production of a bone implant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3342562A DE3342562C2 (en) 1983-11-25 1983-11-25 Process for the production of a bone implant

Publications (2)

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DE3342562A1 DE3342562A1 (en) 1985-06-05
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Cited By (3)

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DE102011000474A1 (en) * 2011-02-03 2012-08-09 Gottfried Wilhelm Leibniz Universität Hannover Endoprosthesis used for correction of hip joint, has joint surface forming region which is arranged at base portion made from titanium or titanium alloy
DE102012014160A1 (en) * 2012-07-18 2014-05-15 Gottfried Wilhelm Leibniz Universität Hannover Method for manufacturing endoprosthesis, particularly hip-, knee- or shoulder endoprosthesis, involves providing base body made from titanium or titanium alloy and joint surface forming area which is arranged at base body
CN110899587A (en) * 2019-12-03 2020-03-24 无锡航亚科技股份有限公司 Forging forming method of precise tibial plateau artificial joint implant

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DE3723650A1 (en) * 1987-07-17 1989-01-26 Krupp Gmbh METHOD FOR COATING TITANIUM AND TITANIUM ALLOYS
DE3844155C2 (en) * 1988-12-23 1994-01-27 Johnson & Johnson Professional Endoprosthesis and process for its manufacture
DE9011363U1 (en) * 1989-09-28 1990-11-15 Howmedica Inc. (n.d.Ges.d.Staates Delaware), New York, N.Y. Prosthetic part
US5980974A (en) * 1996-01-19 1999-11-09 Implant Sciences Corporation Coated orthopaedic implant components
US5674293A (en) * 1996-01-19 1997-10-07 Implant Sciences Corp. Coated orthopaedic implant components
US5855950A (en) * 1996-12-30 1999-01-05 Implant Sciences Corporation Method for growing an alumina surface on orthopaedic implant components
CN110369654B (en) * 2019-08-08 2020-09-25 无锡航亚科技股份有限公司 Forging method of titanium alloy tibial plateau artificial joint implant
CN111745103A (en) * 2020-06-30 2020-10-09 无锡航亚科技股份有限公司 Forging forming method for medical titanium alloy femoral stem forging
CN112387913A (en) * 2020-10-23 2021-02-23 无锡航亚科技股份有限公司 Upsetting die for forging blank of hip joint handle forging and blank manufacturing method thereof

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DE2313678A1 (en) * 1973-03-20 1974-10-03 Becker Heinrich Composite prosthesis esp. for hip joints - comprising metal core with porous coating
DE2632932A1 (en) * 1976-07-22 1978-01-26 Dornier System Gmbh Prosthesis, esp. a tooth implantation - using metal substrate coated with biocompatible material providing an interference colour
GB1602375A (en) * 1977-06-02 1981-11-11 Johnson Matthey Co Ltd Coating of metals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011000474A1 (en) * 2011-02-03 2012-08-09 Gottfried Wilhelm Leibniz Universität Hannover Endoprosthesis used for correction of hip joint, has joint surface forming region which is arranged at base portion made from titanium or titanium alloy
DE102012014160A1 (en) * 2012-07-18 2014-05-15 Gottfried Wilhelm Leibniz Universität Hannover Method for manufacturing endoprosthesis, particularly hip-, knee- or shoulder endoprosthesis, involves providing base body made from titanium or titanium alloy and joint surface forming area which is arranged at base body
CN110899587A (en) * 2019-12-03 2020-03-24 无锡航亚科技股份有限公司 Forging forming method of precise tibial plateau artificial joint implant
CN110899587B (en) * 2019-12-03 2020-11-20 无锡航亚科技股份有限公司 Forging forming method of precise tibial plateau artificial joint implant

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