DE19858579C2 - Implant - Google Patents

Implant

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Publication number
DE19858579C2
DE19858579C2 DE1998158579 DE19858579A DE19858579C2 DE 19858579 C2 DE19858579 C2 DE 19858579C2 DE 1998158579 DE1998158579 DE 1998158579 DE 19858579 A DE19858579 A DE 19858579A DE 19858579 C2 DE19858579 C2 DE 19858579C2
Authority
DE
Germany
Prior art keywords
implant according
implant
metal foam
characterized net
net
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
Application number
DE1998158579
Other languages
German (de)
Other versions
DE19858579A1 (en
Inventor
Ulrich Fink
Michael Schoen
Richard Zeller
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.)
Aesculap AG
Original Assignee
Aesculap AG
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 Aesculap AG filed Critical Aesculap AG
Priority to DE1998158579 priority Critical patent/DE19858579C2/en
Publication of DE19858579A1 publication Critical patent/DE19858579A1/en
Application granted granted Critical
Publication of DE19858579C2 publication Critical patent/DE19858579C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61F2/28—Bones
    • 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
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • 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
    • A61L27/306—Other specific inorganic materials not covered by A61L27/303 - A61L27/32
    • 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
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges
    • 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
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
    • 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
    • A61F2002/30769—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth madreporic
    • 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
    • A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
    • 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
    • A61F2250/0023—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 porosity
    • 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
    • A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
    • 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
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
    • 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
    • A61F2310/00353—Bone cement, e.g. polymethylmethacrylate or PMMA
    • 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

Description

Die Erfindung betrifft ein Implantat, insbesondere ein Knochenersatzimplantat oder ein Zwischenwirbelimplan­ tat, aus einem starren Metallschaum.The invention relates to an implant, in particular a Bone replacement implant or an intervertebral implant did from a rigid metal foam.

Derartige Implantate werden aus körperverträglichen Substanzen hergestellt, beispielsweise aus körperver­ träglichen Metallen oder Metall-Legierungen. Diese be­ kannten Implantate, die aus massiven Metallen bestehen, sind schwer und erzeugen bei vielen Diagnoseverfahren störende Abschattungen und Signale, beispielsweise bei röntgenografischen Verfahren oder bei Magnetresonanz­ verfahren.Such implants are made from body-compatible Substances produced, for example from ver inert metals or metal alloys. These be knew implants made of solid metals, are heavy and produce many diagnostic procedures disturbing shadows and signals, for example at X-ray procedures or with magnetic resonance method.

In der DE 31 06 917 A1 sind Knochenersatzimplantate be­ schrieben, die aus einem starren, schwammartigen Me­ tallformkörper bestehen. Dadurch werden derartige Im­ plantate leichter als massive Implantate, trotzdem be­ halten sie hervorragende Festigkeitseigenschaften.DE 31 06 917 A1 describes bone replacement implants wrote that from a rigid, sponge-like me tall molded body exist. As a result, such Im plantate lighter than massive implants, nevertheless be keep excellent strength properties.

Ausgehend von diesem Stand der Technik liegt der Erfin­ dung die Aufgabe zugrunde, derartige Implantate so wei­ terzubilden, daß sie über die reine Stützfunktion hin­ ausgehende Funktionen übernehmen können. Diese Aufgabe wird bei einem gattungsgemäßen Implantat erfindungsge­ mäß dadurch gelöst, daß die Poren des Metallschaumes mit einer Fremdsubstanz gefüllt sind.The Erfin is based on this state of the art tion based on the task of such implants to train that they go beyond the pure support function can assume outgoing functions. This task is fiction, in a generic implant moderately solved in that the pores of the metal foam are filled with a foreign substance.

Diese Fremdsubstanz kann sehr unterschiedlich sein, es kann sich beispielsweise um einen Knochenzement han­ deln, um Spongiosamaterial oder um einen Kunststoff. Der Knochenzement kann dazu dienen, eine vorläufige Brücke zwischen benachbarten Wirbelkörpern herzustel­ len, das Spongiosamaterial kann das Knochenwachstum im Zwischenwirbelbereich fördern, durch eingelagerten Kunststoff kann eine gewisse Dämpfungswirkung erzeugt werden etc.This foreign substance can be very different, it can be, for example, a bone cement  to spongiosa material or a plastic. The bone cement can serve as a preliminary To create a bridge between adjacent vertebral bodies len, the spongiosa material can the bone growth in the Promote intervertebral area through embedded Plastic can produce a certain damping effect be etc.

Metallschäume oder Metallschwämme dieser Art lassen sich beispielsweise aus einer Metallschmelze dadurch erzielen, daß ein Gas in die Metallschmelze eingeleitet wird, das die Metallschmelze aufschäumt; in diesem Zu­ stand wird die aufgeschäumte Metallschmelze abgekühlt und erstarrt entsprechend der aufgeschäumten Struktur. Bei einem anderen Herstellungsverfahren können derarti­ ge Schäume oder Schwämme beispielsweise dadurch herge­ stellt werden, daß flüssiges Metall in eine schwammar­ tige Struktur eingegossen wird und daß nach dem Erkal­ ten die schwammartige Struktur entfernt wird, bei­ spielsweise durch Auflösen.Leave metal foams or sponges of this type for example from a molten metal achieve that a gas is introduced into the molten metal that foams the molten metal; in this zu the foamed metal melt is cooled and solidifies according to the foamed structure. In another manufacturing process, such ge foams or sponges, for example puts that liquid metal in a sponge structure is poured in and that after the Erkal the sponge-like structure is removed for example by dissolving.

Es ist auch möglich, durch Sintern derartige Strukturen herzustellen, denen gemeinsam ist, daß ein tragendes Gerüst aus Metall entsteht, dessen Dichte beispielswei­ se bei 10% der Dichte des massiven Körpers liegen kann.It is also possible to structure such structures by sintering manufacture, which is common that a load-bearing Scaffolding made of metal, the density of which, for example se can be 10% of the density of the solid body.

Günstig ist es, wenn speziell für die Verwendung als Implantat dieses aus Titan oder einer Titanlegierung besteht, beispielsweise aus TiAl6V4, TiNb6Al7 oder TiAl5Fe2,5. It is convenient if specifically for use as Implant this made of titanium or a titanium alloy consists, for example, of TiAl6V4, TiNb6Al7 or TiAl5Fe2.5.  

Andere mögliche Metalle zur Herstellung des Metall­ schaums können beispielsweise sein Legierungen auf Cobaltbasis nach ISO 5832-/-4/-5/-6/-7/-8/-12 oder Stahllegierungen nach ISO 5832-9.Other possible metals for making the metal Foams can be alloys, for example Cobalt base according to ISO 5832 - / - 4 / -5 / -6 / -7 / -8 / -12 or Steel alloys according to ISO 5832-9.

Die Porengröße des Metallschaums kann zwischen 0,5 und 5 mm liegen, günstig ist insbesondere ein Wert zwischen 2,5 und 3,5 mm.The pore size of the metal foam can be between 0.5 and 5 mm, a value between is particularly favorable 2.5 and 3.5 mm.

Das Implantat kann je nach Herstellungsprozeß offenpo­ rig oder geschlossenporig ausgebildet sein.The implant can open depending on the manufacturing process rig or closed-pore.

Es hat sich herausgestellt, daß durch die geschäumte Struktur trotz des geringen Materialbedarfs eine sehr hohe Steifigkeit des Implantats erreicht werden kann, und dies bedingt insbesondere eine höhere Röntgentrans­ parenz dieses Implantats und geringere Störsignale in Magnetresonanzverfahren, wobei diese Implantate gleich­ zeitig dieselbe Stützfunktion ausüben wie massive Im­ plantate.It has been found that through the foamed Structure in spite of the low material requirement a very high rigidity of the implant can be achieved and this in particular requires a higher x-ray trans parency of this implant and lower interference signals in Magnetic resonance method, these implants being the same perform the same support function as massive Im plantate.

Die nachfolgende Beschreibung einer bevorzugten Ausfüh­ rungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Diese zeigt schema­ tisch ein Metallschaumimplantat, das als Zwischenwir­ belimplantat 1 zwischen zwei benachbarte Wirbelkörper 2, 3 eingesetzt ist. Das Implantat besteht dabei aus einem Block, der aus einem größeren Metallschaumkörper herausgeschnitten ist und beispielsweise quaderförmig ausgebildet ist. In der Zeichnung sind die Poren 4 des Metallschaums kugelig dargestellt, dies entspricht aber in der Praxis nicht der tatsächlichen Form dieser Po­ ren, in vielen Fällen sind die Poren völlig unregelmä­ ßig in ihrer Form, insbesondere können die Poren auch untereinander in Verbindung stehen, sie bilden im Ge­ gensatz zu der Darstellung der Zeichnung keine abge­ schlossenen Hohlräume, sondern ein wirres Kanalsystem zwischen den Stützstrukturen des Metalls.The following description of a preferred embodiment of the invention serves in conjunction with the drawing for a more detailed explanation. This shows schematically a metal foam implant that is used as an intervertebral implant 1 between two adjacent vertebral bodies 2 , 3 . The implant consists of a block that is cut out of a larger metal foam body and is, for example, cuboid. In the drawing, the pores 4 of the metal foam are shown spherically, but in practice this does not correspond to the actual shape of these pores, in many cases the pores are completely irregular in shape, in particular the pores can also be interconnected, they Contrary to the representation of the drawing, they do not form closed cavities, but rather a tangled channel system between the supporting structures of the metal.

Claims (13)

1. Implantat, insbesondere Knochenersatzimplantat oder Zwischenwirbelimplantat, aus einem starren Metallschaum, dadurch gekennzeichnet, daß die Po­ ren (4) des Metallschaums mit einer Fremdsubstanz gefüllt sind.1. implant, in particular bone replacement implant or intervertebral implant, made of a rigid metal foam, characterized in that the Po ren ( 4 ) of the metal foam are filled with a foreign substance. 2. Implantat nach Anspruch 1, dadurch gekennzeich­ net, daß der Metallschaum aus Titan besteht.2. Implant according to claim 1, characterized net that the metal foam is made of titanium. 3. Implantat nach Anspruch 1, dadurch gekennzeich­ net, daß der Metallschaum aus einer Titanlegie­ rung besteht.3. Implant according to claim 1, characterized net that the metal foam from a titanium alloy tion exists. 4. Implantat nach Anspruch 3, dadurch gekennzeich­ net, daß die Titanlegierung TiAl6V4 ist.4. Implant according to claim 3, characterized net that the titanium alloy is TiAl6V4. 5. Implantat nach Anspruch 3, dadurch gekennzeich­ net, daß die Titanlegierung TiNb6Al7 ist.5. Implant according to claim 3, characterized net that the titanium alloy is TiNb6Al7. 6. Implantat nach Anspruch 3, dadurch gekennzeich­ net, daß die Titanlegierung TiAl5Fe2,5 ist. 6. Implant according to claim 3, characterized net that the titanium alloy is TiAl5Fe2.5.   7. Implantat nach Anspruch 1, dadurch gekennzeich­ net, daß der Metallschaum aus einer Legierung auf Cobaltbasis nach ISO 5832-/-4/-5/-6/-7/-8/-12 be­ steht.7. Implant according to claim 1, characterized net that the metal foam from an alloy Cobalt base according to ISO 5832 - / - 4 / -5 / -6 / -7 / -8 / -12 be stands. 8. Implantat nach Anspruch 1, dadurch gekennzeich­ net, daß der Metallschaum aus einer Stahllegie­ rung nach ISO 5832-9 besteht.8. Implant according to claim 1, characterized net that the metal foam from a steel alloy ISO 5832-9. 9. Implantat nach einem der voranstehenden Ansprü­ che, dadurch gekennzeichnet, daß die Porengröße des Metallschaums zwischen 0,5 und 5 mm liegt.9. Implant according to one of the preceding claims che, characterized in that the pore size of the metal foam is between 0.5 and 5 mm. 10. Implantat nach einem der voranstehenden Ansprü­ che, dadurch gekennzeichnet, daß die Fremdsub­ stanz Knochenzement ist.10. Implant according to one of the preceding claims che, characterized in that the foreign sub punch is bone cement. 11. Implantat nach einem der Ansprüche 1 bis 9, da­ durch gekennzeichnet, daß die Fremdsubstanz Spon­ giosamaterial ist.11. Implant according to one of claims 1 to 9, there characterized in that the foreign substance Spon is giosa material. 12. Implantat nach einem der Ansprüche 1 bis 9, da­ durch gekennzeichnet, daß die Fremdsubstanz ein Kunststoff ist. 12. Implant according to one of claims 1 to 9, there characterized in that the foreign substance a Is plastic.   13. Implantat nach Anspruch 12, dadurch gekennzeich­ net, daß der Kunststoff Polyetheretherketon ist.13. Implant according to claim 12, characterized net that the plastic is polyether ether ketone.
DE1998158579 1998-12-18 1998-12-18 Implant Expired - Fee Related DE19858579C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998158579 DE19858579C2 (en) 1998-12-18 1998-12-18 Implant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998158579 DE19858579C2 (en) 1998-12-18 1998-12-18 Implant

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DE19858579A1 DE19858579A1 (en) 2000-06-21
DE19858579C2 true DE19858579C2 (en) 2001-01-04

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002078510A2 (en) * 2001-03-23 2002-10-10 Alcove Surfaces Gmbh Aluminium implant and use thereof
DE102004030347B4 (en) * 2004-06-18 2006-08-03 Aesculap Ag & Co. Kg implant
DE102006047663A1 (en) * 2006-09-29 2008-04-03 Aesculap Ag & Co. Kg Augmentation component for bone implant is constructed on bone implant from connected bridges that form cavities between them of dimensions between 0.5 and 6 mm
DE112007003309B4 (en) * 2006-11-27 2013-02-07 Berthold Nies Bone implant and set for the production of bone implants and its use

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106917A1 (en) * 1981-02-25 1982-11-25 Schuett & Grundei Med Tech IMPLANT AS A REPLACEMENT FOR SPONGIOESE BONES AND METHOD FOR THE PRODUCTION THEREOF
DE3224265A1 (en) * 1982-06-28 1984-01-05 Schütt und Grundei GmbH Medizintechnische Fabrikation, 2400 Lübeck METHOD FOR PRODUCING AN IMPLANT AS BONE REPLACEMENT
DE3738045A1 (en) * 1986-12-05 1988-06-16 Kawahara Haruyuki ENOSSAL IMPLANT
DE4106881C1 (en) * 1991-03-05 1992-08-27 Eska Medical Luebeck Medizintechnik Gmbh & Co, 2400 Luebeck, De Implant on which normal bone growth is possible - having its surface partially covered with metallic, partly open-celled structure
EP0560279A1 (en) * 1992-03-11 1993-09-15 Ultramet Open cell tantalum structures for cancellous bone implants and cell and tissue receptors

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* Cited by examiner, † Cited by third party
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DE3106917A1 (en) * 1981-02-25 1982-11-25 Schuett & Grundei Med Tech IMPLANT AS A REPLACEMENT FOR SPONGIOESE BONES AND METHOD FOR THE PRODUCTION THEREOF
DE3224265A1 (en) * 1982-06-28 1984-01-05 Schütt und Grundei GmbH Medizintechnische Fabrikation, 2400 Lübeck METHOD FOR PRODUCING AN IMPLANT AS BONE REPLACEMENT
DE3738045A1 (en) * 1986-12-05 1988-06-16 Kawahara Haruyuki ENOSSAL IMPLANT
DE4106881C1 (en) * 1991-03-05 1992-08-27 Eska Medical Luebeck Medizintechnik Gmbh & Co, 2400 Luebeck, De Implant on which normal bone growth is possible - having its surface partially covered with metallic, partly open-celled structure
EP0560279A1 (en) * 1992-03-11 1993-09-15 Ultramet Open cell tantalum structures for cancellous bone implants and cell and tissue receptors

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