WO2002078759A1 - Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen - Google Patents
Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen Download PDFInfo
- Publication number
- WO2002078759A1 WO2002078759A1 PCT/CH2001/000210 CH0100210W WO02078759A1 WO 2002078759 A1 WO2002078759 A1 WO 2002078759A1 CH 0100210 W CH0100210 W CH 0100210W WO 02078759 A1 WO02078759 A1 WO 02078759A1
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- WIPO (PCT)
- Prior art keywords
- surface layer
- calcium
- substrate
- acid
- phosphate
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
-
- 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
- A61L27/32—Phosphorus-containing materials, e.g. apatite
-
- 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
- A61F2/3094—Designing or manufacturing processes
-
- 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
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30084—Materials having a crystalline structure
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- 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
- A61F2002/30906—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth shot- sand- or grit-blasted
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- 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
- A61F2002/30925—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth etched
-
- 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
- A61F2310/00035—Other metals or alloys
- A61F2310/00041—Magnesium or Mg-based alloys
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- 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
- A61F2310/00035—Other metals or alloys
- A61F2310/00047—Aluminium or Al-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
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00035—Other metals or alloys
- A61F2310/00053—Vanadium or V-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
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00035—Other metals or alloys
- A61F2310/00089—Zirconium or Zr-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
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00035—Other metals or alloys
- A61F2310/00095—Niobium or Nb-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
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00035—Other metals or alloys
- A61F2310/00131—Tantalum or Ta-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
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00598—Coating or prosthesis-covering structure made of compounds based on metal oxides or hydroxides
- A61F2310/00616—Coating made of titanium oxide or hydroxides
-
- 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
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00796—Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
-
- 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
- A61F2310/0097—Coating or prosthesis-covering structure made of pharmaceutical products, e.g. antibiotics
-
- 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
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
Definitions
- Bioactive surface layer especially for medical implants and prostheses.
- the invention relates to a bioactive surface layer according to the preamble of claim 1 and to a method for producing a calcium phosphate-containing, bioactive, porous surface layer according to the preamble of claim 16.
- ISHIZAWA a dental implant made of titanium is known which is provided with an anodic oxidation of the substrate with a surface layer which contains calcium and phosphate ions, in the form of hydroxylapatite crystals.
- a disadvantage of this coating is the fact that the hydroxyapatite crystals are essentially insoluble, so that the calcium and phosphate ions cannot be built into the bone.
- Another disadvantage of this known, crystalline coating is its brittleness, which entails the risk of the coating flaking off.
- the manufacturing process disclosed is a two-stage process, which is to be regarded as disadvantageous.
- the invention seeks to remedy this.
- the invention has for its object to provide a bioactive, porous, calcium phosphate (CaP) surface layer which has calcium phosphates of high solubility, so that it can act as a donor of calcium phosphate for bone formation.
- CaP calcium phosphate
- the invention solves this problem with a surface layer which has the features of claim 1.
- the advantages achieved by the invention are essentially to be seen in the fact that, thanks to the surface layer according to the invention, with calcium phosphate phases which are soluble in the pore structure, the bone can grow into the porous support structure more quickly. It is not just a superficial impregnation with calcium and phosphate ions, but also by a microstructuring that can be achieved by the method according to the invention and is superimposed on the existing surface structure with an incorporation of amorphous or nanocrystalline, and thus soluble, calcium phosphate phases into those formed by anodic oxidation with spark discharge Metal oxide layer.
- the method according to the invention has the advantage that it is a one-step process that runs quickly and is also suitable for complex geometric shapes.
- the surface layer additionally contains hydroxylapatite.
- the Ca / P ratio over the entire surface layer is in the range of 1.0 to 1.8, i.e. roughly similar to that for TCP, HA and Ca-deficient HA. It has been shown that a Ca / P ratio which is in the vicinity of the natural, inorganic bone material hydroxylapatite (1, 67) represents an optimal Ca / P ratio with regard to the layer components going into solution.
- the amorphous or nanocrystalline calcium phosphates and / or the hydroxyapatite make up 1 to 40% by volume of the total surface layer. Since the calcium phosphate phase is integrated into the layer that has grown out of the substrate material, there is better adhesion.
- the surface layer contains from 25 to 95 atomic percent metal oxide, preferably from 30 to 80 atomic percent. It has been shown that the mechanical and chemical resistance of the layer matrix is optimal with these metal oxide fractions.
- the metal oxide is in the form of crystals, preferably with a size of the crystals of 10 to 150 nanometers, which is favorable for the solubility of the Ca and P ions.
- the metal oxide is titanium dioxide, preferably in the form of anatase or rutile, which have a specific crystal structure.
- the Ca 2+ ions and P ⁇ 4 3 " ions embedded in the surface layer are distributed over the entire metal oxide layer.
- such a homogeneous surface composition has the advantage that it enables the release of sufficiently large amounts of calcium and phosphate per unit area for bone formation.
- the thickness of the surface layer is 0.5 to 10.0 ⁇ m.
- Such a relatively thin layer is advantageous with regard to adhesion, especially in the case of shear stress. It also guarantees optimal protection against corrosion and, in particular, against mechanical abrasion, without, however, creating the risk of brittle behavior and / or tension under mechanical stress (in particular under shear stress) or thermal stress, as is often the case with thick layers the case is.
- the pores of the porous surface layer contain pharmacologically active substances, preferably peptides, growth factors, bone morphogenetic proteins, antibiotics or anti-inflammatories.
- pharmacologically active substances preferably peptides, growth factors, bone morphogenetic proteins, antibiotics or anti-inflammatories.
- active ingredients enable biological or biochemical support for the healing process of the bone tissue.
- the release kinetics time release of the active ingredient or the active ingredients per unit area
- the surface layer according to the invention is preferably applied to a substrate which contains one or more of the elements Ti, Zr, Ta, Nb, Al, V, Mg or their alloys.
- the elements Ti, Zr, Ta, Nb, AI, V, Mg are also referred to as valve metals (see MM Lohrengel, "Thin anodic oxide layers on aluminum and other valve metals", Materials Science and Engineering, R11, No. 6, December 15, 1993) Coating such substrates with the surface layer according to the invention has proven to be particularly advantageous.
- the surface layer according to the invention applied to these substrates preferably consists at least partially of nanocrystalline or microcrystalline oxides or mixed oxides of the metallic substrate. This results in an at least osteoconductive, structured, porous layer and thus direct bone contact.
- the main constituent of the surface layer preferably consists of the nano- or microcrystalline oxide or mixed oxide of the metallic base material, typically in a proportion of 60 to 99% by volume.
- the substrate consists of plastics, preferably polyoxymethylene (POM), polyether ether ketone (PEEK), polyaryl ether ketone (PAEK), polyether imide (PEI) or liquid crystalline polymer (LCP), polymethylpentene (PMP), polysulfone (PSU) ), Polyethylene sulfone (PESU or PES), polyethylene terephthalate (PETP), polymethyl methacrylate (PMMA) or ultra high molecular weight polyethylene (UHMW-PE), the substrate being provided with a metallic layer of valve metals. It can be used on elastic implants and prostheses.
- POM polyoxymethylene
- PEEK polyether ether ketone
- PAEK polyaryl ether ketone
- PEI polyether imide
- LCP liquid crystalline polymer
- PMP polymethylpentene
- PSU polysulfone
- PES Polyethylene sulfone
- PMMA polymethyl methacrylate
- the process according to the invention for producing a bioactive, porous surface layer containing calcium phosphate on valve metals or their alloys as well as valve metal coatings on a substrate is characterized by the features of claim 16.
- chelating agents a) inorganic carboxylic acids, in particular bi- or multidentates, or their carboxylates, in particular: citric acid, tartaric acid, nitriloacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), 1,2 Cyclohexanediamine tetraacetic acid (CDTA), diethylene triamine acetic acid (DTPA), 2-hydroxyethyl ethylene diamine triacetic acid, triethylene tetramine hexaacetic acid (TTHA); b) ketones, especially di- or multiketones, in particular ß-diketone (CH 3 -CO-CH 2 - CO-CH 3 ); c) organophosphoric acids or phosphates (with> 2 phosphate groups); d) organophosphonic acids or phosphonates (with> 2 phosphonate groups); e) organophosphorous acids or phosphites (with> 2 phosphite groups); as
- the concentration of the complexing agent is advantageously 0.06 to 0.24 mol / l.
- the calcium bis (dihydrogen phosphate) is advantageously used as the phosphate compound, typically with a concentration of 0.01 to 0.05 mol / l.
- the water-soluble calcium compounds are preferably used at a concentration of 0.03 to 0.15 mol / l.
- Suitable basic additives are hydroxide compounds, preferably sodium or potassium hydroxide, typically with a concentration of 0.5 to 1.5 mol / l.
- the parameters of the anodization process are selected such that the layer is formed by a reaction between the substrate and the electrolyte, the layer already formed by the Spark discharge partially recrystallized.
- the temperature of the electrolyte is expediently 10 to 90 ° C., preferably 20 to 75 ° C. during the coating process.
- substrates made from the elements Ti, Zr, Ta, Nb, Al, V, Mg or their alloys or also barrier layer-forming metal coatings on any substrates of any shape and surface quality are coated on all sides or partially.
- the surface topography or morphology is advantageously influenced by chemical and / or mechanical pretreatments of the starting surface, the chemical pretreatment being an etching process and the mechanical pretreatment being a blasting process.
- a cylindrical disk made of pure titanium (height 1 mm, diameter 7 mm) was placed at a temperature of 25 ° C in the following electrolyte solution:
- the light gray coating obtained had the following concentration ratios
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material 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)
- Dermatology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Inorganic Chemistry (AREA)
- Vascular Medicine (AREA)
- Medicinal Chemistry (AREA)
- Epidemiology (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
- Medicinal Preparation (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002577023A JP2004531305A (ja) | 2001-04-02 | 2001-04-02 | 特に医療インプラントおよびプロテーゼ用の生体活性表面層 |
US10/473,768 US20050019365A1 (en) | 2001-04-02 | 2001-04-02 | Bioactive surface layer, particularly for medical implants and prostheses |
DK01916831T DK1372749T3 (da) | 2001-04-02 | 2001-04-02 | Bioaktivt overfladelag, især til medicinske implantater og proteser |
PT01916831T PT1372749E (pt) | 2001-04-02 | 2001-04-02 | Camada superficial bioactiva, em particular, para implantes e proteses em medicina |
ES01916831T ES2227163T3 (es) | 2001-04-02 | 2001-04-02 | Capa superficial bioactiva principalmente para protesis e implantes medicos. |
AT01916831T ATE278427T1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
PCT/CH2001/000210 WO2002078759A1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
EP01916831A EP1372749B1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
PL01362841A PL362841A1 (en) | 2001-04-02 | 2001-04-02 | Bioactive surface layer, particularly for medical implants and prostheses |
AU2001244019A AU2001244019B2 (en) | 2001-04-02 | 2001-04-02 | Bioactive surface layer, particularly for medical implants and prosthesis |
CA2442582A CA2442582C (en) | 2001-04-02 | 2001-04-02 | Bioactive surface layer, particularly for medical implants and prostheses |
DE50104050T DE50104050D1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
CNB018231101A CN1296101C (zh) | 2001-04-02 | 2001-04-02 | 用于医用植入体和假牙的生物活性表面层 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2001/000210 WO2002078759A1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002078759A1 true WO2002078759A1 (de) | 2002-10-10 |
Family
ID=4358188
Family Applications (1)
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PCT/CH2001/000210 WO2002078759A1 (de) | 2001-04-02 | 2001-04-02 | Bioaktive oberflächenschicht, insbesondere für medizinische implantate und prothesen |
Country Status (13)
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US (1) | US20050019365A1 (de) |
EP (1) | EP1372749B1 (de) |
JP (1) | JP2004531305A (de) |
CN (1) | CN1296101C (de) |
AT (1) | ATE278427T1 (de) |
AU (1) | AU2001244019B2 (de) |
CA (1) | CA2442582C (de) |
DE (1) | DE50104050D1 (de) |
DK (1) | DK1372749T3 (de) |
ES (1) | ES2227163T3 (de) |
PL (1) | PL362841A1 (de) |
PT (1) | PT1372749E (de) |
WO (1) | WO2002078759A1 (de) |
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- 2001-04-02 DE DE50104050T patent/DE50104050D1/de not_active Expired - Lifetime
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Cited By (28)
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EP1406552B1 (de) * | 2001-07-04 | 2011-10-05 | Nobel Biocare Services AG | Verfahren zur behandlung eines implantats und ein solches implantat |
EP2308410A1 (de) * | 2001-07-04 | 2011-04-13 | Nobel Biocare Services AG | Implantat |
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EP1406550B1 (de) * | 2001-07-04 | 2010-09-22 | Nobel Biocare AB (publ) | Implantat |
US9931184B2 (en) | 2003-12-11 | 2018-04-03 | Nobel Biocare Services Ag | Arrangement with an implant and/or a unit belonging to said implant, and method for production of the implant and/or unit |
EP1696816B2 (de) † | 2003-12-11 | 2013-10-30 | Nobel Biocare Services AG | Anordnung mit einem implantat und/oder einer zu dem implantat gehörenden einheit, und verfahren zur herstellung des implantats und/oder der einheit |
WO2006008104A1 (de) * | 2004-07-21 | 2006-01-26 | Ossacur Ag | Implantierbarer körper für die spinalfusion |
WO2007029602A1 (ja) * | 2005-09-08 | 2007-03-15 | Kinki University | 骨代替材料、該骨代替材料を含む医療用材料、及び該骨代替材料の製造方法 |
EP1891989A1 (de) * | 2006-08-23 | 2008-02-27 | Estoppey-Reber SA | Verfahren zur Erzeugung einer degradationsresistenten Oberflächenschicht auf einem aus Titan oder aus einer Titanlegierung bestehenden Gegenstand |
WO2008074175A3 (de) * | 2006-12-21 | 2009-03-26 | Thommen Medical Ag | Bioaktive implantatbeschichtung |
WO2009037670A3 (en) * | 2007-09-21 | 2009-06-25 | Vilardell Purti S A | Method for maximising and rendering uniform the contact surface on an implant |
DE102008026558A1 (de) | 2008-06-03 | 2010-01-14 | Königsee Implantate und Instrumente zur Osteosynthese GmbH | Elektrochemisches Tauchverfahren in einem wässrigen Elektrolyt zur Erzeugung einer biologisch degradationsstabilen Oberflächenschicht auf Grundkörpern aus Titan oder Titanbasislegierungen |
DE102008026557A1 (de) | 2008-06-03 | 2009-12-17 | Königsee Implantate und Instrumente zur Osteosynthese GmbH | Elektrochemisch hergestellte, biologisch degradationsstabile, duktile und haftfeste Titanoxid-Oberflächenschicht auf Titan oder Titanbasislegierungen |
WO2009147044A1 (de) * | 2008-06-03 | 2009-12-10 | Königsee Implantate und Instrumente zur Osteosynthese GmbH | Elektrochemisch hergestellte, biologisch degradationsstabile, duktile und haftfeste titanoxid-oberflächenschicht auf titan oder titanbasislegierungen |
DE102008046197B3 (de) * | 2008-09-05 | 2009-12-24 | Verein zur Förderung von Innovationen durch Forschung, Entwicklung und Technologietransfer e.V. (Verein INNOVENT e.V.) | Degradierbares Implantat und Verfahren zu seiner Herstellung sowie deren Verwendung |
DE102008046197B8 (de) * | 2008-09-05 | 2010-05-20 | Verein zur Förderung von Innovationen durch Forschung, Entwicklung und Technologietransfer e.V. (Verein INNOVENT e.V.) | Degradierbares Implantat und Verfahren zu seiner Herstellung sowie deren Verwendung |
WO2011000970A2 (en) | 2009-07-03 | 2011-01-06 | Armbruster Biotechnology Gmbh | Bone graft and biocomposite for prosthetic dentistry |
EP2269663A2 (de) | 2009-07-03 | 2011-01-05 | Armbruster Biotechnology GmbH | Knochenimplantat und Bioverbundstoff |
DE102011018677A1 (de) | 2011-04-21 | 2012-10-25 | Zl Microdent-Attachment Gmbh & Co. Kg | Implantat und Verfahren zur Herstellung einer Implantatoberfläche |
EP2517737A2 (de) | 2011-04-21 | 2012-10-31 | ZL Microdent-Attachment GmbH & Co. KG | Implantat und Verfahren zur Herstellung einer Implantatoberfläche |
WO2012167063A1 (en) * | 2011-06-03 | 2012-12-06 | Synthes Usa, Llc | Surgical implant |
US9283303B2 (en) | 2011-06-03 | 2016-03-15 | DePuy Synthes Products, Inc. | Surgical implant |
US9702037B2 (en) | 2011-06-03 | 2017-07-11 | DePuy Synthes Products, Inc. | Surgical implant |
KR20140033197A (ko) * | 2011-06-03 | 2014-03-17 | 신세스 게엠바하 | 외과용 임플란트 |
KR101951635B1 (ko) | 2011-06-03 | 2019-02-25 | 신세스 게엠바하 | 외과용 임플란트 |
US11357600B2 (en) | 2014-12-16 | 2022-06-14 | Nobel Biocare Services Ag | Dental implant |
US11918434B2 (en) | 2014-12-16 | 2024-03-05 | Nobel Biocare Services Ag | Dental implant |
EP3231453A1 (de) | 2016-04-14 | 2017-10-18 | Immundiagnostik AG | Bone-sialopreotein(bsp)-funktionalisierte knochenersatzkörper |
Also Published As
Publication number | Publication date |
---|---|
DK1372749T3 (da) | 2004-12-20 |
CN1296101C (zh) | 2007-01-24 |
PL362841A1 (en) | 2004-11-02 |
CA2442582A1 (en) | 2002-10-10 |
DE50104050D1 (de) | 2004-11-11 |
CN1505532A (zh) | 2004-06-16 |
ES2227163T3 (es) | 2005-04-01 |
ATE278427T1 (de) | 2004-10-15 |
AU2001244019B2 (en) | 2004-09-30 |
JP2004531305A (ja) | 2004-10-14 |
EP1372749B1 (de) | 2004-10-06 |
US20050019365A1 (en) | 2005-01-27 |
PT1372749E (pt) | 2005-02-28 |
CA2442582C (en) | 2011-01-04 |
EP1372749A1 (de) | 2004-01-02 |
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