WO2009036845A2 - Endoprothesenkomponente - Google Patents
Endoprothesenkomponente Download PDFInfo
- Publication number
- WO2009036845A2 WO2009036845A2 PCT/EP2008/006524 EP2008006524W WO2009036845A2 WO 2009036845 A2 WO2009036845 A2 WO 2009036845A2 EP 2008006524 W EP2008006524 W EP 2008006524W WO 2009036845 A2 WO2009036845 A2 WO 2009036845A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic
- component
- microns
- coating
- endoprosthesis
- Prior art date
Links
Classifications
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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
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- 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
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- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
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- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
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- A—HUMAN NECESSITIES
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- 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
- A61L27/02—Inorganic materials
- A61L27/10—Ceramics or glasses
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- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
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- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
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- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- 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
- A61F2250/0026—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 surface structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
- A61F2310/00203—Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
- A61F2310/00239—Ceramics or ceramic-like structures based on metal oxides containing zirconia or zirconium oxide ZrO2
-
- 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
- A61F2310/00407—Coating made of titanium or of Ti-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
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/18—Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00836—Uses not provided for elsewhere in C04B2111/00 for medical or dental applications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/963—Surface properties, e.g. surface roughness
Definitions
- the invention relates to a Endoprothesenkomponente, which is formed of a ceramic material and in which the ceramic material is partially coated with a titanium alloy.
- An uncoated surface portion of the endoprosthesis component is designed to interact as a sliding surface with another endoprosthesis component.
- a coated surface portion of the endoprosthesis component is designed to bond to a bone.
- the invention further relates to a method for producing such an endoprosthesis component.
- the invention relates to a method for producing a ceramic component, to which the coating of the titanium alloy can be applied. In the method, a starting material in powder form is introduced into a shape predetermining the shape of the ceramic component. Subsequently, the ceramic component is sintered in several steps.
- Ceramic materials combine high mechanical strength and dimensional stability with good biocompatibility. Ceramic materials are therefore used in the manufacture of endoprostheses.
- the titanium alloy does not form a chemical or metallurgical bond with the ceramic material.
- the connection between the titanium alloy and the ceramic material is therefore a purely mechanical one.
- the titanium alloy is to be applied to the ceramic material by plasma spraying.
- the surface of the ceramic material to be coated should be rough.
- the invention is based on the object to present a Endoprothesenkomponente of the type described above, in which the coating adheres better to the ceramic material.
- the invention is further based on the object to present a method for producing such a prosthesis and a method for producing a corresponding ceramic component.
- the objects are achieved by the features of the independent claims.
- Advantageous embodiments can be found in the subclaims.
- the part of the ceramic material forming an interface with the coating has a roughness R a between 2.5 ⁇ m and 7 ⁇ m, preferably between 3.5 ⁇ m and 5 ⁇ m.
- the term roughness is used to quantify the unevenness of a surface.
- the roughness data in the context of the invention relate to the average roughness R a according to DIN EN ISO 4288 and 3274.
- the Endoprothesenkomponente is formed of a ceramic material.
- the surface formed by the ceramic material is partially coated with a titanium alloy.
- the titanium coating does not necessarily form the outermost layer of the endoprosthesis component, but rather another layer, for example of a material that stimulates bone growth, may be applied to the titanium coating.
- Part of the surface is uncoated and designed to interact as a sliding surface with another prosthetic component. The uncoated area and the sliding area are not necessarily identical.
- the ceramic material In the coated area, there is an interface between the ceramic material and the titanium alloy.
- the formation of the ceramic material at the interface determines the strength of the bond between the coating and the ceramic material.
- Tests have shown that the bond between the coating and the ceramic material is insufficient if the roughness R a of the ceramic material at the interface is less than 2 ⁇ m.
- a good adhesion is achieved from a roughness R a of 2, 5 microns.
- the adhesion is further improved if the roughness R a is greater than 3.5 ⁇ m.
- the coating can be applied in a single operation. If the roughness is too large, several layers must be applied one after the other so that the ceramic surface is completely covered and the layer thickness is sufficient everywhere.
- the roughness R a of the ceramic material at the interface should therefore not be greater than 7 ⁇ m, preferably not greater than 5 ⁇ m.
- the US Food and Drug Administration states that the bond strength between the coating and the ceramic material, as determined by ASTM F1147, should be at least 22 MPa. In order to maintain a safe distance from this limit, the adhesive tensile strength between the coating and the ceramic material in the endoprosthesis component according to the invention should be at least 25 Mpa, preferably at least 30 MPa, more preferably at least 40 MPa.
- the layer thickness of the coating determined according to ASTM F1854 is preferably between 100 ⁇ m and 250 ⁇ m, preferably between 150 ⁇ m and 200 ⁇ m.
- the pore content determined according to ASTM F1854 is between 20% and 40%.
- the pore size also determined according to ASTM F1854 is between 30 ⁇ m and 70 ⁇ m, preferably between 40 ⁇ m and 60 ⁇ m.
- Suitable ceramic materials for the endoprosthesis component according to the invention are zirconium oxide, aluminum umoxid and mixtures of both proved.
- the term titanium alloy includes pure titanium.
- the endoprosthesis component is preferably one of several components of a disc prosthesis.
- Sliding surface formed part forms the sliding surface of the disc prosthesis.
- the method according to the invention for producing an endoprosthesis component initially selects a correspondingly shaped ceramic component in which the surface to be coated has a roughness R a of between 2.5 ⁇ m and 7 ⁇ m, preferably between 3.5 ⁇ m and 5 ⁇ m.
- a titanium alloy is applied by plasma spraying.
- Plasma spraying is a process by which a gas is passed through an arc and thereby ionized. The coating material is introduced into the ionized gas in powder form and transported by the gas stream to the workpiece to be coated.
- a ceramic starting material in the form of a powder is first of all filled into a mold which predetermines the shape of the ceramic component. Since the volume of the ceramic component is reduced by subsequent processing steps, the shape is larger than the finished ceramic component. A stable internal structure of the ceramic component is through subsequent sintering achieved. The sintering creates solid bonds between the particles of the powder.
- the sintering is carried out in several steps.
- a first step the ceramic component is pre-sintered at a lower temperature, so that only narrow bridges form between the grains of the powder.
- the ceramic component In the pre-sintered state, the ceramic component is accessible for mechanical processing.
- the inner structure is so strong that the ceramic component retains its shape despite mechanical action.
- the bridges can be broken open again so easily that the material can be processed comparatively easily.
- the higher the temperature of the pre-sintering the more stable the bridges and the more complex the mechanical processing. The temperature of the pre-sintering is therefore chosen as low as possible, so that the bridges just have sufficient stability to hold the ceramic component in shape.
- Ceramic components made of zirconium niumoxid (ZrO 2) and alumina (Al 2 O 3) may be pre-sintered prior to machining usually carried out at temperatures below 850 0 C. Typical steps in mechanical machining are drilling and milling. There are no known steps of mechanical processing with which the roughness R a of the surface can subsequently be increased to values between 2.5 ⁇ m and 7 ⁇ m.
- the ceramic component is pre-sintered at a temperature between 880 0 C and 980 0 C, preferably between 900 0 C and 950 0 C. Subsequently, the surface of the ceramic component is treated with a blasting material. Experiments have shown that at a vorgesintererten with this temperature component, the treatment with a blast to desired surface roughness leads. The internal structure of the ceramic component after pre-sintering is thus just such that fragments of the desired size can be broken out of the component with the blasting material.
- the endoprosthesis component according to the invention only a part of the surface is coated, while another part of the surface is designed to cooperate as a sliding surface with another endoprosthesis component.
- the roughness of the surface should be as low as possible. If the smoothest possible surface is to be achieved, it is not expedient to increase the roughness of the surface beforehand by treating it with a blasting material. Preferably, therefore, only a part of the surface of the ceramic component is treated with the blasting material while another part of the surface remains recessed from the treatment with the blasting material.
- the particle size of the blasting material is preferably of the same order of magnitude as the particle size of the ceramic starting material.
- the blasting material can then act particularly effective on the ceramic component. However, when using such a blasting material, there is the risk that particles of the blasting material settle in the gaps of the ceramic material which are produced by the blasted out material
- the particles then represent impurities in the ceramic material. Impurities of this type can be prevented by using as blasting material a powder which corresponds to the powder of the ceramic starting material. If particles of this material settle in the ceramic component, they do not change the homogeneous composition of the ceramic material.
- FIG. 1 shows a disc prosthesis in section
- FIG. 2 shows an enlarged detail of the intervertebral disc prosthesis according to FIG. 1
- FIG. 1 shows a disc prosthesis in section
- FIG. 3 is a schematic representation of the internal structure of the ceramic material in the initial state;
- FIG. 4 shows the view from FIG. 3 after pre-sintering;
- 5 shows the view from FIG. 3 after sintering.
- an endoprosthesis designed as an intervertebral disc prosthesis is inserted into an intervertebral space between two vertebral bodies 6, 7.
- the intervertebral disc prosthesis comprises a first connection plate 1 and a second connection plate 2.
- the first connection plate 1 is an endoprosthesis component designed for connection to a first vertebral body 6
- the second connection plate 2 is an endoprosthesis component designed for connection to a second vertebral body 7 ,
- the first connection plate 1 and the second connection plate 2 abut each other via matching sliding surfaces 3.
- the sliding surfaces 3 form a joint for movements between the upper connection plate 1 and the lower connection plate 2.
- projections 12 are formed in regions 13 of the surfaces of the connection plates 1, 2, with which the connection plates 1, 2 bear against the bone material of the vertebral bodies 6, 7, projections 12 are formed.
- the projections 12 have a flatter edge in the direction in which the connection plates 1, 2 in the intermediate vortex space are inserted, and a steeper flank in the opposite direction. Due to the flatter edge, the insertion of the connection plates 1, 2 is facilitated in the intervertebral space.
- the steeper flank offers the connection plates 1, 2 hold when the projections 12 have penetrated into the bone material of the vertebral bodies 6, 7.
- the steeper flanks prevent the connection plates 1, 2 from being pulled out of the intervertebral space in the opposite direction.
- connection plates 1, 2 are intended to abut against the ventral side of the vertebral bodies 6, 7. Because of the flanges 4, 5, the connection plates 1, 2 in the dorsal direction can not be inserted beyond the desired position in the Eisenwirbelhoffm.
- the terminal plate 1 and the terminal plate 2 are formed of a ceramic material 9.
- the sliding surfaces 3 on the connection plates 1, 2 are formed on a surface of the ceramic material 9.
- the regions 13, via which a connection to the bone material is produced, are covered with a coating 10 made of a titanium alloy.
- FIG. 2 shows an enlarged detail of a connection plate 1, 2, in which the boundary surface 8 between the
- Ceramic material 9 and the coating 10 is shown.
- the ceramic material 9 has at the interface 8 to the coating 10 a roughness R a , which is at least 2.5 microns. This roughness at the interface 8 is sufficient to establish a stable bond with the coating 10, but is not sufficient for a stable bond with bone material.
- the coating 10 has a greater roughness and greater porosity than the ceramic material 9 and goes therefore a stable connection with the bone material.
- a starting material in powder form is first introduced into a mold whose shape corresponds to the ceramic component to be produced. Since the ceramic component loses volume through the subsequent process steps, the mold has larger dimensions than the finished ceramic component.
- the powder is mechanically compressed, for example by shaking and pressure, the particles 14 of the powder then lie next to one another, as shown schematically in FIG. 3. By presintering at a temperature of 92O 0 C, bridges formed between the particles 14 are formed in FIG. 4. The internal structure of the material is now so stable that the ceramic component can be removed from the mold.
- the ceramic material has a greater stability in its structure than would be chosen for mechanical machining by drilling or milling.
- the stability of the structure is just adjusted so that fragments from the pre-sintered ceramic material can be dissolved out by irradiating with a powder which corresponds to the starting material. The fragments are so large that the desired surface roughness arises.
- the ceramic component is sintered at a temperature higher than the pre-sintering temperature. At the interfaces of So far only connected via the bridges 15 particles form planar connections 16. As the cavities disappear from the interior, the volume of the ceramic component continues to decrease. On the part of the surface treated with the jet, the surface now has a roughness R a of about 4 ⁇ m. A coating of a titanium alloy applied to this surface portion adheres firmly to the surface.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010524366A JP5393683B2 (ja) | 2007-09-13 | 2008-08-07 | 内部人工器官部品 |
EP08785430.3A EP2187843B1 (de) | 2007-09-13 | 2008-08-07 | Endoprothesenkomponente |
CN200880106040.7A CN102006838B (zh) | 2007-09-13 | 2008-08-07 | 内置式假肢部件 |
ES08785430.3T ES2557179T3 (es) | 2007-09-13 | 2008-08-07 | Componente de endoprótesis |
PCT/EP2009/005746 WO2010015414A1 (de) | 2008-08-07 | 2009-08-07 | Verfahren zum herstellen eines keramikbauteils |
ES09804525T ES2570975T3 (es) | 2008-08-07 | 2009-08-07 | Procedimiento para producir un componente cerámico |
EP09804525.5A EP2331483B1 (de) | 2008-08-07 | 2009-08-07 | Verfahren zum herstellen eines keramikbauteils |
CN2009801294353A CN102137827B (zh) | 2008-08-07 | 2009-08-07 | 制造陶瓷元件的方法 |
JP2011521487A JP5535212B2 (ja) | 2008-08-07 | 2009-08-07 | セラミック部材の製造方法 |
US13/057,913 US20110127700A1 (en) | 2008-08-07 | 2009-08-07 | Method for producing a ceramic component |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07018010 | 2007-09-13 | ||
EP07018010.4 | 2007-09-13 | ||
US97394007P | 2007-09-20 | 2007-09-20 |
Publications (2)
Publication Number | Publication Date |
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WO2009036845A2 true WO2009036845A2 (de) | 2009-03-26 |
WO2009036845A3 WO2009036845A3 (de) | 2009-07-16 |
Family
ID=41527436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/006524 WO2009036845A2 (de) | 2007-09-13 | 2008-08-07 | Endoprothesenkomponente |
Country Status (8)
Country | Link |
---|---|
US (1) | US8241361B2 (de) |
EP (1) | EP2187843B1 (de) |
JP (1) | JP5393683B2 (de) |
CN (1) | CN102006838B (de) |
AR (1) | AR068437A1 (de) |
ES (1) | ES2557179T3 (de) |
TW (1) | TWI554257B (de) |
WO (1) | WO2009036845A2 (de) |
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US8241361B2 (en) | 2007-09-13 | 2012-08-14 | Deru Gmbh | Endoprosthesis component |
WO2012126448A1 (de) * | 2011-03-21 | 2012-09-27 | Zm Präzisionsdentaltechnik Gmbh | Verfahren zur herstellung einer strukturierten beschichtung auf keramischen implantaten |
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- 2008-08-07 ES ES08785430.3T patent/ES2557179T3/es active Active
- 2008-08-07 WO PCT/EP2008/006524 patent/WO2009036845A2/de active Application Filing
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US8241361B2 (en) | 2007-09-13 | 2012-08-14 | Deru Gmbh | Endoprosthesis component |
JP2011529850A (ja) * | 2008-08-07 | 2011-12-15 | デル・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | セラミック部材の製造方法 |
WO2012126448A1 (de) * | 2011-03-21 | 2012-09-27 | Zm Präzisionsdentaltechnik Gmbh | Verfahren zur herstellung einer strukturierten beschichtung auf keramischen implantaten |
DE102013102370A1 (de) | 2013-03-11 | 2014-09-11 | Dot Gmbh | Verfahren zur Herstellung eines funktionalisierten Implantats sowie funktionalisiertes Implantat |
EP2786771A2 (de) | 2013-03-11 | 2014-10-08 | DOT GmbH | Verfahren zur Herstellung eines funktionalisierten Implantats sowie funktionalisiertes Implantat |
EP2786771A3 (de) * | 2013-03-11 | 2015-10-14 | DOT GmbH | Verfahren zur Herstellung eines funktionalisierten Implantats sowie funktionalisiertes Implantat |
EP3072534A1 (de) | 2013-03-11 | 2016-09-28 | DOT GmbH | Verfahren zur herstellung eines funktionalisierten implantats sowie funktionalisiertes implantat |
Also Published As
Publication number | Publication date |
---|---|
JP5393683B2 (ja) | 2014-01-22 |
TW200918030A (en) | 2009-05-01 |
CN102006838A (zh) | 2011-04-06 |
CN102006838B (zh) | 2014-07-23 |
EP2187843A2 (de) | 2010-05-26 |
US20090082849A1 (en) | 2009-03-26 |
US8241361B2 (en) | 2012-08-14 |
ES2557179T3 (es) | 2016-01-22 |
WO2009036845A3 (de) | 2009-07-16 |
JP2010538713A (ja) | 2010-12-16 |
TWI554257B (zh) | 2016-10-21 |
EP2187843B1 (de) | 2015-10-07 |
AR068437A1 (es) | 2009-11-18 |
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