FR2510395A2 - Bone prosthesis with titanium shaft and mesh - coated with material having low elasticity - Google Patents
Bone prosthesis with titanium shaft and mesh - coated with material having low elasticity Download PDFInfo
- Publication number
- FR2510395A2 FR2510395A2 FR8114841A FR8114841A FR2510395A2 FR 2510395 A2 FR2510395 A2 FR 2510395A2 FR 8114841 A FR8114841 A FR 8114841A FR 8114841 A FR8114841 A FR 8114841A FR 2510395 A2 FR2510395 A2 FR 2510395A2
- Authority
- FR
- France
- Prior art keywords
- rod
- mesh
- titanium
- lattice
- bone
- 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.)
- Granted
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
- A61F2/30—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
- 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
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
-
- 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
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/12—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L31/125—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L31/127—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix containing fillers of phosphorus-containing inorganic materials
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- A—HUMAN NECESSITIES
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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
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
- A61F2/30—Joints
- A61F2/32—Joints for the hip
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-
- A—HUMAN NECESSITIES
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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
- A61F2/30—Joints
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- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
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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
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/3676—Distal or diaphyseal parts of 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
- 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
- A61F2002/30014—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 elasticity, stiffness or compressibility
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
- 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
- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
-
- 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
- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
- A61F2002/30064—Coating or prosthesis-covering structure made of biodegradable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30322—The prosthesis having different structural features at different locations within the same prosthesis differing in surface structures
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- A—HUMAN NECESSITIES
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
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- A61F2/02—Prostheses implantable into the body
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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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- A61F2/36—Femoral heads ; Femoral endoprostheses
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-
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- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
-
- 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
- A61F2250/0018—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 elasticity, stiffness or compressibility
-
- 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
- A61F2250/0026—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
- A61F2310/00011—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
- A61F2310/00407—Coating made of titanium or of Ti-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
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
- A61F2310/00982—Coating made of collagen
-
- 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
- A61L2430/24—Materials or treatment for tissue regeneration for joint reconstruction
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Epidemiology (AREA)
- Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Materials For Medical Uses (AREA)
- Prostheses (AREA)
Abstract
Description
Tige en titane ou alliage de titane pour fixation sans ciment dans un os long pour prothèse.Titanium or titanium alloy rod for cementless fixation in a long bone for prosthesis.
La présente invention concerne une tige en titane ou alliage de titane pour fixation sans ciment dans un os long pour prothèse articulaire et matériel de réparation osseuse, entourée d'un treillis de fil de titane de maille de dimension au moins égale à 0,3 mm,la tige et le treillis étant munis d'un revêtement de protection contre la corrosion à long terme en oxyde de titane. The present invention relates to a titanium or titanium alloy rod for cementless fixation in a long bone for joint prosthesis and bone repair material, surrounded by a lattice of titanium wire mesh of dimension at least equal to 0.3 mm. , the rod and the trellis being provided with a long-term corrosion protection coating of titanium oxide.
La tige selon le brevet principal permet d'obtenir une structure composite treillis-os de module d'élasticité voisin de celui de l'os cortical, exempte de risque de corrosion à long terme et favorisant une repousse sur toute sa longueur. The rod according to the main patent makes it possible to obtain a lattice-bone composite structure with a modulus of elasticity close to that of the cortical bone, free from the risk of long-term corrosion and promoting regrowth over its entire length.
Toutefois, durant l'implantation de la tige dans la cavité médullaire de l'os long, le treillis peut être détérioré par suite d'un emmanchement à force de la tige, qu'il est nécessaire de réaliser pour bloquer celle-ci et éviter tout micro-mouvement par rapport à l'os, ce blocage étant difficile à réaliser, vue la diversité anatomique des os en cause, même si l'on dispose d'une gamme importante de tiges de dimensions différentes. However, during the implantation of the rod in the medullary cavity of the long bone, the trellis can be damaged due to a force fitting of the rod, which must be carried out to block the latter and avoid any micro-movement with respect to the bone, this blocking being difficult to achieve, given the anatomical diversity of the bones in question, even if there is a large range of rods of different dimensions.
Le présent perfectionnement a donc pour but de protéger le treillis contre de telles détériorations et de lui permettre d'épouser les parois internes de l'os. The present improvement therefore aims to protect the lattice against such deterioration and to allow it to marry the internal walls of the bone.
La tige selon l'invention est caractérisée en ce que le treillis est enrobé d'un matériau biocompatible biodégradable de faible module d'élasticité. The rod according to the invention is characterized in that the trellis is coated with a biocompatible biodegradable material of low elasticity modulus.
Elle répond en outre de préférence à au moins l'une des caractéristiques suivantes
- Le matériau biocompatible biodégradable est un copolymère d'acide lactique et d'acide glycolique.It also preferably meets at least one of the following characteristics
- The biocompatible biodegradable material is a copolymer of lactic acid and glycolic acid.
- Le matériau biocompatible biodégradable est du collagène. - The biocompatible biodegradable material is collagen.
- Le matériau biocompatible biodégradable est additionné de phosphate tricalcique. - The biocompatible biodegradable material is added with tricalcium phosphate.
- L'enrobage de matériau biocompatible biodégradable dépasse l'enveloppe du treillis de 0,3 à 1,5 mm. - The coating of biodegradable biocompatible material exceeds the envelope of the mesh by 0.3 to 1.5 mm.
- Dans une tige pour fixation sans ciment dans la partie supérieure du fémur, le treillis lui est fixé par l'intermédiaire de minces bandes transversales en titane ou alliage de titane, disposées à l'extérieur du treillis métallique et soudées aux surfaces latérales sensiblement planes de la tige sous le rebord d'appui sur la partie supérieure du fémur après résection de sa tête, ainsi que par un point de soudure à la pointe inférieure de la tige. - In a rod for cementless fixation in the upper part of the femur, the trellis is fixed to it by means of thin transverse strips of titanium or titanium alloy, arranged outside the metallic trellis and welded to the substantially flat lateral surfaces. of the rod under the support rim on the upper part of the femur after resection of its head, as well as by a spot of welding at the lower point of the rod.
- Une tige pour fixation sans ciment dans la partie supérieure du fémur est munie sur deux de ses faces opposées d'épaulements disposés dans des plans perpendiculaires à son axe, sur toute sa hauteur jusqu'au rebord d'appui sur la partie supérieure du fémur après résection de sa tête.- A rod for cementless fixation in the upper part of the femur is provided on two of its opposite faces with shoulders arranged in planes perpendicular to its axis, over its entire height up to the support rim on the upper part of the femur after resection of his head.
Il est décrit ci-après, à titre d'exemple et en référence aux figures du dessin annexé, une tige pour fixation sans ciment dans la partie supérieure du fémur, en vue d'une prothèse de hanche. It is described below, by way of example and with reference to the figures of the appended drawing, a rod for cementless fixation in the upper part of the femur, for a hip prosthesis.
La figure 1 représente la tige en élévation latérale du côté des faces comportant les épaulements. Figure 1 shows the rod in side elevation on the side of the faces having the shoulders.
La figure 2 la représente en élévation latérale du côté convexe de l'une des autres faces. 2 shows the side elevation of the convex side of one of the other faces.
La figure 3 représente une coupe transversale par l'axe III-III de la figure 2. FIG. 3 represents a cross section through the axis III-III of FIG. 2.
La tige 1 comporte un rebord 2 d'appui sur la partie supérieure du fémur après sa résection, et un col 3 se terminant par un tenon conique 4 destiné à être implanté dans une tête sphérique (non représentée). The rod 1 has a flange 2 for bearing on the upper part of the femur after resection, and a neck 3 ending in a conical post 4 intended to be implanted in a spherical head (not shown).
Ses faces latérales vues dans la figure 1 comportent chacune un canal central 5 sur la plus grande partie de leur hauteur, et des épaulements successifs tels que 6, 7, 8 lui donnant l'aspect d'une surface en écailles de poisson doubles 9, 10, 11, puis simples 12, 13. Elle est entourée d'un treillis de fil de titane 14 enrobé d'un copolymère biodégradable d'acide lactique et d'acide glycolique, ou bien de collagène, visible en 15 en figure 3. Ce treillis est tel qu'au cours de la repousse osseuse le module d'élasticité du matériau composite treillis-os naissant soit voisin de celui de l'os existant. Its lateral faces seen in FIG. 1 each have a central channel 5 over most of their height, and successive shoulders such as 6, 7, 8 giving it the appearance of a surface in double fish scales 9, 10, 11, then simple 12, 13. It is surrounded by a lattice of titanium wire 14 coated with a biodegradable copolymer of lactic acid and glycolic acid, or else of collagen, visible in 15 in FIG. 3. This lattice is such that during bone regrowth the elastic modulus of the nascent lattice-bone composite material is close to that of the existing bone.
Claims (1)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8114841A FR2510395B2 (en) | 1978-06-29 | 1981-07-30 | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
EP82106775A EP0071242B1 (en) | 1981-07-30 | 1982-07-27 | Prosthetic stem composed of titanium or its alloys for the cementless fixation in a long bone |
AT82106775T ATE23945T1 (en) | 1981-07-30 | 1982-07-27 | TITANIUM OR TITANIUM ALLOY PROSTHETIC STEM FOR CEMENTLESS FIXATION IN A LONG BONE. |
DE8282106775T DE3274519D1 (en) | 1981-07-30 | 1982-07-27 | Prosthetic stem composed of titanium or its alloys for the cementless fixation in a long bone |
US06/402,699 US4495664A (en) | 1981-07-30 | 1982-07-28 | Titanium or titanium alloy pin for cement-free fixing in a long bone to form a prosthesis |
ES514515A ES8306015A2 (en) | 1981-07-30 | 1982-07-29 | Prosthetic stem composed of titanium or its alloys for the cementless fixation in a long bone. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7819448A FR2429589A1 (en) | 1978-06-29 | 1978-06-29 | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
FR8114841A FR2510395B2 (en) | 1978-06-29 | 1981-07-30 | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2510395A2 true FR2510395A2 (en) | 1983-02-04 |
FR2510395B2 FR2510395B2 (en) | 1987-05-29 |
Family
ID=26220649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8114841A Expired FR2510395B2 (en) | 1978-06-29 | 1981-07-30 | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2510395B2 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2017247A1 (en) * | 1968-09-03 | 1970-05-22 | Inst R Straumann Ag | |
FR2266491A1 (en) * | 1974-04-08 | 1975-10-31 | Garonne Ets Auriol & Cie | Hip prosthesis requiring reduced selection of pins - eliminating need to unfasten pin for replacement with more suitable prosthesis |
FR2310120A2 (en) * | 1975-05-05 | 1976-12-03 | Ceraver | Joint prosthesis with ball and socket - having aluminium oxide ball with titanium shaft coupled over metal insert |
FR2331320A1 (en) * | 1975-11-14 | 1977-06-10 | Gen Atomic Co | PROSTHESIS WITH A POROUS REGION CARRIED OUT BY A BUDDIN SPRING AND ASSOCIATED PREPARATION PROCESS |
FR2336913A1 (en) * | 1975-12-30 | 1977-07-29 | Sumitomo Chemical Co | IMPLANTS FOR BONES, JOINTS AND ROOTS OF TEETH AND METHOD OF MANUFACTURING |
FR2429589A1 (en) * | 1978-06-29 | 1980-01-25 | Ceraver | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
-
1981
- 1981-07-30 FR FR8114841A patent/FR2510395B2/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2017247A1 (en) * | 1968-09-03 | 1970-05-22 | Inst R Straumann Ag | |
FR2266491A1 (en) * | 1974-04-08 | 1975-10-31 | Garonne Ets Auriol & Cie | Hip prosthesis requiring reduced selection of pins - eliminating need to unfasten pin for replacement with more suitable prosthesis |
FR2310120A2 (en) * | 1975-05-05 | 1976-12-03 | Ceraver | Joint prosthesis with ball and socket - having aluminium oxide ball with titanium shaft coupled over metal insert |
FR2331320A1 (en) * | 1975-11-14 | 1977-06-10 | Gen Atomic Co | PROSTHESIS WITH A POROUS REGION CARRIED OUT BY A BUDDIN SPRING AND ASSOCIATED PREPARATION PROCESS |
FR2336913A1 (en) * | 1975-12-30 | 1977-07-29 | Sumitomo Chemical Co | IMPLANTS FOR BONES, JOINTS AND ROOTS OF TEETH AND METHOD OF MANUFACTURING |
FR2429589A1 (en) * | 1978-06-29 | 1980-01-25 | Ceraver | TITANIUM ROD OR TITANIUM ALLOY FOR CEMENT-FREE FIXING IN A LONG BONE FOR PROSTHESIS |
Also Published As
Publication number | Publication date |
---|---|
FR2510395B2 (en) | 1987-05-29 |
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