ITUD20070092A1 - Elemento protesico e relativo procedimento di realizzazione - Google Patents
Elemento protesico e relativo procedimento di realizzazione Download PDFInfo
- Publication number
- ITUD20070092A1 ITUD20070092A1 IT000092A ITUD20070092A ITUD20070092A1 IT UD20070092 A1 ITUD20070092 A1 IT UD20070092A1 IT 000092 A IT000092 A IT 000092A IT UD20070092 A ITUD20070092 A IT UD20070092A IT UD20070092 A1 ITUD20070092 A1 IT UD20070092A1
- Authority
- IT
- Italy
- Prior art keywords
- prosthetic element
- cap
- lattice
- prosthetic
- open
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 39
- 239000000843 powder Substances 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 14
- 210000003850 cellular structure Anatomy 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 210000004027 cell Anatomy 0.000 claims description 10
- 238000010894 electron beam technology Methods 0.000 claims description 9
- 230000001413 cellular effect Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000110 selective laser sintering Methods 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 229910000531 Co alloy Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 10
- 230000004927 fusion Effects 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 210000004197 pelvis Anatomy 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 210000001624 hip Anatomy 0.000 description 2
- 238000010883 osseointegration Methods 0.000 description 2
- 210000000588 acetabulum Anatomy 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000000316 bone substitute Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- 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
- A61F2/30771—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
- 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
- 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
- A61L27/04—Metals or alloys
- A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
-
- 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
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
- B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—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
- A61F2002/30004—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
- A61F2002/30006—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 density or specific weight
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- 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
- A61F2002/30107—Properties of materials and coating materials using materials or accessories for preventing galvanic or electrolytic corrosion
-
- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30143—Convex polygonal shapes hexagonal
-
- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30153—Convex polygonal shapes rectangular
-
- 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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
-
- 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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
-
- 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
- A61F2002/30316—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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
- A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
-
- 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
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30785—Plurality of holes parallel
-
- 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
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
-
- 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
- A61F2002/30909—Nets
- A61F2002/30914—Details of the mesh structure, e.g. disposition of the woven warp and weft wires
-
- 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
- A61F2002/30909—Nets
- A61F2002/30915—Nets made of a stack of bonded perforated sheets, grids or wire meshes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2002/30929—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having at least two superposed coatings
-
- 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
- A61F2002/30968—Sintering
-
- 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
- A61F2002/3097—Designing or manufacturing processes using laser
-
- 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
- A61F2002/30971—Laminates, i.e. layered products
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
- A61F2002/3403—Polar aperture
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/3453—Acetabular cups having a non-hemispherical convex outer surface, e.g. quadric-shaped
- A61F2002/3462—Acetabular cups having a non-hemispherical convex outer surface, e.g. quadric-shaped having a frustoconical external shape, e.g. entirely frustoconical
-
- 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
- A61F2/34—Acetabular cups
- A61F2002/348—Additional features
- A61F2002/3482—Two hemispherical halves having completely different 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
- 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
- A61F2210/0009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using materials or accessories for preventing galvanic or electrolytic corrosion
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0019—Angular shapes rectangular
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
-
- 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
- A61F2250/0015—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 density or specific weight
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0023—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity
- A61F2250/0024—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in porosity made from both porous and non-porous parts, e.g. adjacent parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of 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
- A61F2310/00395—Coating or prosthesis-covering structure made of metals or of alloys
- A61F2310/00413—Coating made of cobalt or of Co-based alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Description
Descrizione del trovato avente per titolo:
"ELEMENTO PROTESICO E RELATIVO PROCEDIMENTO DI REALIZZAZIONE "
CAMPO DI APPLICAZIONE
Il presente trovato si riferisce ad un elemento protesico a struttura cellulare, ed al relativo procedimento di realizzazione, impiegabile preferibilmente, ma non solo, nelle protesi destinate al ripristino dell'articolazione femorale .
Il trovato si applica nel settore medicale degli impianti di protesi ossee e dei sostituti ossei.
STATO DELLA TECNICA
Sono note le coppe acetabolari, di forma sostanzialmente sferica, destinate a sostituire o a rinforzare la cavità acetabolare naturale per accogliere la testa della relativa protesi femorale. Tali coppe acetabolari, generalmente realizzate in metallo, possono essere vantaggiosamente rivestite con materiali porosi al fine di migliorare il processo di osteointegrazione con il tessuto osseo del bacino.
Generalmente i materiali di comune utilizzo per realizzare il rivestimento delle coppe acetabolari sono costituiti da titanio in polvere o idrossiapatite . Questi materiali, solitamente, vengono fatti aderire alla superficie esterna della coppa acetabolare mediante la tecnica del plasmaspray, o con reti metalliche saldate o mediante piccole sfere applicate ad elevata temperatura.
Sono noti elementi protesici, del tipo di cui si discute, che presentano un corpo interno solido e compatto, mentre nella parte esterna è realizzato un reticolo che copre la coppa acetabolare. Tale reticolo è applicato su, oppure è distanziato dalla parete esterna della coppa.
Uno dei metodi utilizzati è il DMSLS (Direct Metal Selective Laser Sintering), o sinterizzazione selettiva a laser. Tale metodo DMSLS consente di realizzare prodotti e componenti in materiale metallico con un processo di solidificazione mediante raggio laser di strati successivi, di spessore predefinito, di polveri di materiale metallico. Ognuno dei suddetti strati è rappresentativo di una sezione orizzontale, di spessore predefinito, del modello tridimensionale del prodotto.
Un'altra tecnica è costituita dall'EBM (Electron Beam Melting), o fusione a fascio di elettroni, che permette la realizzazione di componenti, ad esempio in titanio, partendo da un bagno di polveri di titanio, mediante un processo di fusione in condizioni di vuoto spinto, e solidificazione di strati successivi come per la suddetta tecnica DMSLS.
Tali tecniche consentono il raggiungimento di precisioni elevate e la realizzazione di strutture volute.
Lo scopo del presente trovato è quindi quello di realizzare, con una delle tecniche note o con tecnica equivalente, un elemento protesico a struttura cellulare realizzata in corpo unico tale da favorire la ricrescita ossea e l'ancoraggio della protesi.
Per ovviare agli inconvenienti della tecnica nota e per ottenere questo ed ulteriori scopi e vantaggi, la Richiedente ha studiato, sperimentato e realizzato il presente trovato.
ESPOSIZIONE DEL TROVATO
Il presente trovato è espresso e caratterizzato nelle rivendicazioni indipendenti.
Le rivendicazioni dipendenti espongono altre caratteristiche del presente trovato, o varianti dell'idea di soluzione principale.
In accordo con il suddetto scopo, un elemento protesico a struttura cellulare secondo il presente trovato, è impiegabile in particolare, ma non solo, come coppa acetabolare per una protesi ossea nelle operazioni di impianto nell'acetabolo del bacino. Tale elemento protesico è atto ad accogliere una testa protesica o un inserto per coppa acetabolare nella quale a sua volta viene inserita la testa di una protesi femorale.
Secondo la caratteristica principale del presente trovato, l'elemento protesico con struttura cellulare aperta comprende una calotta in materiale metallico il cui corpo è costituito da un reticolo tridimensionale di spessore predefinito e voluto. Tale reticolo realizza una pluralità di cavità aperte e intercomunicanti, le quali sono collegate sia verso l'interno che verso l'esterno della calotta. Nella periferia più esterna e superficiale dell'elemento protesico tale reticolo definisce inoltre una geometria superficiale voluta.
Il suddetto reticolo viene, almeno in parte, definito mediante ripetizione spaziale di uno o più modelli , su tutto o parte del corpo ed in relazione allo spessore dell'elemento protesico, di una pluralità di maglie poligonali contigue i cui vertici non sono complanari.
Tale elemento protesico viene ottenuto attraverso deposizione e solidificazione con una o l'altra delle tecniche tipo EBM (Electron Beam Melting) o DMSLS (Direct Metal Selective Laser Sintering), o tecnica equivalente, di successivi strati piani di spessore determinato e limitato, di polveri di materiale metallico. La sequenza dei suddetti strati realizza gradatamente il relativo modello teorico tridimensionale, generato mediante strumenti di progettazione per elaboratore elettronico, dell'elemento protesico secondo il presente trovato e, nel contempo, crea il voluto reticolo cellulare.
Una soluzione preferenziale del presente trovato prevede che tale reticolo possieda una geometria cellulare a celle aperte. Secondo tale soluzione, il vuoto generato dalla figura geometrica viene selezionato in modo da garantire condizioni ottimali di integrazione e ricrescita ossea sulla superficie esterna dell'elemento protesico.
Tale reticolo, pertanto, garantisce all'elemento protesico un elevato grado di porosità. L'elemento protesico secondo il trovato è atto a sopportare i normali carichi fisiologici sia nel breve, sia nel lungo periodo, con un grado di rigidezza del tutto confrontabile con le protesi usuali.
Secondo una variante, l'elemento protesico secondo il presente trovato è realizzato in lega di titanio o altri materiali a lega, in virtù delle proprietà anche di biocompatibilità.
Il presente trovato si riferisce anche ad un procedimento per la realizzazione di un elemento protesico con struttura cellulare aperta comprendente una calotta vantaggiosamente in materiale metallico il cui corpo è almeno in parte costituito da un reticolo tridimensionale. Il reticolo tridimensionale così definito, crea una pluralità di cavità intercomunicanti.
II procedimento secondo il presente trovato utilizza almeno una fase in cui, mediante tecnica di fusione a fascio di elettroni, nota anche come EBM (Electron Beam Melting), o mediante tecnica di Sinterizzazione Laser Selettiva (DMSLS), o mediante tecnica equivalente, vengono deposti e fatti solidificare degli strati piani non continui di polveri di materiale metallico. Ciascuno di tali strati definisce una figura ottenuta per sezionamento del modello tridimensionale del reticolo e, nel contempo, dell'elemento protesico.
ILLUSTRAZIONE DEI DISEGNI
Queste ed altre caratteristiche del presente trovato saranno chiare dalla seguente descrizione di alcune forme preferenziali di realizzazione, fornita a titolo esemplificativo, non limitativo, con riferimento agli annessi disegni in cui:
- la fig. 1 è una vista frontale di un elemento protesico secondo il presente trovato; - la fig. 2 è una vista assonometrica dell'elemento protesico di fig.l;
- la fig. 3 è una vista assonometrica di una variante dell'elemento protesico secondo il presente trovato;
- la fig. 4 è un dettaglio ingrandito di un reticolo con un modello di maglie geometriche.
DESCRIZIONE DI UNA FORMA PREFERENZIALE DI
REALIZZAZIONE
Con riferimento alla fig. 1, un elemento protesico secondo il presente trovato è indicato nel suo complesso con il numero di riferimento 10, ed è impiegabile per operazioni di impianto osseo della cavità acetabolare dell'anca del bacino.
Anche se nella descrizione che segue si farà riferimento all'esempio relativo ad una coppa sferoidale acetabolare, resta inteso che il trovato è applicabile anche ad altri elementi protesici quali riempitivi ossei, inserti, gusci, ecc.
L'elemento protesico 10 comprende (figg. 1 e 2) una calotta 11 sferoidale in metallo, avente uno strato di base 16. La calotta 11 è internamente cava ed è destinata ad accogliere una testa protesica o un inserto per coppa acetabolare, nella quale a sua volta viene inserita la testa di una protesi femorale.
Secondo una variante dell'elemento protesico, non rappresentata nei disegni allegati, la calotta 11 presenta una forma tronco conica con uno strato di base 16.
La calotta 11 ha una struttura cellulare caratterizzata da un reticolo 12 tridimensionale di spessore predefinito e voluto. Tale reticolo 12 realizza una pluralità di cavità 18 aperte ed intercomunicanti, collegate sia verso l'interno sia verso l'esterno della calotta 11. Tale reticolo 12, inoltre, si estende su tutta o parte del corpo dell'elemento protesico 10, secondo necessità.
Il materiale metallico utilizzato per la realizzazione dell'elemento protesico 10 è costituito da una lega di titanio.
Secondo una soluzione preferenziale la lega di titanio è quella denominata TÌ6A14V, in virtù delle proprietà di biocompatibilità.
Secondo una variante il materiale metallico è a base di una lega di cobalto.
Secondo una forma di realizzazione del presente trovato, l'elemento protesico 10 comprende elementi di vincolo 14 predisposti al fissaggio, mediante perni o viti, nell'ala iliaca. Con riferimento alla fig. 3 tali elementi di vincolo 14 sono costituiti da una serie di alette metalliche che sporgono dal bordo inferiore della calotta sferoidale 11, in direzione radiale verso l'esterno. Tali alette metalliche sono vantaggiosamente provviste di uno o più fori di vincolo 15 predisposti all'inserimento di un perno o di una vite di fissaggio, non rappresentata nei disegni, dell'elemento protesico 10.
Il suddetto reticolo 12 è caratterizzato da una ripetizione spaziale, per uno spessore predefinito, di una pluralità di maglie geometriche 13 a forma poligonale i cui vertici non sono complanari. Tale conformazione definisce nella struttura del corpo dell'elemento protesico 10 la pluralità di cavità 18
In particolare nella fig. 4, che illustra un modello esemplificativo, sono rappresentate due maglie 13, rispettivamente una a tratto continuo, di vertici 13a, 13b, 13c, 13d, 13e, 13f, 13g, 13h, 13i e 13m, ed una tratteggiata, accostate tra di loro.
Secondo una soluzione preferenziale ciascuna delle suddette maglie geometriche 13 ha una geometria cellulare a celle elementari 13 aperte e contigue di forma poligonale con vertici non complanari .
Le sezioni delle celle elementari 13 contigue hanno una superficie piana con area pari all'area di un cerchio con diametro equivalente compreso in un intervallo che va da circa 0,3mm a circa 1,5 mm. Un valore di tale diametro equivalente che fornisce dimensioni ottimali della struttura periferica cellulare è nell'intorno di circa 0,6mm. Tale diametro ottimale determina una superficie piana minimizzata che garantisce sia la ricrescita ossea e l'ancoraggio della protesi, sia un ingombro ottimizzato del reticolo 12, alla luce dei vincoli dimensionali e di progetto imposti dalle dimensioni delle ossa del paziente, in particolare dell'anca. Pertanto, sia la conformazione cellulare dell'elemento protesico 10 e del reticolo 12, sia la dimensione e forma delle cavità 18 conferiscono alla struttura superficiale dell'elemento protesico 10 una peculiare proprietà di porosità. Tale porosità favorisce, a seguito dell'operazione di impianto, sia l'ancoraggio, sia la ricrescita del tessuto osseo che si trova a diretto contatto con l'elemento protesico 10, incrementando e velocizzando il processo di osteointegrazione.
Secondo il presente trovato, il procedimento di realizzazione comprende una prima fase in cui, mediante programmi di modellazione tridimensionale per elaboratori elettronici, viene generato un modello dell'elemento protesico 10. Sempre utilizzando tali programmi di modellazione, il suddetto modello viene suddiviso secondo una molteplicità di sezioni piane di spessore limitato e determinato. Tali sezioni piane definiscono la sequenza di porzioni piane destinate ad essere depositate in sequenza mediante polveri di materiale metallico.
In una seconda fase, mediante tecnica di fusione a fascio di elettroni, nota come EBM (Electron Beam Melting), viene realizzato l'elemento protesico 10. In una soluzione preferenziale è prevista la fusione, in condizioni di vuoto spinto, attraverso un apparato predisposto alla fusione EBM, di un bagno di polveri, di granulometria desiderata, di materiale metallico mediante un fascio di elettroni ad elevata velocità, dell'ordine della metà della velocità della luce. Le polveri di materiale metallico nella granulometria voluta vengono depositate secondo strati successivi nel luogo voluto e nella sequenza voluta e definita nella fase di modellazione, e portate a fusione per formare l'elemento protesico 10 secondo il presente trovato, in particolare la calotta 11, comprensiva di strato di base 16 e di reticolo 12.
In tale seconda fase il suddetto reticolo 12 viene definito nella sua periferia secondo una struttura cellulare aperta e voluta, in modo tale da realizzare l'elemento protesico 10 con una pluralità di vani equivalenti a cilindri con diametro compreso nell'intervallo che va da circa 0,3mm a circa l,5mm. Un valore preferenziale del diametro è nell'intorno di circa 0,6mm.
La tecnica EBM utilizzata in tale seconda fase di realizzazione può essere sostituita da una tecnica equivalente, come ad esempio la tecnica nota come DMSLS (Direct Metal Selective Laser Sintering), in cui la fusione del bagno di polveri avviene mediante un raggio laser ad elevata potenza.
Le polveri metalliche utilizzate in tale seconda fase realizzativa sono preferenzialmente a base di Titanio o in una sua lega, come ad esempio la lega con sigla TÌ6A14V, oppure a base di una lega di cobalto .
È chiaro che all * elemento protesico con struttura cellulare ed al procedimento per realizzare un elemento protesico con struttura cellulare secondo il presente trovato possono essere apportate modifiche e/o aggiunte di parti e/o fasi, senza per questo uscire dall'ambito del presente trovato.
Ad esempio lo strato di base 16 è realizzato in materiale compatto o secondo una struttura a celle ristrette .
In un'altra forma di realizzazione, i fori 15 su tale calotta 11 comprendono una corona a materiale compatto, o a celle ristrette.
E anche chiaro che, sebbene il trovato sia stato descritto con riferimento ad esempi specifici, una persona esperta del ramo potrà senz'altro realizzare molte altre forme equivalenti di elemento protesico con struttura cellulare e procedimento per realizzare un elemento protesico con struttura cellulare, tutte rientranti nell'oggetto del presente trovato.
Claims (25)
- RIVENDICAZIONI 1. Elemento protesico comprendente una calotta (11) in materiale metallico, caratterizzato dal fatto che almeno parte di detta calotta (11) è costituita da un reticolo (12) tridimensionale realizzante una pluralità di cavità (18) aperte e intercomunicanti collegate sia verso l'interno, sia verso l'esterno di detta calotta (11).
- 2. Elemento protesico come alla rivendicazione 1, caratterizzato dal fatto che almeno parte di detto reticolo (12) viene definito mediante ripetizione spaziale di uno o più modelli, su tutto o parte del corpo di detto elemento protesico, di una pluralità di maglie geometriche (13).
- 3. Elemento protesico come alla rivendicazione 2, caratterizzato dal fatto che ciascuna di dette maglie geometriche ha una geometria cellulare a celle elementari (13) aperte e contigue di forma poligonale con vertici non complanari.
- 4. Elemento protesico come alla rivendicazione 3, caratterizzato dal fatto che l'area libera aperta di ciascuna cella elementare (13) presenta un'equivalenza ad un cerchio con diametro compreso in un intervallo che va da circa 0,3mm a circa l,5mm.
- 5. Elemento protesico come alla rivendicazione 4, caratterizzato dal fatto che detto diametro equivalente è nell'intorno di circa 0,6mm.
- 6. Elemento protesico come ad una qualsiasi delle precedenti rivendicazioni, caratterizzato dal fatto che detto materiale metallico è a base di titanio.
- 7. Elemento protesico come alla rivendicazione 6, caratterizzato dal fatto che detta lega di titanio è la lega con sigla TÌ6A14V.
- 8. Elemento protesico come ad una o l'altra delle rivendicazioni da 1 a 5, caratterizzato dal fatto che detto materiale metallico è composto da una lega di cobalto.
- 9. Elemento protesico come ad una o l'altra delle rivendicazioni precedenti, caratterizzato dal fatto che presenta uno strato di base (16) compatto.
- 10. Elemento protesico come ad una o l'altra delle rivendicazioni da 1 a 8, caratterizzato dal fatto che presenta uno strato di base (16) a celle ristrette.
- 11. Elemento protesico come ad una o l'altra delle rivendicazioni precedenti, caratterizzato dal fatto che detta calotta (11) presenta una pluralità di fori (15) con corona a materiale compatto.
- 12. Elemento protesico come ad una o l'altra delle rivendicazioni precedenti, caratterizzato dal fatto che detta calotta (11) presenta una pluralità di fori (15) con corona cellulare a celle ristrette.
- 13. Elemento protesico come ad una o l'altra delle rivendicazioni da precedenti, caratterizzato dal fatto che detta calotta (11) è a forma sferoidale.
- 14. Elemento protesico come ad una o l'altra delle rivendicazioni precedenti, caratterizzato dal fatto che detta calotta (11) è a forma tronco conica.
- 15. Procedimento per realizzare un elemento protesico comprendente una calotta (11), caratterizzato dal fatto che comprende una fase di realizzazione in cui almeno parte del corpo dell'elemento protesico viene ottenuto con realizzazione di una pluralità di strati successivi coordinati in rapporto ad una predeterminata figura finale, in cui almeno parte di detta pluralità di strati è discontinua per determinare complessivamente un reticolo (12) a celle aperte.
- 16. Procedimento come alla rivendicazione 15, caratterizzato dal fatto che detta realizzazione di strati successivi viene ottenuta con tecnica EBM (Electron Beam Melting).
- 17. Procedimento come alla rivendicazione 15, caratterizzato dal fatto che detta realizzazione di strati successivi viene ottenuta con tecnica DMSLS (Direct Metal Selective Laser Sintering).
- 18. Procedimento come ad una o l'altra delle precedenti rivendicazioni da 15 a 17 caratterizzato dal fatto che in detta fase di realizzazione dei singoli strati, detto reticolo (12) viene definito nella sua periferia secondo una struttura cellulare aperta e voluta.
- 19. Procedimento come alla rivendicazione 18, caratterizzato dal fatto che in detta fase di realizzazione, detta figura finale ottenuta presenta vani almeno equivalenti a cilindri con diametro compreso in un intervallo che va da circa 0,3mm a circa l,5mm.
- 20. Procedimento come alla rivendicazione 19, caratterizzato dal fatto che detto diametro è nell'intorno di circa 0,6mm.
- 21. Procedimento come ad una o l'altra delle precedenti rivendicazioni da 15 a 20, caratterizzato dal fatto che vengono utilizzate polveri metalliche di granulometria voluta, dette polveri venendo fissate nel luogo voluto e nella sequenza voluta, strato per strato a creare il voluto reticolo (12).
- 22. Procedimento come alla rivendicazione 21, caratterizzato dal fatto che la polvere utilizzata è a base di titanio.
- 23. Procedimento come alla rivendicazione 22 caratterizzato dal fatto che la polvere utilizzata è una lega di titanio con sigla TÌ6A14V.
- 24. Procedimento come alla rivendicazione 21 caratterizzato dal fatto che la polvere utilizzata è una lega di cobalto.
- 25. Elemento protesico e relativo procedimento di realizzazione, sostanzialmente come descritti, con riferimento agli annessi disegni,
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000092A ITUD20070092A1 (it) | 2007-05-29 | 2007-05-29 | Elemento protesico e relativo procedimento di realizzazione |
ES17185215T ES2728061T3 (es) | 2007-05-29 | 2008-05-29 | Elemento protésico y método relativo de fabricación |
EP19153837.0A EP3495003A1 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
EP17185215.5A EP3263143B1 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
PCT/IB2008/001354 WO2008146141A2 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
US12/601,510 US8454705B2 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
ES08762734.5T ES2646268T3 (es) | 2007-05-29 | 2008-05-29 | Elemento protésico y su procedimiento de fabricación |
JP2010509909A JP5529727B2 (ja) | 2007-05-29 | 2008-05-29 | 補綴エレメント及びこれに係る製造方法 |
EP08762734.5A EP2164428B1 (en) | 2007-05-29 | 2008-05-29 | Prosthetic element and relative method to make it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000092A ITUD20070092A1 (it) | 2007-05-29 | 2007-05-29 | Elemento protesico e relativo procedimento di realizzazione |
Publications (1)
Publication Number | Publication Date |
---|---|
ITUD20070092A1 true ITUD20070092A1 (it) | 2008-11-30 |
Family
ID=38753574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT000092A ITUD20070092A1 (it) | 2007-05-29 | 2007-05-29 | Elemento protesico e relativo procedimento di realizzazione |
Country Status (6)
Country | Link |
---|---|
US (1) | US8454705B2 (it) |
EP (3) | EP3263143B1 (it) |
JP (1) | JP5529727B2 (it) |
ES (2) | ES2728061T3 (it) |
IT (1) | ITUD20070092A1 (it) |
WO (1) | WO2008146141A2 (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3263143B1 (en) | 2007-05-29 | 2019-03-20 | Limacorporate SPA | Prosthetic element and relative method to make it |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7537664B2 (en) | 2002-11-08 | 2009-05-26 | Howmedica Osteonics Corp. | Laser-produced porous surface |
EP4353479A2 (en) | 2009-08-19 | 2024-04-17 | Smith & Nephew, Inc. | Porous implant structures |
EP2345390A1 (en) * | 2010-01-14 | 2011-07-20 | Socinser 21, S.A. | Procedure for the manufacture and implant of sponge material of governable density |
CN103037812A (zh) | 2010-06-08 | 2013-04-10 | 史密夫和内修有限公司 | 植入物部件和方法 |
FR2971144A1 (fr) | 2011-02-08 | 2012-08-10 | Tornier Sa | Implant glenoidien pour prothese d'epaule et kit chirurgical |
EP3501458B1 (en) | 2011-12-23 | 2020-09-23 | The Royal Institution for the Advancement of Learning/McGill University | Bone replacement implants with mechanically biocompatible cellular material |
US9364896B2 (en) * | 2012-02-07 | 2016-06-14 | Medical Modeling Inc. | Fabrication of hybrid solid-porous medical implantable devices with electron beam melting technology |
US20130216740A1 (en) | 2012-02-16 | 2013-08-22 | Apple Inc. | Interlocking flexible segments formed from a rigid material |
US9180010B2 (en) | 2012-04-06 | 2015-11-10 | Howmedica Osteonics Corp. | Surface modified unit cell lattice structures for optimized secure freeform fabrication |
US9135374B2 (en) | 2012-04-06 | 2015-09-15 | Howmedica Osteonics Corp. | Surface modified unit cell lattice structures for optimized secure freeform fabrication |
ITUD20120059A1 (it) | 2012-04-06 | 2013-10-07 | Limacorporate Spa | Elemento protesico per estremita' ossee quali dita o denti e relativo procedimento di realizzazione |
US9132510B2 (en) | 2012-05-02 | 2015-09-15 | Apple Inc. | Multi-step pattern formation |
US8843229B2 (en) * | 2012-07-20 | 2014-09-23 | Biomet Manufacturing, Llc | Metallic structures having porous regions from imaged bone at pre-defined anatomic locations |
US20160317322A1 (en) * | 2012-10-12 | 2016-11-03 | Warsaw Orthopedic, Inc | Implant and methods for producing an implant |
US10086484B2 (en) | 2012-10-12 | 2018-10-02 | Apple Inc. | Manufacturing of computing devices |
ITUD20120179A1 (it) * | 2012-10-24 | 2014-04-25 | Limacorporate Spa | Protesi acetabolare e relativo procedimento di fabbricazione e di assemblaggio |
US9949837B2 (en) | 2013-03-07 | 2018-04-24 | Howmedica Osteonics Corp. | Partially porous bone implant keel |
US9610164B2 (en) * | 2014-02-03 | 2017-04-04 | Biomet Manufacturing, Llc | Stiffening structure in a prosthetic member |
DK3685866T3 (da) | 2014-05-02 | 2023-11-06 | The Royal Institution For The Advancement Of Learning / Mcgill Univ | Strukturelt porøst biomateriale og implantat dannet af samme |
JP6464470B2 (ja) * | 2014-05-07 | 2019-02-06 | 帝人ナカシマメディカル株式会社 | インプラント及びその製造方法 |
US9676159B2 (en) * | 2014-05-09 | 2017-06-13 | Nike, Inc. | Method for forming three-dimensional structures with different material portions |
US10111753B2 (en) | 2014-05-23 | 2018-10-30 | Titan Spine, Inc. | Additive and subtractive manufacturing process for producing implants with homogeneous body substantially free of pores and inclusions |
US10071539B2 (en) | 2014-09-30 | 2018-09-11 | Apple Inc. | Co-sintered ceramic for electronic devices |
US10335979B2 (en) | 2014-09-30 | 2019-07-02 | Apple Inc. | Machining features in a ceramic component for use in an electronic device |
EP3050538A1 (de) | 2015-01-27 | 2016-08-03 | AQ Implants GmbH | Pfanne einer Hüftgelenkprothese |
DE202015009345U1 (de) | 2015-01-27 | 2017-04-19 | Aq Implants Gmbh | Pfanne einer Hüftgelenkprothese |
US10070962B1 (en) | 2015-02-13 | 2018-09-11 | Nextstep Arthropedix, LLC | Medical implants having desired surface features and methods of manufacturing |
US10207387B2 (en) | 2015-03-06 | 2019-02-19 | Apple Inc. | Co-finishing surfaces |
TW201632342A (zh) * | 2015-03-13 | 2016-09-16 | 優克材料科技股份有限公司 | 三維列印方法 |
ITMI20150565A1 (it) * | 2015-04-20 | 2016-10-20 | Adler Ortho S R L | Protesi cotiloidea perfezionata per artroprotesi d'anca. |
EP3319554B1 (en) | 2015-07-09 | 2021-04-21 | Waldemar Link GmbH & Co. KG | Porous structure for bone implants |
FR3039440B1 (fr) * | 2015-07-30 | 2017-08-11 | Soc D'etudes De Rech Et De Fabrication (Serf) | Procede de fabrication d’une cupule |
US10216233B2 (en) | 2015-09-02 | 2019-02-26 | Apple Inc. | Forming features in a ceramic component for an electronic device |
US10596660B2 (en) | 2015-12-15 | 2020-03-24 | Howmedica Osteonics Corp. | Porous structures produced by additive layer manufacturing |
WO2017106780A1 (en) | 2015-12-16 | 2017-06-22 | Nuvasive, Inc. | Porous spinal fusion implant |
US10456262B2 (en) | 2016-08-02 | 2019-10-29 | Howmedica Osteonics Corp. | Patient-specific implant flanges with bone side porous ridges |
US11298747B2 (en) | 2017-05-18 | 2022-04-12 | Howmedica Osteonics Corp. | High fatigue strength porous structure |
US11628517B2 (en) | 2017-06-15 | 2023-04-18 | Howmedica Osteonics Corp. | Porous structures produced by additive layer manufacturing |
US10542628B2 (en) | 2017-08-02 | 2020-01-21 | Apple Inc. | Enclosure for an electronic device having a shell and internal chassis |
CA3079099A1 (en) | 2017-10-16 | 2019-04-25 | Imascap Sas | Shoulder implants |
AU2018256556B2 (en) | 2017-11-03 | 2024-04-04 | Howmedica Osteonics Corp. | Flexible construct for femoral reconstruction |
US11351732B2 (en) | 2017-11-20 | 2022-06-07 | Ford Global Technologies, Llc | Integrated digital thread for additive manufacturing design optimization of lightweight structures |
RU184086U1 (ru) * | 2018-02-26 | 2018-10-15 | Федеральное государственное бюджетное учреждение "Российский научный центр "Восстановительная травматология и ортопедия" имени академика Г.А. Илизарова" Министерства здравоохранения Российской Федерации (ФГБУ "РНЦ "ВТО" им. акад. Г.А. Илизарова" Минздрава России) | Модуль имплантата для замещения внутрикостных дефектов |
AU2019244702A1 (en) * | 2018-03-26 | 2020-09-17 | DePuy Synthes Products, Inc. | Three-dimensional porous structures for bone ingrowth and methods for producing |
JP2022543696A (ja) | 2019-08-09 | 2022-10-13 | ハウメディカ オステオニクス コーポレイション | 関節窩プロテーゼを移植するための装置及び方法 |
IT202100009176A1 (it) * | 2021-04-13 | 2022-10-13 | Adler Ortho S P A | Cotile a flessibilità differenziata. |
EP4351485A1 (en) * | 2021-08-12 | 2024-04-17 | Howmedica Osteonics Corp. | Fenestrated bearing glenoid component |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7907231A (nl) | 1979-09-28 | 1981-03-31 | Leuven Res & Dev Vzw | Samengesteld materiaal voor protheses. |
CH665348A5 (de) * | 1985-01-09 | 1988-05-13 | Sulzer Ag | Implantate. |
CH666608A5 (de) * | 1985-07-15 | 1988-08-15 | Sulzer Ag | Zementfrei im becken zu verankernde hueftgelenkspfanne. |
US4715860A (en) * | 1985-08-23 | 1987-12-29 | The Regents Of The University Of California | Porous acetabular hip resurfacing |
US4636219A (en) * | 1985-12-05 | 1987-01-13 | Techmedica, Inc. | Prosthesis device fabrication |
US4944817A (en) * | 1986-10-17 | 1990-07-31 | Board Of Regents, The University Of Texas System | Multiple material systems for selective beam sintering |
DE59001485D1 (de) * | 1989-09-28 | 1993-06-24 | Sulzer Ag | Zementfrei im becken zu verankernde hueftgelenkspfanne. |
DE9011363U1 (it) * | 1989-09-28 | 1990-11-15 | Pfizer Hospital Products Group, Inc., New York, N.Y., Us | |
DE59108588D1 (de) * | 1991-08-07 | 1997-04-10 | Oscobal Ag | Endoprothese mit einem Metalldrahtwerk |
FR2685192B1 (fr) | 1991-12-24 | 1994-01-28 | Osteal Medical Laboratoires | Cotyle metallique pour prothese d'articulation coxo-femorale. |
US5443510A (en) | 1993-04-06 | 1995-08-22 | Zimmer, Inc. | Porous coated implant and method of making same |
DE69426414T2 (de) * | 1993-09-24 | 2001-05-03 | Takiron Co | Implantatmaterial |
DE19614949A1 (de) * | 1996-04-16 | 1997-10-23 | Horst Broziat | Knochenimplantat |
US6146425A (en) * | 1996-04-22 | 2000-11-14 | Hoermansdoerfer; Gerd | Hip joint glenoid cavity with a special thread |
US6066176A (en) * | 1996-07-11 | 2000-05-23 | Oshida; Yoshiki | Orthopedic implant system |
JP2002516711A (ja) * | 1998-06-03 | 2002-06-11 | マシーズ メディツィナルテヒニク アクチエンゲゼルシャフト | 金属網付きプラスチック製インプラント |
DE19904436A1 (de) * | 1999-02-04 | 2000-08-10 | Ceramtec Ag | Hüftgelenkpfanne mit Kopplungselement zwischen Pfannengehäuse und Pfanneneinsatz |
US6206924B1 (en) | 1999-10-20 | 2001-03-27 | Interpore Cross Internat | Three-dimensional geometric bio-compatible porous engineered structure for use as a bone mass replacement or fusion augmentation device |
US20060147332A1 (en) | 2004-12-30 | 2006-07-06 | Howmedica Osteonics Corp. | Laser-produced porous structure |
US7537664B2 (en) * | 2002-11-08 | 2009-05-26 | Howmedica Osteonics Corp. | Laser-produced porous surface |
WO2004074555A1 (ja) | 2003-02-21 | 2004-09-02 | Mitsubishi Materials Corporation | 電解Niめっき用Ni合金陽極材 |
FI120333B (fi) | 2003-08-20 | 2009-09-30 | Bioretec Oy | Huokoinen lääketieteellinen väline ja menetelmä sen valmistamiseksi |
US8292967B2 (en) | 2005-04-21 | 2012-10-23 | Biomet Manufacturing Corp. | Method and apparatus for use of porous implants |
CH698608B1 (it) * | 2005-05-02 | 2009-09-15 | Mariasal Invest Nv | Elemento di protesi con recessi ricavati sotto la superficie esterna. |
EP1779812A1 (en) | 2005-10-26 | 2007-05-02 | Etervind AB | An osseointegration implant |
US8728387B2 (en) | 2005-12-06 | 2014-05-20 | Howmedica Osteonics Corp. | Laser-produced porous surface |
US7578851B2 (en) | 2005-12-23 | 2009-08-25 | Howmedica Osteonics Corp. | Gradient porous implant |
DE602006010403D1 (de) | 2006-03-31 | 2009-12-24 | Sintea Biotech S P A | Endoprothese für orthopädische anwendungen |
DE102006047663A1 (de) | 2006-09-29 | 2008-04-03 | Aesculap Ag & Co. Kg | Augmentationskomponente für Knochenimplantate |
ITUD20070092A1 (it) | 2007-05-29 | 2008-11-30 | Lima Lto S P A | Elemento protesico e relativo procedimento di realizzazione |
-
2007
- 2007-05-29 IT IT000092A patent/ITUD20070092A1/it unknown
-
2008
- 2008-05-29 EP EP17185215.5A patent/EP3263143B1/en active Active
- 2008-05-29 US US12/601,510 patent/US8454705B2/en active Active
- 2008-05-29 JP JP2010509909A patent/JP5529727B2/ja active Active
- 2008-05-29 EP EP19153837.0A patent/EP3495003A1/en active Pending
- 2008-05-29 EP EP08762734.5A patent/EP2164428B1/en active Active
- 2008-05-29 ES ES17185215T patent/ES2728061T3/es active Active
- 2008-05-29 WO PCT/IB2008/001354 patent/WO2008146141A2/en active Application Filing
- 2008-05-29 ES ES08762734.5T patent/ES2646268T3/es active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3263143B1 (en) | 2007-05-29 | 2019-03-20 | Limacorporate SPA | Prosthetic element and relative method to make it |
Also Published As
Publication number | Publication date |
---|---|
ES2646268T3 (es) | 2017-12-13 |
ES2728061T3 (es) | 2019-10-22 |
WO2008146141A2 (en) | 2008-12-04 |
US20100191345A1 (en) | 2010-07-29 |
JP2010527725A (ja) | 2010-08-19 |
EP3495003A1 (en) | 2019-06-12 |
WO2008146141A3 (en) | 2009-05-22 |
US8454705B2 (en) | 2013-06-04 |
EP3263143A1 (en) | 2018-01-03 |
EP2164428A2 (en) | 2010-03-24 |
EP2164428B1 (en) | 2017-08-09 |
JP5529727B2 (ja) | 2014-06-25 |
EP3263143B1 (en) | 2019-03-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ITUD20070092A1 (it) | Elemento protesico e relativo procedimento di realizzazione | |
US11529235B2 (en) | Porous implant structures | |
US20220117742A1 (en) | Three-dimensional porous structures for bone ingrowth and methods for producing | |
US6913623B1 (en) | Two piecefused femoral hip stem | |
US7918382B2 (en) | Method for attaching a porous metal layer to a metal substrate | |
ITUD20100037A1 (it) | Elemento protesico integrato | |
US6193761B1 (en) | Implantable prosthesis with metallic porous bead preforms applied during casting | |
JP5205462B2 (ja) | セメントレス脛骨トレイ | |
EP1398045B1 (en) | A method for attaching a porous metal layer to a metal substrate | |
US20100174377A1 (en) | Reticulated particle porous coating for medical implant use | |
JP2013520268A5 (it) | ||
JP2012507359A (ja) | 増大した表面粗さを有する多孔質表面層およびそれを組み込むインプラント | |
IE903473A1 (en) | Cast bone ingrowth surface | |
JPH05508561A (ja) | 人工インプラント | |
US11278412B2 (en) | Hybrid fixation features for three-dimensional porous structures for bone ingrowth and methods for producing | |
US20190290402A1 (en) | Dental implant and self-locking fastening element with heterogeneousporous structures, and method for its production | |
CN101524295A (zh) | 一种人工髋关节髋臼外衬 | |
WO2010139031A2 (en) | Supporting structure for a prosthesis | |
BE1020334A3 (nl) | Botprothese voor een botdefect. | |
RU2157245C1 (ru) | Способ изготовления имплантатов | |
CN201164512Y (zh) | 一种人工髋关节髋臼外衬 | |
IT201800006531A1 (it) | Metodo per la realizzazione di un componente protesico e componente protesico cosi' realizzato | |
BE1020326A3 (nl) | Botprothese voor een botdefect. |