EP0891168A1 - Piece de prothese a tige, et necessaire a utiliser avec cette piece - Google Patents
Piece de prothese a tige, et necessaire a utiliser avec cette pieceInfo
- Publication number
- EP0891168A1 EP0891168A1 EP97918096A EP97918096A EP0891168A1 EP 0891168 A1 EP0891168 A1 EP 0891168A1 EP 97918096 A EP97918096 A EP 97918096A EP 97918096 A EP97918096 A EP 97918096A EP 0891168 A1 EP0891168 A1 EP 0891168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- cement
- prosthesis part
- prosthesis
- part according
- 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.)
- Withdrawn
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- 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
- A61F2/30721—Accessories
- A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
- A61B17/7098—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants wherein the implant is permeable or has openings, e.g. fenestrated screw
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8808—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it with sealing collar for bone cavity
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8822—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8827—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it with filtering, degassing, venting or pressure relief means
-
- 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
- A61F2/30721—Accessories
- A61F2/30723—Plugs or restrictors for sealing a cement-receiving space
-
- 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
- A61F2/30721—Accessories
- A61F2/30739—Devices connected to the proximal part of an endoprosthetic femoral shaft for reinforcing or replacing the trochanters, e.g. the greater trochanter
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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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal 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
- 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
- A61F2002/30041—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 hardening time
-
- 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
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
-
- 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
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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
- A61F2002/30108—Shapes
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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
- A61F2002/30108—Shapes
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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
- A61F2002/30108—Shapes
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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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
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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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
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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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
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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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- A61F2/00—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
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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
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
-
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- 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
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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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- A61F2002/3625—Necks
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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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- A61F2/00—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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- A61F2/00—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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- A61F2/00—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
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-
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
-
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4685—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor by means of vacuum
-
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- 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
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
-
- A—HUMAN NECESSITIES
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- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
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- 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
-
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- 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
- A61F2230/0067—Three-dimensional shapes conical
-
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- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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-
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- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0084—Means for distinguishing between left-sided and right-sided devices; Sets comprising both left-sided and right-sided prosthetic parts
-
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- 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
-
- A—HUMAN NECESSITIES
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
Definitions
- the invention relates to a red tooth part according to the preamble of claim 1, and to a material kit that can be used when cementing such a.
- Shaft prostheses with such prosthesis parts are used in particular in the case of artificial hip joints to replace the
- a recess is created in the bone to be provided with the prosthesis, which is slightly larger than the shaft section of the prosthesis.
- the recess created in the bone is then filled with a biocompatible cement, and when the shaft section is inserted into the recess, the liquid cement is increasingly displaced and the cement level rises in the bone recess towards its open end. If more viscous cement is used, it can also be applied to the outer surface of the shaft section and introduced into the bone recess together with the shaft section.
- a low-viscosity cement has the advantage that it can better adapt to the microstructure of the surface of the bone recess, which is advantageous in terms of firm, reliable anchoring of the prosthesis to the bone.
- liquid cements are difficult to insert in situ in the bone recess, since the bone is generally essentially horizontal when the patient is lying down.
- the present invention is therefore intended to provide a stem prosthesis according to the preamble of claim 1.
- CONFIRMATION COPY be formed that the space obtained after insertion of the prosthesis between the outer surface of the shaft section and the inner surface of the bone recess can be reliably forcibly filled with liquid cement.
- the shaft prosthesis in addition to the shaft section and the pin section, there is a plate section which covers the open end of the bone which is to be provided with the prosthesis.
- a bore is provided in the shaft section itself, through which cement can be guided into the vicinity of the deepest point of the bone recess.
- the space to be filled with cement can be vented or connected to a vacuum source via the further bore provided in the plate section. In this way, the liquid cement can completely fill the above-mentioned space without trapping air bubbles.
- the cross-sectional shape of the stem portion ensures that even with a snug fit of the stem portion into the essentially oval or round cross-sectional end portion of the bone, larger local areas of the space to be filled with cement remain, over which the cement then enters of the bone recess in the longitudinal direction.
- a stem prosthesis according to claim 3 is well adapted to the rough course of the volume of a femur filled with cancellous bone.
- the plate section covers the corticalis of the bone to be provided with the prosthesis at the free opening obtained by resection.
- a larger part of the greater trochander can remain on the bone in a hip joint prosthesis.
- the distribution of the cement released through the first bore takes place in a substantially uniform manner (with respect to the axis of the stem portion) in the circumferential direction.
- the development of the invention according to claim 8 is also advantageous with regard to the high mechanical strength of the lower part of the shaft section.
- the development of the invention according to claim 9 it is achieved that the lower end of the shaft section is automatically centered when inserted into the bone recess. In this way it is ensured that the intermediate space to be filled with cement has essentially the same thickness in the circumferential direction, so that the cement flows uniformly into the various partial areas of the intermediate space.
- a prosthesis according to claim 11 can optionally be used with or without a centering part. Centering parts with different basic dimensions can also be easily put on according to the respective needs.
- FIG. 1 shows a longitudinal section through the end of a thigh bone on the hip joint side with an inserted stem prosthesis part, shown at a point in time when the cement was only partially filled;
- FIG. 2 a top view of the upper side of the prosthesis part according to FIG. 1;
- FIG. 3 a top view of the underside of the prosthesis part according to FIG. 1; and Figure 4: a similar view as Figure 1, but in which a modified stem prosthesis part is shown.
- the upper end of a thigh bone is shown at 10 in FIG. From this the joint head is sawn off along a line which is initially essentially transverse (horizontal) to the bone axis and which rises towards the greater trochander. The free edge of the corticalis thus obtained is designated by 14.
- a recess 16 has been created in the femur 10 by removing the cancellous bone.
- a prosthetic part 18 cast from a biocompatible metal or a biocompatible alloy is shown in the interior of the bone thus prepared. It comprises a shaft section 20 which, roughly speaking, has the shape of a twisted pyramid frustum having a right-angled cross section, which increasingly becomes a circular cross section towards the small end.
- a plate section 22 is located at the upper end of the shaft section 20.
- the upper bone end is prepared according to its edge contour.
- the plate section 22 has a main section 24 which drops under operating conditions at a small angle of approximately 5-10 to the bone axis and a side section 26 which rises at an angle of approximately 60 obliquely to the greater trochander from a point adjacent to the shaft axis or bone axis.
- the plate section stands 22 so far over the upper end of the shaft section 20 in the radial direction that it closes the edge 14 of the femur 10 created by the bone preparation in a cover-like manner.
- a pin section 28 is formed on the plate section 22 and is inclined inwards and upwards at an angle of approximately 40-70 °, in the normal case of approximately 60 to the plane of the main section 24.
- a through bore 32 is provided in the shaft section 20, which extends from the lower end face of the shaft section 20 through the latter and the plate section 22 and opens out on the upper side of the plate section 22.
- a second through hole 34 is provided in a region on the edge, which leads there from the upper side of the plate section 22 to its underside.
- the through hole 34 is aligned in the direction perpendicular to the drawing plane of FIG. 1 essentially with the base point of the axis of the pin section 28.
- the through hole 34 lies at the highest point of the Intermediate space 36 which lies between the outer surface of the shaft section 20 and the inner surface of the recess 16.
- the upper end of the through bore 32 is connected via a line 38 to a dispenser 40 for this liquid cement, as shown schematically in FIG.
- the second through hole 34 is via a line 42 is connected to a vacuum source, shown as blower 44.
- the lower shaft end is provided with a cylindrical bearing surface 46 provided, on which a centering part 48 is seated.
- the latter has a hub section 50 and a large number of convex spring fingers 52 which are molded onto the hub section 50.
- the centering part 48 can be a part molded from a biocompatible plastic or a part made from a biocompatible
- the centering part 48 can also be formed in one piece with the shaft section 20 and the remaining prosthesis parts and, like the other sections of the prosthesis, can be made from a biocompatible metal or a biocompatible alloy or a biocompatible ceramic material.
- the prosthesis part described above can be fixed as follows in the previously prepared bone end as described above:
- a plug 54 is produced from the resected section of the femur, the diameter of which corresponds essentially to the cross section of the recess 16 at the deepest end. This plug is pressed against the lower end of the recess 16 using a suitable tool. Now the lines 38 and 42 are connected to the holes 32 and 34. A thicker (in practice about 1-2 mm thick) layer of a cement mass is applied to the edge of the underside of the plate section 22, the basic components of which correspond to the bio-compatible cement which is contained in the dispenser 40. However, the cement paste contains fillers or other additives which increase the viscosity, so that the cement paste acquires a pulpy consistency similar to that of a sealant.
- the prosthesis part 18 is now pressed into the recess 16, the lower end of the shaft section 20 being guided and centered by the centering part 48. This axial advancement of the prosthesis part 18 comes to an end when the underside of the plate section 22 reaches the edge 14 of the open bone end.
- the cement mass is partially displaced inwards and outwards, as indicated at 60 and 64, from the joint between the plate section and 22, where the resection line follows the edge contour of the plate section 22 well. At other points where the edge 14 could not be worked exactly on the edge contour of the plate section 22, the cement mass forms a sealing joint, as indicated at 62.
- the cement paste 64 which has leaked outwards over the outer surface of the plate section 22 and the femur 10, is removed with a scraper.
- the intermediate space 36 lying between the inner surface of the recess 16 and the outer surface of the shaft section 20 and the underside of the plate section 22 is tightly closed.
- the intermediate space 36 is now subjected to negative pressure and at the same time the stamp of the dispenser 40 is moved.
- the space 36 increasingly fills with the liquid Cement, the last section of the space filled with cement lying in front of the through hole 34, so that the space 36 as a whole is filled completely and without bubbles.
- the surgeon can make even smaller positional corrections on the prosthesis part 18.
- the sealing joint 62 also hardens.
- the plug 54 when filling the intermediate space 36 with liquid cement, prevented a larger closed cement volume from accumulating below the prosthesis part 18.
- the latter would be disadvantageous with regard to any necessary removal of the prosthesis part and its replacement by another prosthesis part.
- the prosthesis part shown in the drawing is intended for use with a joint prosthesis for the right hip. It goes without saying that a prosthesis part for the left hip has a shape which is substantially symmetrical with the prosthesis part shown, the second through bore 34 in particular lying again at the upper edge of the plate section 22, so that it also overlies it last amounts of air can be withdrawn from the space 36.
- the first through bore 32 is a stepped bore with a diameter decreasing towards the lower end of the shaft section 20. This way the bottom end of the shaft section 20 compared to the embodiment according to FIGS. 1-3 greater wall thickness and thus greater mechanical strength.
- radial branch bores 66 are provided in the wall of the shaft section 20 distributed over its length and open out into the outer surface of the shaft section 20. These second bores 66 are distributed in such a way that they do not cause any significant local weakening of the shaft section 20. This can be ensured, for example, by arranging the branch bores 66 along one or more spiral lines 68.
- the line 38 is preferably a flexible hose which, like the dispenser 40, is a disposable part.
- a truncated cone-shaped coupling piece 70 is provided, by means of which an easily producible and easily releasable connection to the free end of the through bore 32 can be established.
- the coupling piece 70 is frictionally seated in the correspondingly gated end portion 72 of the bore 32.
- it is made of a plastic material to which the cement adheres only poorly.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
L'invention concerne une pièce (18) destinée à une prothèse à cimenter en place, ladite pièce comprenant une partie plaquette (22) qui fait saillie radialement sur une partie tige (20) et porte une partie pivot (28) qui doit être pourvue d'un élément d'articulation (30). Un premier trou traversant (32) s'étend à travers la partie tige (20) jusqu'au côté supérieur de la partie plaquette (22). Un autre trou traversant (34) est ménagé dans le bord de la partie plaquette (22) faisant saillie au-dessus de la partie tige (20). De cette façon, lorsque la pièce de prothèse est cimentée en place, un espace intermédiaire (36) compris entre la cavité (16) pratiquée dans l'os et la partie tige (20) peut être remplie de façon forcée avec le ciment (56), lequel passe par le premier trou traversant (32) tandis que le vide est fait, dans cet espace intermédiaire (36), par le second trou traversant (34).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613081 | 1996-04-02 | ||
DE19613081A DE19613081A1 (de) | 1996-04-02 | 1996-04-02 | Prothesenteil für eine Schaftprothese und Materialkit zur Verwendung mit einem solchen |
PCT/EP1997/001646 WO1997036558A1 (fr) | 1996-04-02 | 1997-04-02 | Piece de prothese a tige, et necessaire a utiliser avec cette piece |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0891168A1 true EP0891168A1 (fr) | 1999-01-20 |
Family
ID=7790210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97918096A Withdrawn EP0891168A1 (fr) | 1996-04-02 | 1997-04-02 | Piece de prothese a tige, et necessaire a utiliser avec cette piece |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0891168A1 (fr) |
DE (1) | DE19613081A1 (fr) |
WO (1) | WO1997036558A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19740689A1 (de) * | 1997-09-16 | 1999-03-18 | Franz Prof Dr Med Copf | Oberschenkelprothese |
DE19740690A1 (de) * | 1997-09-16 | 1999-03-18 | Copf Franz Prof Dr Med | Prothese |
FR2772595B1 (fr) * | 1997-12-22 | 2001-03-23 | Groupe Lepine | Dispositif de centrage pour tige medullaire fixee par ciment |
DE29818742U1 (de) * | 1998-10-21 | 1999-01-07 | Aesculap AG & Co. KG, 78532 Tuttlingen | Endoprothese |
GB2351671B (en) * | 1999-07-02 | 2004-02-25 | Bridgehall Consultants Ltd | Hip prosthesis with femoral component and corresponding cotyloid element with high implantation adaptability |
EP1132062B1 (fr) * | 2000-03-01 | 2004-08-04 | Sulzer Orthopedics Ltd. | Prothèse de tige à fixation par ciment |
DE10037345A1 (de) * | 2000-07-29 | 2002-02-07 | Juergen Buchholz | Chirurgisches Element |
FR2831052B1 (fr) * | 2001-10-24 | 2004-07-30 | Alain Durand | Gamme de tiges femorales fixees par un liquide injecte par leur centre |
EP1316297A1 (fr) * | 2001-12-03 | 2003-06-04 | Sulzer Orthopedics Ltd. | Dispositif de transfer de ciment osseux dans un tissu spongieu |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4357716A (en) * | 1980-07-09 | 1982-11-09 | Brown Byron L | Device and method for cementing a hip prosthesis in a femoral canal |
US5085861A (en) * | 1987-03-12 | 1992-02-04 | The Beth Israel Hospital Association | Bioerodable implant composition comprising crosslinked biodegradable polyesters |
US4880610A (en) * | 1988-04-20 | 1989-11-14 | Norian Corporation | In situ calcium phosphate minerals--method and composition |
DE3912465C1 (fr) * | 1989-04-15 | 1990-11-08 | Orthoplant Endoprothetik Gmbh, 2800 Bremen, De | |
EP0423064B1 (fr) * | 1989-10-12 | 1993-10-20 | SULZER Medizinaltechnik AG | Prothèse de l'articulation de la hanche pourvu de moyens d'ancrage grillagés |
DE4011887A1 (de) * | 1989-11-14 | 1990-10-25 | Jansson Volkmar Dipl Ing Dr Me | Zementierbare endoprothese mit proximalem zentriersitz |
CH680564A5 (fr) * | 1989-12-07 | 1992-09-30 | Experimentelle Chirurgie Schwe | |
EP0434604A1 (fr) * | 1989-12-15 | 1991-06-26 | GebràDer Sulzer Aktiengesellschaft | Tige d'ancrage pour un prothèse fémorale |
FR2674744B1 (fr) * | 1991-04-02 | 1998-11-06 | Fabrication Etu Realisa Implan | Tige femorale de reprise. |
DE4228317A1 (de) * | 1992-08-26 | 1994-03-03 | Eberhard Dr Mayer | Befestigungselement für künstliche Gelenke |
US5314493A (en) * | 1992-09-10 | 1994-05-24 | Mikhail Michael W E | Femoral hip joint prosthesis |
FR2710257A1 (fr) * | 1993-09-24 | 1995-03-31 | Hardy Jean Marie | Tige fémorale pour prothèse de hanche. |
-
1996
- 1996-04-02 DE DE19613081A patent/DE19613081A1/de not_active Withdrawn
-
1997
- 1997-04-02 WO PCT/EP1997/001646 patent/WO1997036558A1/fr not_active Application Discontinuation
- 1997-04-02 EP EP97918096A patent/EP0891168A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO9736558A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19613081A1 (de) | 1997-10-09 |
WO1997036558A1 (fr) | 1997-10-09 |
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