DE19613081A1 - Prosthesis part for a stem prosthesis and material kit for use with such - Google Patents
Prosthesis part for a stem prosthesis and material kit for use with suchInfo
- Publication number
- DE19613081A1 DE19613081A1 DE19613081A DE19613081A DE19613081A1 DE 19613081 A1 DE19613081 A1 DE 19613081A1 DE 19613081 A DE19613081 A DE 19613081A DE 19613081 A DE19613081 A DE 19613081A DE 19613081 A1 DE19613081 A1 DE 19613081A1
- Authority
- DE
- Germany
- Prior art keywords
- section
- prosthesis
- cement
- part according
- prosthesis part
- 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- Withdrawn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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
-
- 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
- A61F2002/30205—Three-dimensional shapes conical
- A61F2002/3021—Three-dimensional shapes conical 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30273—Three-dimensional shapes pyramidal
- A61F2002/30276—Three-dimensional shapes pyramidal frustopyramidal
-
- 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
- A61F2002/30289—Three-dimensional shapes helically-coiled
-
- 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
- A61F2002/30329—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
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
-
- 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
- A61F2002/30329—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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
-
- 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
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30571—Leaf springs
-
- 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
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/30708—Means for distinguishing between left-sided and right-sided devices, Sets comprising both left-sided and right-sided prosthetic 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
- 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
-
- 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
-
- 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
- A61F2002/3079—Stepped or enlarged apertures, e.g. having discrete diameter changes
-
- 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
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- 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
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
- A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
-
- 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
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/365—Connections of heads to necks
-
- 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
- A61F2002/3678—Geometrical features
- A61F2002/368—Geometrical features with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
-
- 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
- A61F2002/3678—Geometrical features
- A61F2002/3694—Geometrical features with longitudinal bores
-
- 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
- A61F2002/3678—Geometrical features
- A61F2002/3698—Geometrical features twisted about the longitudinal axis of the shaft
-
- 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
- A61F2/46—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
-
- 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
- A61F2/46—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—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
- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—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
- 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
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
-
- 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
- A61F2230/0086—Pyramidal, tetrahedral, or wedge-shaped
-
- 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
- A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
-
- 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
- A61F2250/0058—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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
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
Description
Die Erfindung betrifft ein Prothesenteil gemäß dem Ober begriff des Anspruches 1, sowie ein beim Einzementieren einer solchen verwendbares Materialkit.The invention relates to a prosthesis part according to the upper Concept of claim 1, and one when cementing such a usable material kit.
Schaftprothesen mit solchen Prothesenteilen werden insbe sondere bei künstlichen Hüftgelenken zum Ersetzen der Gelenkkugel des Oberschenkelknochens verwendet. Zu ihrer Implantation wird in dem mit der Prothese zu versehenden Knochen eine Ausnehmung erzeugt, die etwas größer ist als der Schaftabschnitt der Prothese. Die im Knochen erzeugte Ausnehmung wird dann mit einem biokompatiblen Zement gefüllt, und beim Einsetzen des Schaftabschnittes in die Ausnehmung wird der flüssige Zement zunehmend ver drängt und der Zementspiegel steigt in der Knochenaus nehmung zu deren offenem Ende hin. Bei Verwendung höher viskosen Zementes kann man diesen auch auf die Außen fläche des Schaftabschnittes aufbringen und zusammen mit dem Schaftabschnitt in die Knochenausnehmung ein führen.Shaft prostheses with such prosthesis parts are in particular especially with artificial hip joints to replace the Joint ball of the femur used. To their Implantation is carried out in the prosthesis Bone creates a recess that is slightly larger than the stem section of the prosthesis. The one created in the bone The recess is then made with a biocompatible cement filled, and when inserting the shaft section in the recess, the liquid cement is increasingly ver urges and the cement level rises in the bone acceptance towards their open end. When using higher Viscous cement can also be used on the outside Apply the surface of the shaft section and together with the shaft section into the bone recess to lead.
Ein dünnflüssiger Zement hat den Vorteil, daß er sich der Mikrostruktur der Oberfläche der Knochenausnehmung besser anpassen kann, was im Hinblick auf eine feste zuverlässige Verankerung der Prothese am Knochen von Vorteil ist. Flüssige Zemente sind aber in die Knochen ausnehmung in situ schlecht einbringbar, da der Knochen beim liegenden Patienten in der Regel im wesentlichen horizontal ausgerichtet ist.A low-viscosity cement has the advantage that it is the microstructure of the surface of the bone recess can better adapt to what is fixed reliable anchoring of the prosthesis to the bone of Advantage is. However, liquid cements are in the bones recess in situ difficult to insert because of the bone in the lying patient, as a rule, essentially is aligned horizontally.
Durch die vorliegende Erfindung soll daher eine Schaft prothese gemäß dem Oberbegriff des Anspruches 1 so wei tergebildet werden, daß der nach Einsetzen der Prothese erhaltene Zwischenraum zwischen Außenfläche des Schaft abschnittes und Innenfläche der Knochenausnehmung zuver lässig zwangsweise mit flüssigem Zement gefüllt werden kann.A shaft is therefore intended by the present invention prosthesis according to the preamble of claim 1 as white be educated that after insertion of the prosthesis obtained space between the outer surface of the shaft section and inner surface of the bone recess can be casually filled with liquid cement can.
Diese Aufgabe ist erfindungsgemäß gelöst durch eine Schaftprothese mit den im Anspruch 1 angegebenen Merk malen.This object is achieved by a Prosthesis with the note specified in claim 1 to paint.
Bei der erfindungsgemäßen Schaftprothese hat man neben dem Schaftabschnitt und dem Zapfenabschnitt einen Plat tenabschnitt, welcher das offene Ende des Knochens, der mit der Prothese versehen werden soll, überdeckt. Im Schaftabschnitt selbst ist eine Bohrung vorgesehen, durch welche Zement bis in die Nachbarschaft der tief sten Stelle der Knochenausnehmung geführt werden kann. Über die im Plattenabschnitt vorgesehene weitere Bohrung ist der mit Zement zu füllende Raum entlüftbar oder mit einer Unterdruckquelle verbindbar. Auf diese Weise kann der flüssige Zement den genannten Zwischenraum vollständig ausfüllen, ohne daß Luftblasen eingeschlossen werden.In the stem prosthesis according to the invention, one has in addition the shaft portion and the pin portion a plat section, which is 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 to the neighborhood of the deep most point of the bone recess can be guided. Via the further hole provided in the plate section the space to be filled with cement can be vented or connectable to a vacuum source. In this way can the liquid cement the space mentioned Fill in completely without trapping air bubbles will.
Vorteilhafte Weiterbildungen der Erfindung sind in Unter ansprüchen angegeben.Advantageous developments of the invention are in Unter claims specified.
Bei einer Schaftprothese gemäß Anspruch 2 ist durch die Querschnittsform des Schaftabschnittes gewährleistet, daß auch bei sattem Einpassen des Schaftabschnittes in den im wesentlichen ovalen oder runden Querschnitt aufweisenden Endabschnitt des Knochens größere lokale Bereiche des mit Zement zu füllenden Zwischenraumes verbleiben, über welche der Zement dann in der Knochen ausnehmung in longitudinaler Richtung fließen kann. In a stem prosthesis according to claim 2 is through ensures the cross-sectional shape of the shaft section, that even with a snug fit of the shaft section in the essentially oval or round cross-section end portion of the bone having larger local Areas of the space to be filled with cement through which the cement then remains in the bone recess can flow in the longitudinal direction.
Eine Schaftprothese gemäß Anspruch 3 ist dem groben Verlauf des mit Spongiosa erfüllten Volumens eines Ober schenkelknochens gut angepaßt.A stem prosthesis according to claim 3 is rough Course of the volume of a waiter filled with cancellous bone thigh bone well adjusted.
Bei einer Schaftprothese gemäß Anspruch 4 ist gewähr leistet, daß der Plattenabschnitt die Corticalis des mit der Prothese zu versehenden Knochens an der durch Pesektion erhaltenen freien Öffnung überdeckt.In a stem prosthesis according to claim 4 is guaranteed makes the plate section the corticalis of the with the prosthesis to be provided on the bone Pesection preserved free opening covered.
Bildet man den Plattenabschnitt der Prothese gemäß An spruch 5 aus, so kann bei einer Hüftgelenksprothese ein größerer Teil des Trochander major am Knochen ver bleiben.If one forms the plate section of the prosthesis according to An saying 5, so with a hip prosthesis a larger part of the greater trochander ver stay.
Bei einer Schaftprothese gemäß Anspruch 6 erfolgt die Verteilung des durch die erste Bohrung abgegebenen Ze mentes in (bezogen auf die Achse des Schaftabschnittes) in Umfangsrichtung im wesentlichen gleichförmiger Art und Weise.In the case of a stem prosthesis according to claim 6, the Distribution of the Ze delivered by the first hole mentes in (related to the axis of the shaft section) essentially uniform in the circumferential direction and way.
Die Weiterbildung der Erfindung gemäß Anspruch 7 gestat tet es, von der tiefsten Stelle der Knochenausnehmung abgelegene Bereiche dieser Ausnehmung schon von Anfang an mit aufzufüllen. Dies vermindert einerseits die Füll zeit, gestattet andererseits, den im unteren Teil des Schaftabschnittes liegenden Bohrungsabschnitt mit etwas kleinerem Durchmesser zu wählen, was im Hinblick auf die mechanische Belastbarkeit des unteren Endes der Prothese von Vorteil ist.The development of the invention according to claim 7 allows it from the deepest part of the bone recess remote areas of this recess right from the start to fill up with. On the one hand, this reduces the filling time, on the other hand, allows the in the lower part of the Bore section with something lying smaller diameter to choose what in terms of the mechanical strength of the lower end of the Prosthesis is beneficial.
Auch die Weiterbildung der Erfindung gemäß Anspruch 8 ist im Hinblick auf hohe mechanische Festigkeit des unteren Teiles des Schaftabschnittes von Vorteil. The development of the invention according to claim 8 is in view of high mechanical strength of the lower part of the shaft section is advantageous.
Mit der Weiterbildung der Erfindung gemäß Anspruch 9 wird erreicht, daß sich das untere Ende des Schaft abschnittes beim Einführen in die Knochenausnehmung automatisch zentriert. Auf diese Weise ist gewährlei stet, daß der mit Zement zu füllende Zwischenraum in Umfangsrichtung im wesentlichen gleiche Dicke hat, so daß der Zement gleichförmig in die verschiedenen Teil bereiche des Zwischenraumes fließt.With the development of the invention according to claim 9 is achieved that the lower end of the shaft section when inserted into the bone recess automatically centered. This way it is guaranteed Continues that the space to be filled with cement in Circumferential direction has substantially the same thickness, so that the cement is uniform in the different part areas of the gap flows.
Dabei ist die Weiterbildung der Erfindung gemäß An spruch 10 im Hinblick auf eine geringe Behinderung der Zementströmung und im Hinblick auf ein gutes Einführen des Schaftabschnittes in die Knochenausnehmung von Vor teil.The development of the invention according to An Proverb 10 with a view to minor disability Cement flow and with a view to good insertion of the shaft section into the bone recess from before part.
Eine Prothese gemäß Anspruch 11 kann wahlweise mit oder ohne Zentrierteil verwendet werden. Auch kann man Zen trierteile mit unterschiedlicher Grundabmessung leicht gemäß den jeweiligen Bedürfnissen aufsetzen.A prosthesis according to claim 11 can optionally with or can be used without centering part. You can also do Zen lightweight parts with different basic dimensions set up according to the respective needs.
Nachstehend wird die Erfindung anhand von Ausführungs beispielen unter Bezugnahme auf die Zeichnung näher erläutert. In dieser zeigen:The invention based on embodiment examples with reference to the drawing explained. In this show:
Fig. 1 einen Längsschnitt durch das hüftgelenkseiti ge Ende eines Oberschenkelknochens mit einem eingesetzten Schaftprothesenteil, gezeigt zu einem Zeitpunkt, in welchem das Einfüllen von Zement erst teilweise erfolgt ist; Fig. 1 shows a longitudinal section through the end of a hip joint ge side of a femur with an inserted stem prosthesis part, shown at a time when the filling of cement has only partially taken place;
Fig. 2 eine Aufsicht auf die Oberseite des Prothesen teils nach Fig. 1; Figure 2 is a plan view of the top of the prosthesis part of FIG. 1.
Fig. 3 eine Aufsicht auf die Unterseite des Prothe senteiles nach Fig. 1; und Fig. 3 is a plan view of the underside of the Prothe senteiles of FIG. 1; and
Fig. 4 eine ähnliche Ansicht wie Fig. 1, in welcher jedoch ein abgewandeltes Schaftprothesenteil gezeigt ist. Fig. 4 is a view similar to Fig. 1, but in which a modified stem prosthesis part is shown.
In Fig. 1 ist bei 10 das obere Ende eines Oberschenkel knochens wiedergegeben. Von diesem ist der Gelenkkopf längs einer zunächst im wesentlichen zur Knochenachse transversalen (horizontalen) Linie abgesägt, die zum Trochander major hin ansteigt. Der so erhaltene freie Rand der Corticalis ist mit 14 bezeichnet.In Fig. 1 the upper end of a thigh bone is shown at 10 . 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 .
Nach dem Absägen des Femurkopfes ist im Oberschenkelkno chen 10 durch Entfernen der Spongiosa eine Ausnehmung 16 erzeugt worden.After sawing off the femoral head, a recess 16 has been created in the thigh bone 10 by removing the cancellous bone.
Im Inneren des so präparierten Knochens ist ein aus einem biokompatiblen Metall oder eine biokompatiblen Legierung gegossenes Prothesenteil 18 gezeigt. Es umfaßt einen Schaft abschnitt 20, der grob gesprochen die Form eines tordierten spitzen rechtwinkligen Querschnitt aufweisenden Pyrami denstumpfes hat, welcher zum kleinen Ende hin zunehmend in kreisförmigen Querschnitt übergeht.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, pointed, rectangular cross-section having a truncated pyramid which increasingly becomes a circular cross-section towards the small end.
Am oberen Ende des Schaftabschnittes 20 liegt ein Platten abschnitt 22. Nach dessen Randkontur ist die Präparie rung des oberen Knochenendes vorgenommen. Der Platten abschnitt 22 hat einen unter Einsatzbedingungen unter einem kleinen Winkel von etwa 5-10° zur Knochenachse hin abfallenden Hauptabschnitt 24 und einen von einer der Schaftachse bzw. Knochenachse benachbarten Stelle unter einem Winkel von etwa 60° schräg zum Trochander major ansteigenden Seitenabschnitt 26.At the upper end of the shaft section 20 is a plate section 22nd After its edge contour, the preparation of the upper end of the bone is made. 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 obliquely to the shaft axis or bone axis at an angle of approximately 60 ° to the greater trochander.
Wie aus Fig. 1 gut ersichtlich, steht der Plattenabschnitt 22 so weit über das obere Ende des Schaftabschnittes 20 in radialer Richtung über, daß er den durch die Knochen präparation geschaffenen Rand 14 des Oberschenkelknochens 10 deckelähnlich verschließt.As can be seen clearly from FIG. 1, the plate section 22 projects so far beyond 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.
An den Plattenabschnitt 22 ist ein Zapfenabschnitt 28 angeformt, der unter einem Winkel von etwa 40-70°, im Normalfalle von etwa 60° zur Ebene des Hauptabschnit tes 24 nach innen und oben geneigt ist.On the plate portion 22 , a pin portion 28 is formed, which is inclined at an angle of about 40-70 °, in the normal case of about 60 ° to the plane of the main section 24 inwards and upwards.
Im Schaftabschnitt 20 ist eine Durchgangsbohrung 32 vorgesehen, welche sich von der untenliegenden Stirnflä che des Schaftabschnittes 20 durch letzteren und den Plattenabschnitt 22 hindurcherstreckt und bei der Ober seite des Plattenabschnittes 22 ausmündet.In the shaft section 20 , a through hole 32 is provided, which extends from the lower end face of the shaft section 20 through the latter and the plate section 22 and opens at the upper side of the plate section 22 .
Im Plattenabschnitt 22 ist in einem randseitigen Bereich eine zweite Durchgangsbohrung 34 vorgesehen, welche dort von der Oberseite des Plattenabschnittes 22 zu dessen Unterseite führt. Die Durchgangsbohrung 34 fluch tet in zur Zeichenebene von Fig. 1 senkrechter Richtung im wesentlichen mit dem Fußpunkt der Achse des Zapfen abschnittes 28. Unter Operationsbedingungen (Patient liegt im wesentlichen in der Zeichenebene von Fig. 1), liegt die Durchgangsbohrung 34 am höchsten Punkt des Zwischenraumes 36, der zwischen der Außenfläche des Schaftabschnittes 20 und der Innenfläche der Ausneh mung 16 liegt.In 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 with the foot point of the axis of the pin section 28th Under operating conditions (patient lies essentially in the plane of the drawing of FIG. 1), 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 .
Um den Zwischenraum 36 unter Operationsbedingungen blasen frei mit einem flüssigen biokompatiblen Zement zu füllen, ist das obere Ende der Durchgangsbohrung 32 über eine Leitung 38 mit einem Dispenser 40 für diesen flüssigen Zement verbunden, wie in Fig. 1 schematisch dargestellt. Die zweite Durchgangsbohrung 34 ist über eine Leitung 42 mit einer Vakuumquelle verbunden, die als Gebläse 44 gezeigt ist.In order to fill the intermediate space 36 freely with a liquid biocompatible cement under operating conditions, the upper end of the through hole 32 is connected via a line 38 to a dispenser 40 for this liquid cement, as shown schematically in FIG. 1. The second through bore 34 is connected via a line 42 to a vacuum source, which is shown as a blower 44 .
Um ein in (bezogen auf die Achse des Schaftabschnittes 20) in Umfangsrichtung gleichförmiges Füllen des Zwischen raumes 36 zu gewährleisten und zugleich das Zentrieren des unteren Endes des Schaftabschnittes 20 in der Ausneh mung 16 sicherzustellen, ist das untere Schaftende mit einer zylindrischen Lagerfläche 46 versehen, auf welcher ein Zentrierteil 48 sitzt. Letzteres hat einen Nabenab schnitt 50 sowie eine Vielzahl konvexer Federfinger 52, die an den Nabenabschnitt 50 angeformt sind.A (relative to the axis of the shank portion 20) in the 16 ensure circumferentially uniform filling of the shank portion 20 mung space 36 to ensure at the same time centering of the lower end in the Ausneh, the lower shaft end is provided with a cylindrical bearing surface 46, on which a centering part 48 sits. The latter has a Nabenab section 50 and a plurality of convex spring fingers 52 which are integrally formed on the hub portion 50 .
Das Zentrierteil 48 kann ein aus biokompatiblem Kunst stoff gespritztes Teil oder ein aus einem biokompatiblen Metall oder einer solchen Legierung gegossenes oder spanend hergestelltes Teil sein. In Abwandlung kann das Zentrier teil 48 auch einstückig mit dem Schaftabschnitt 20 und den restlichen Prothesenteilen ausgebildet sein und ebenso wie die anderen Abschnitte der Prothese aus einem biokom patiblen Metall bzw. einer biokompatiblen Legierung oder einem biokompatiblen Keramikmaterial hergestellt sein.The centering part 48 can be a part injection molded from biocompatible plastic or a part cast or machined from a biocompatible metal or such alloy. In a modification, 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.
Das oben beschriebene Prothesenteil kann wie folgt im zuvor wie oben beschrieben präparierten Knochenende festgelegt werden:The prosthesis part described above can be as follows in the previously prepared bone end as described above be determined:
Aus dem resektierten Abschnitt des Oberschenkelknochens wird ein Pfropfen 54 hergestellt, dessen Durchmesser im wesentlichen dem Querschnitt der Ausnehmung 16 beim tiefsten Ende entspricht. Dieser Pfropfen wird mit einem geeigneten Werkzeug gegen das untere Ende der Ausnehmung 16 gedrückt. A plug 54 is produced from the resected section of the thigh bone, the diameter of which essentially corresponds 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.
Nun werden die Leitungen 38 und 42 an die Bohrungen 32 und 34 angeschlossen. Auf den Rand der Unterseite des Plattenabschnittes 22 wird eine dickere (in der Praxis etwa 1-2 mm dicke) Schicht aus einer Zementmasse aufgebracht, die in ihren Grundbestandteilen dem bio kompatiblen Zement entspricht, welcher im Dispenser 40 enthalten ist. Die Zementmasse enthält aber Füll stoffe oder andere die Viskosität erhöhende Zusätze, so daß die Zementmasse eine breiige dichtmassenähnliche Konsistenz erhält.Now the lines 38 and 42 are connected to the holes 32 and 34 . On the edge of the underside of the plate section 22 , a thicker (in practice about 1-2 mm thick) layer of a cement mass is applied, the basic components of which correspond to the bio-compatible cement contained in the dispenser 40 . However, the cement paste contains fillers or other additives which increase the viscosity, so that the cement paste has a pulpy consistency similar to that of a sealant.
Das Prothesenteil 18 wird nun in die Ausnehmung 16 hinein gedrückt, wobei das untere Ende des Schaftabschnittes 20 durch das Zentrierteil 48 geführt und zentriert wird. Dieses axiale Vorschieben des Prothesenteiles 18 findet sein Ende, wenn die Unterseite des Plattenabschnittes 22 am Rand 14 des offenen Knochenendes anlangt. Dabei wird die Zementmasse teilweise wie bei 60 und 64 angedeutet aus der Fuge zwischen Plattenabschnitt und 22 einwärts bzw. auswärts verdrängt, wo die Resektionslinie der Randkontur des Plattenabschnittes 22 gut folgt. An anderen Stellen, bei denen der Rand 14 nicht exakt auf die Randkontur des Plattenabschnittes 22 gearbeitet werden konnte, bildet die Zementmasse eine Dichtfuge, wie bei 62 angedeutet. Die Zementmasse 64, welche nach außen über die Außenfläche des Plattenabschnittes 22 und des Oberschenkelknochens 10 ausgetreten ist, wird mit einem Schaber entfernt.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.
Nunmehr ist der zwischen der Innenfläche der Ausnehmung 16 und der Außenfläche des Schaftabschnittes 20 sowie der Unterseite des Plattenabschnittes 22 liegende Zwi schenraum 36 dicht verschlossen. Der Zwischenraum 36 wird nun mit Unterdruck beaufschlagt und gleichzeitig wird der Stempel des Dispensers 40 bewegt. Dabei füllt sich der Zwischenraum 36 zunehmend mit dem flüssigen Zement, wobei der letzte mit Zement gefüllte Abschnitt des Zwischenraumes vor der Durchgangsbohrung 34 liegt, so daß der Zwischenraum 36 insgesamt vollständig und blasenfrei aufgefüllt wird.Now between the inner surface of the recess 16 and the outer surface of the shaft portion 20 and the underside of the plate portion 22 inter mediate space 36 is sealed. 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 portion of the space filled with cement lying in front of the through-hole 34 , so that the space 36 is filled completely and without bubbles.
Während des Füllens des Zwischenraumes 36 mit Zement und während des Aushärtens des Zements (typischerweise etwa 5 Minuten) kann der Operateur noch kleinere Lage korrekturen an dem Prothesenteil 18 vornehmen. Nach dem Aushärten des in den Zwischenraum 36 eingegebenen Zementes härtet dann auch die Dichtfuge 62 aus.During the filling of the intermediate space 36 with cement and during the hardening of the cement (typically about 5 minutes), the surgeon can make even smaller adjustments to the prosthesis part 18 . After the cement introduced into the intermediate space 36 has hardened, the sealing joint 62 also hardens.
Der Pfropfen 54 hat beim Füllen des Zwischenraumes 36 mit flüssigem Zement verhindert, daß sich unterhalb des Prothesenteiles 18 ein größeres geschlossenes Ze mentvolumen ansammelt. Letzteres wäre im Hinblick auf ein etwa notwendiges Wiederentfernen des Prothesenteiles und seinen Ersatz durch ein anderes Prothesenteil nach teilig.The plug 54 has prevented the filling of the intermediate space 36 with liquid cement that a larger, closed volume of cement is accumulated beneath 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.
Das in der Zeichnung dargestellte Prothesenteil ist für die Verwendung bei einer Gelenkprothese für die rechte Hüfte bestimmt. Es versteht sich, daß man bei einem Prothesenteil für die linke Hüfte eine zum dar gestellten Prothesenteil im wesentlichen symmetrische Gestalt verwendet, wobei insbesondere die zweite Durch gangsbohrung 34 wieder beim oberen Rand des Plattenab schnittes 22 liegt, so daß über sie auch die letzten Luftmengen aus dem Zwischenraum 36 abgezogen werden können.The prosthesis part shown in the drawing is intended for use with a joint prosthesis for the right hip. It is understood that one uses a prosthesis part for the prosthesis part substantially symmetrical shape in a prosthetic part for the left hip, in particular the second through hole 34 is again at the upper edge of the Plattenab section 22 , so that the last amounts of air from them the space 36 can be deducted.
Bei dem abgewandelten Ausführungsbeispiel nach Fig. 3 ist die erste Durchgangsbohrung 32 eine Stufenbohrung mit zum unteren Ende des Schaftabschnittes 20 abnehmen dem Durchmesser. Auf diese Weise hat das untere Ende des Schaftabschnittes 20 verglichen mit dem Ausführungs beispiel nach Fig. 1-3 größere Wandstärke und damit größere mechanische Belastbarkeit. Um die durch diese Querschnittsverminderung bedingte Erhöhung des Strömungs widerstandes für den flüssigen Zement zu kompensieren, sind in der Wand des Schaftabschnittes 20 über dessen Länge verteilt radiale Zweigbohrungen 66 vorgesehen, welche in die Außenfläche des Schaftabschnittes 20 aus münden. Diese Zweitbohrungen 66 sind so verteilt, daß sie keine ins Gewicht fallende lokale Schwächung des Schaftabschnittes 20 bedingen. Dies läßt sich z. B. da durch gewährleisten, daß die Zweigbohrungen 66 längs einer oder mehrerer Wendellinien 68 angeordnet werden. Vorzugsweise ist die Leitung 38 ein flexibler Schlauch, der ebenso wie der Dispenser 40 ein Wegwerfteil ist.In the modified embodiment according to FIG. 3, the first through bore 32 is a stepped bore with the diameter decreasing towards the lower end of the shaft section 20 . In this way, the lower end of the shaft portion 20 compared to the embodiment example of FIGS . 1-3 larger wall thickness and thus greater mechanical strength. In order to compensate for the increase in flow resistance caused by this reduction in cross-section for the liquid cement, radial branch bores 66 are provided in the wall of the shaft section 20 over its length and open 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 done e.g. B. since by ensuring that the branch holes 66 are arranged along one or more spiral lines 68 . The line 38 is preferably a flexible hose which, like the dispenser 40, is a disposable part.
Am Ende der als Schlauch ausgebildeten Leitung 38 ist ein kegelstumpfförmiges Kupplungsstück 70 vorgesehen, durch welches eine leicht herstellbare und leicht lösbare Verbindung zum freien Ende der Durchgangsbohrung 32 hergestellt werden kann. Das Kupplungsstück 70 sitzt reibschlüssig in dem entsprechend Aufgekelchfen Endab schnitt 72 der Bohrung 32. Um sein Wiederabziehen auch bei Verunreinigung mit Zement zu erleichtern ist es aus einem Kunststoffmaterial hergestellt, auf welchem der Zement nur schlecht haftet.At the end of the line 38 designed as a hose, 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 sits frictionally in the corresponding Aufgekelchfen Endab section 72 of the bore 32nd To make it easier to remove it even if it is contaminated with cement, it is made of a plastic material on which the cement adheres poorly.
Claims (16)
und daß sich durch den Schaftabschnitt (20) und den darüber liegenden Plattenabschnitt (22) eine erste Durch gangsbohrung (32) erstreckt und sich durch den über den Schaftabschnitt (20) überstehenden Bereich des Plat tenabschnittes (22) eine zweite Durchgangsbohrung (34) erstreckt.1. prosthesis part with a shaft portion ( 20 ) which can be inserted into a bone recess ( 16 ) and a pin portion ( 28 ) on which a joint part ( 30 ) can be fastened, characterized in that between the shaft portion ( 20 ) and the pin portion ( 28 ) A plate section ( 22 ) is provided which protrudes on all sides beyond the shaft section ( 20 ) and the plane of which includes an angle of between approximately 40 ° and approximately 70 ° with the axis of the pin section ( 28 );
and that extends through the shaft portion ( 20 ) and the overlying plate portion ( 22 ) a first through bore ( 32 ) and extends through the over the shaft portion ( 20 ) projecting portion of the Plat tenabschnittes ( 22 ) extends a second through hole ( 34 ) .
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613081A DE19613081A1 (en) | 1996-04-02 | 1996-04-02 | Prosthesis part for a stem prosthesis and material kit for use with such |
EP97918096A EP0891168A1 (en) | 1996-04-02 | 1997-04-02 | Shaft prosthesis part and material kit for use therewith |
PCT/EP1997/001646 WO1997036558A1 (en) | 1996-04-02 | 1997-04-02 | Shaft prosthesis part and material kit for use therewith |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613081A DE19613081A1 (en) | 1996-04-02 | 1996-04-02 | Prosthesis part for a stem prosthesis and material kit for use with such |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19613081A1 true DE19613081A1 (en) | 1997-10-09 |
Family
ID=7790210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19613081A Withdrawn DE19613081A1 (en) | 1996-04-02 | 1996-04-02 | Prosthesis part for a stem prosthesis and material kit for use with such |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0891168A1 (en) |
DE (1) | DE19613081A1 (en) |
WO (1) | WO1997036558A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2772595A1 (en) * | 1997-12-22 | 1999-06-25 | Groupe Lepine | Centering device for distal end of medullary shank, especially of hip prosthesis |
EP0908160A3 (en) * | 1997-09-16 | 1999-12-08 | Franz Copf | Prosthesis |
DE19848476C1 (en) * | 1998-10-21 | 2000-08-31 | Aesculap Ag & Co Kg | Endoprosthesis |
FR2795626A1 (en) * | 1999-07-02 | 2001-01-05 | Taloco Invest N V | HIP PROSTHESIS WITH FEMALE COMPONENT AND COTYLOIDAL ELEMENT, WITH LARGE FACILITY OF IMPLANTATION |
EP1132062A1 (en) * | 2000-03-01 | 2001-09-12 | Sulzer Orthopedics Ltd. | Cement affixated shaft prosthesis |
DE10037345A1 (en) * | 2000-07-29 | 2002-02-07 | Juergen Buchholz | Surgical element |
FR2831052A1 (en) * | 2001-10-24 | 2003-04-25 | Alain Durand | Range of femoral rods comprises rod impacted into bone cavity with cement and rod impacted without cement, the cement impacted rod has central cavity for cement injection and its outward flow filling space between rod and bone |
EP1316297A1 (en) * | 2001-12-03 | 2003-06-04 | Sulzer Orthopedics Ltd. | Device for transfering bone cement into a spongiosa |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19740689A1 (en) * | 1997-09-16 | 1999-03-18 | Franz Prof Dr Med Copf | Thigh prothesis |
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 (en) * | 1989-04-15 | 1990-11-08 | Orthoplant Endoprothetik Gmbh, 2800 Bremen, De | |
ATE96004T1 (en) * | 1989-10-12 | 1993-11-15 | Sulzer Ag | HIP PROSTHESES WITH ANCHORING BY GRID SURFACES. |
DE4011887A1 (en) * | 1989-11-14 | 1990-10-25 | Jansson Volkmar Dipl Ing Dr Me | CEMENTABLE ENDOPROTHESIS WITH PROXIMUM CENTER SEAT |
CH680564A5 (en) * | 1989-12-07 | 1992-09-30 | Experimentelle Chirurgie Schwe | |
EP0434604A1 (en) * | 1989-12-15 | 1991-06-26 | GebràDer Sulzer Aktiengesellschaft | Anchored shaft for a femoral prosthesis |
FR2674744B1 (en) * | 1991-04-02 | 1998-11-06 | Fabrication Etu Realisa Implan | FEMALE RECOVERY ROD. |
DE4228317A1 (en) * | 1992-08-26 | 1994-03-03 | Eberhard Dr Mayer | Fastening element for artificial joints - using synthetic resin to press compatible metal foil on to joint |
US5314493A (en) * | 1992-09-10 | 1994-05-24 | Mikhail Michael W E | Femoral hip joint prosthesis |
FR2710257A1 (en) * | 1993-09-24 | 1995-03-31 | Hardy Jean Marie | Femoral shaft for a hip prosthesis |
-
1996
- 1996-04-02 DE DE19613081A patent/DE19613081A1/en not_active Withdrawn
-
1997
- 1997-04-02 WO PCT/EP1997/001646 patent/WO1997036558A1/en not_active Application Discontinuation
- 1997-04-02 EP EP97918096A patent/EP0891168A1/en not_active Withdrawn
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0908160A3 (en) * | 1997-09-16 | 1999-12-08 | Franz Copf | Prosthesis |
FR2772595A1 (en) * | 1997-12-22 | 1999-06-25 | Groupe Lepine | Centering device for distal end of medullary shank, especially of hip prosthesis |
DE19848476C1 (en) * | 1998-10-21 | 2000-08-31 | Aesculap Ag & Co Kg | Endoprosthesis |
EP0995411A3 (en) * | 1998-10-21 | 2001-10-24 | Aesculap AG & Co. KG | Cementable endoprosthesis |
FR2795626A1 (en) * | 1999-07-02 | 2001-01-05 | Taloco Invest N V | HIP PROSTHESIS WITH FEMALE COMPONENT AND COTYLOIDAL ELEMENT, WITH LARGE FACILITY OF IMPLANTATION |
EP1132062A1 (en) * | 2000-03-01 | 2001-09-12 | Sulzer Orthopedics Ltd. | Cement affixated shaft prosthesis |
DE10037345A1 (en) * | 2000-07-29 | 2002-02-07 | Juergen Buchholz | Surgical element |
WO2002009627A1 (en) * | 2000-07-29 | 2002-02-07 | Coripharm Medizinprodukte Gmbh & Co. Kg | Surgical element |
FR2831052A1 (en) * | 2001-10-24 | 2003-04-25 | Alain Durand | Range of femoral rods comprises rod impacted into bone cavity with cement and rod impacted without cement, the cement impacted rod has central cavity for cement injection and its outward flow filling space between rod and bone |
WO2003034954A1 (en) * | 2001-10-24 | 2003-05-01 | Societe De Genie Medical S.G.M. | Set of femoral stems fixed with a liquid injected through their center |
EP1316297A1 (en) * | 2001-12-03 | 2003-06-04 | Sulzer Orthopedics Ltd. | Device for transfering bone cement into a spongiosa |
Also Published As
Publication number | Publication date |
---|---|
WO1997036558A1 (en) | 1997-10-09 |
EP0891168A1 (en) | 1999-01-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3912465C1 (en) | ||
DE3715000C2 (en) | ||
EP0795306B1 (en) | Modular bone prosthesis with cup and pins | |
EP0083708B1 (en) | Acetabular cup to be anchored in the pelvis without cement | |
DE102013213831B4 (en) | Knee spacer for temporary replacement of an artificial knee joint | |
EP0311749A1 (en) | Femoral part of a hip joint endoprosthesis | |
DE2610922A1 (en) | STEM FOR KNEE JOINT ENDOPROSTHESES | |
DE2356464A1 (en) | SIMPLE FEMORAL HEAD DROSTHESIS AND DRILLING DEVICE FOR ITS FIXING | |
EP0428127B1 (en) | Endoprothesis to be inplanted with cement | |
EP1304984B1 (en) | Surgical element | |
DE60118818T2 (en) | Cement sleeve for a cemented artificial joint shaft and artificial joint with the cement sleeve | |
DE102010044571A1 (en) | base graft | |
DE19613081A1 (en) | Prosthesis part for a stem prosthesis and material kit for use with such | |
WO1994007439A1 (en) | Endoprosthesis shaft | |
EP0321389A1 (en) | Implantable prosthesis | |
EP1728489B1 (en) | Hip endoprosthesis with acetabular having sealed bores | |
EP0962199A1 (en) | Shaft prosthesis | |
DE3412224C2 (en) | ||
EP0908160A2 (en) | Prosthesis | |
DE4336819C1 (en) | Femoral endoprosthesis for a hip joint | |
EP1592369A1 (en) | Hip joint prosthesis comprising a shaft to be inserted into the femur | |
DE4428099C2 (en) | Femoral head-shaft endoprosthesis that can be attached with bone cement | |
EP1316297A1 (en) | Device for transfering bone cement into a spongiosa | |
EP0995412A1 (en) | Method for loosening an insert from the shell of an artificial joint cup and artificial joint cup | |
EP0515003A1 (en) | Anchor element for holding a joint component of a hip joint |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |