[go: up one dir, main page]

WO1994024963A1 - Ensemble de tige prothetique - Google Patents

Ensemble de tige prothetique Download PDF

Info

Publication number
WO1994024963A1
WO1994024963A1 PCT/EP1994/001258 EP9401258W WO9424963A1 WO 1994024963 A1 WO1994024963 A1 WO 1994024963A1 EP 9401258 W EP9401258 W EP 9401258W WO 9424963 A1 WO9424963 A1 WO 9424963A1
Authority
WO
WIPO (PCT)
Prior art keywords
cement
prosthesis socket
prosthesis
set according
bone
Prior art date
Application number
PCT/EP1994/001258
Other languages
German (de)
English (en)
Inventor
R. Peter Huhle
Original Assignee
Depuy Orthopädie Gmbh
Medtechcontrol Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Depuy Orthopädie Gmbh, Medtechcontrol Gmbh filed Critical Depuy Orthopädie Gmbh
Priority to AU66472/94A priority Critical patent/AU6647294A/en
Priority to EP94915095A priority patent/EP0683652A1/fr
Publication of WO1994024963A1 publication Critical patent/WO1994024963A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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
    • A61B17/8841—Tools specially adapted to engage a prosthesis
    • 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
    • A61F2/30724—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
    • 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
    • A61F2/30728—Collars; Bone edge protectors
    • 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 for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4614—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of plugs for sealing a cement-receiving space
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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, e.g. 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
    • 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 or setting implements
    • 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
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/062—Measuring instruments not otherwise provided for penetration depth
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30291—Three-dimensional shapes spirally-coiled, i.e. having a 2D 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
    • 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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • 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
    • A61F2002/30726—Centering or guiding rods, e.g. for insertion of 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
    • A61F2/30721—Accessories
    • A61F2/30728—Collars; Bone edge protectors
    • A61F2002/30729—Separate collars
    • 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
    • A61F2002/30795—Blind bores, e.g. of circular cross-section
    • A61F2002/30797—Blind bores, e.g. of circular cross-section internally-threaded
    • 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
    • A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • 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
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • 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 for implanting artificial joints
    • A61F2002/4631—Special tools for implanting artificial joints 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
    • 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
    • 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

Definitions

  • the invention relates to a
  • the length of the cementing rod is at least twice the length of the shaft measured in the longitudinal axis and that the centering rod is detachably attached at one end to a rake lock is attachable. Regardless of whether the shaft is inserted into the bone before or after the bone cement, the surgeon should be able to keep the shaft centered at the distal end centered over its entire length or press it into the bone cement.
  • DE 3304476 A 1 also shows a hip joint prosthesis. This is provided for connection to a hollow bone nail and has a longitudinal recess in the longitudinal direction for the passage of a guide mandrel. When installed, this prosthesis is surrounded at its distal end by the bone nail, while its proximal end extends through the medullary canal.
  • EP 434 604 A1 has already disclosed an anchoring shaft for a femoral head prosthesis (thigh prosthesis) which has a central feed channel for viscous bone cement. The shaft has lateral outlet openings for the bone cement in its distal end region, while the distal end of the bone cell supply channel is closed by a medullary plug provided with elastic centering flaps.
  • EP A 2 0129531 also shows a prosthesis socket provided with a centering plug at the lower end.
  • This prosthetic socket should be made using the impression technique and thus be fitted into the bone.
  • FIG. 1 A further example of a prosthesis to be cemented in a proximal bone cavity is shown in US Pat. No. 4,274,163.
  • the prosthesis body is provided on the side with a detachably screwed-on connection coupling for a supply tube for bone cement and has a system of distribution channels for the bone cement in its interior, the some have lateral outlet openings and also a distal outlet opening above a medullary barrier.
  • a screw clamp to be attached to the bone with a centering device for the prosthesis is used to hold the prosthesis body during the anchoring process.
  • the present invention has for its object to enable a cheap cementing of the prosthesis socket with uniform distribution of the bone cement during the insertion process.
  • Such a design enables a particularly uniform cement distribution in a simple manner without requiring special attention from the surgeon for the cement distribution, and the prosthesis socket is reliably and permanently seated.
  • Claim 2 characterizes a particularly advantageous further development in that the distal end of the prosthesis socket and the proximal end of the medullary plug are designed to impart a swirl movement for the ascending bone cement.
  • the medullary plug is designed proximally with spiral guides for the bone cement emerging distally from the prosthesis socket.
  • FIG. 1 a shows schematically a femur freed from the marrow (thigh bone) with a prosthesis shaft pre-positioned by means of a guide rod (without joint ball)
  • Figure lb shows the arrangement of Figure 1 after removal of the guide mandrel when pouring cement, which rises evenly from distal to proximal;
  • Figure lc shows the cemented prosthesis socket
  • FIG. 2 shows the outer side view of a medullary plug which can be used in the arrangement according to FIGS. 1a-1c and which can be anchored in the bone with an expansion effect;
  • Figure 3 shows the inside view of the
  • Figure 4 shows schematically the guide mandrel with screwed medullary plug and screwed handle (outside the bone);
  • FIG. 5 illustrates the anatomical shape of the prosthesis socket with an attached adapter for cement filling and a conical attachment for attaching a joint ball and a positioning claw to be driven into the bone at the top;
  • Figure 6 shows the positioning claw
  • FIG. 7 shows the adapter for filling the cement in detail
  • FIG. 8a schematically shows, in the ventral-dorsal viewing direction, the prosthesis socket anatomically adapted to the femoral cavity with the cement filling indicated centrally to the medullary plug;
  • FIG. 8b shows the arrangement according to FIG. 8a with a lateral viewing direction.
  • the prosthesis socket set according to the present invention is described with regard to the attachment of an artificial hip joint ball, for the anchoring of which the prosthesis socket shown is used.
  • the hip joint ball itself can be placed separately on a conical shoulder 1 (FIG. 5) of the prosthesis socket 3.
  • Figures la - lc illustrate schematically and also without depicting a hip joint ball (and also not the cone attachment) the pre-positioning of the prosthesis stem by means of a centering and guide mandrel 5 (screwed into a medullary plug 7), and the filling of Cement and its steady ascent from distal (away from the patient's body) to proximal (towards the patient's body).
  • the main problem areas in cement processing for attaching hip prosthesis stems and cementing them in are laminations, folds, blood-cement mixtures (PMMA bone cement) and air pockets.
  • PMMA bone cement blood-cement mixtures
  • the normally processed PMMA bone cement is of relatively high viscosity so that the prosthesis socket pressed into the femur (thigh bone) does not change its position as far as possible, and at the same time the transfer of polymers into the bloodstream is reduced.
  • prosthesis socket set To achieve the desired steady ascent of the bone cement (Fig. Lb - lc) porthesis shaft 3, guide pin 5 and medullary plug 7 are coordinated as a prosthesis shaft set, this also a positioning claw 9 (Fig. 5) and expediently a cement filler adapter 11 has.
  • the elements of the prosthesis socket set have the following design:
  • FIGS. 8a and 8b are adapted to the anatomical shape of the proximal femoral medullary canal in the manner illustrated in FIGS. 8a and 8b.
  • an optimized shaft design was designed for different sizes, which is used for the purposes of the present invention.
  • Such profile prosthesis stems are available from DePuy in 5 different sizes, each for right use and left use. They are designed for a gap of about 2 mm between the prosthesis socket and the rasped bone wall, which is then filled by the cement.
  • the profile prosthesis socket is now provided with a through-bore 13 of 4 mm diameter, which on the one hand can accommodate the guide and centering mandrel 5, but also serves as a cement supply channel.
  • the through hole 13 of 4 mm inner diameter is provided at the end with a threaded hole for a 6 mm thread (M6), and has a length of about 6 mm.
  • the threaded hole serves to screw in the corresponding M6 thread of the cement filling adapter shown in FIG. 7.
  • the adapter has a 4 mm through hole for centering the guide mandrel 5.
  • the positioning claw 11, which has a centering hole 21, ensures the position of the bone in a manner to be described in more detail below.
  • distal end 15 of the prosthesis socket has a rounded design that fits at a distance into the cavity of the medullary plug and acts aerodynamically with the design of the medullary plug 7 to be explained in more detail in the sense of the one illustrated in FIG. 1b uniform ascent of the cement from distal to proximal together.
  • the through hole 5 can also serve to pass a blood suction tube, not shown in detail.
  • the graphic representation would correspond schematically to that of the centering and guide mandrel 5.
  • the medullary plug 7 has claw-like engagement grooves on the outside, which secure it with a wedge effect in the bone.
  • the distal end of the prosthesis shaft and the medullary plug 7 are matched to one another in the sense of a swirl design in order to give the cement emerging from the distal end of the prosthesis shaft a swirl which allows it to rise as evenly as possible around the prosthesis shaft, as in FIGS. lc illustrates.
  • Figure 3 illustrates the interior design of the medullary plug 7 with turbine blade-like spiral grooves or guides 15.
  • Fig. 4 you can see the pot-like design of the medullary plug 7.
  • the arrangement advantageously comprises 6 or 9 spiral grooves.
  • the number, depth and slope of the spiral grooves can be matched to the viscosity of the cement used, which is chosen to be low-viscosity.
  • the entry plane of the medullary plug and the distal end of the prosthesis shaft are approximately 5 mm apart
  • SPARE BLADES (RULE 26) positioned.
  • a raised base 17 is provided in the central area of the medullary plug, which has a central M3 threaded hole for screwing in a threaded end of the centering and guide mandrel 5.
  • an opposing M4 thread is provided, onto which a handle 19 can be screwed, which allows the dome 5 to be unscrewed after the medullary plug 7 has been inserted into the bone.
  • the distal section of the prosthesis shaft which forms the outlet end of the bone cement towards the medullary plug 7, can also be expanded and equipped with spiral-shaped spiral guides, for example 9 mm high, to communicate a swirl to the outflowing bone cement.
  • the medullary plug can be produced as a simple plastic pressed part, and therefore the spiral guides 15 are preferably provided in the medullary plug 7 in the manner illustrated in FIG. 3.
  • the pot part of the medullary plug can have a diameter of about 12 - 22 mm and, for example, without the thread, can be 12 mm deep.
  • the described design of the prosthesis socket and medullary plug allows the cement to rise uniformly, so that the previously problematic laminations, folds, blood-cement mixtures and Air pockets can be avoided.
  • Cement injection can be accomplished in less than 60 seconds.
  • the prosthesis shaft 3 is to be secured in its position on the femur by means of the positioning claw 9 shown in FIGS. 5 and 6.
  • Such positioning claws 9 are expediently manufactured in dimensions corresponding to three different shaft sizes.
  • the claw tips intended to be driven into the femur can be seen.
  • the positioning claw 9 has a bore 21 which is used for centering the cement filling adapter 11 and thus also centers the guide mandrel 5.
  • a plastic tube can also be inserted through the through hole of the cement filling adapter, through which the necessary flushing can be carried out.
  • the centering and guide mandrel is provided with a length marking (not shown in more detail) in order to be able to exactly determine the position of the medullary plug in the femoral canal.
  • the positioning claw 9, together with the cement filling adapter temporarily screwed to it, ensures that the prosthesis shaft maintains its centered position in the femur, as it results after threading the prosthesis shaft on the mandrel 5 screwed to the medullary plug 7.
  • the adapter 11 and the claw 9 at the proximal end of the prosthesis socket provide the necessary fixation.
  • the positioning claw 9 also seals against the leakage of bone cement and ensures compression of the cement, which is introduced, for example, at 8 bar. When the cement has hardened, the positioning claw is also removed.
  • the cement guide adapter can be produced as a sterile single-use product made of polyurethane and can be added to the prosthesis socket set together with the medullary plug 7 and a positioning claw 9.
  • the centering and guide mandrel can also be included in a uniform set or used several times.
  • the components explained in detail above can be supplied individually or in groups of several or all together as a set. What is essential is the coordination that takes place for cheap handling and a good cement flow.
  • the described swirl design in the area of the medullary plug 7 and possibly the distal end of the shaft prosthesis is designed in accordance with the flow behavior of the bone cement selected in each case.
  • the desired uniform circumferential distribution of the bone cement emerging distally from the prosthesis socket can also be achieved without spiral guides, if such spiral guides, as shown in FIG. 3 at 15, have also proven to be particularly effective.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Abstract

Un ensemble de tige prothétique sert à cimenter une tige prothétique (3) dans des os, notamment dans le cas d'endoprothèses de la hanche. Un passage débouchant (13) s'étend le long de la tige (3). Une broche amovible de guidage (5) s'étend dans ce passage, pour le positionnement de la tige protétique (3) est assujettie de manière libérable dans un bouchon de canal médullaire (7) à ancrer dans l'os. Le passage (13) de réception de la broche de centrage (5) sert en même temps de canal d'amenée (13) de manière connue en soi d'un ciment visqueux à os. L'orifice de sortie du ciment est situé de manière elle aussi connue en soi à l'extrémité inférieure du canal d'amenée (13) de ciment. L'extrémité distale de la tige prothétique (3) pourvue de l'orifice de sortie de ciment et l'extrémité proximale opposée du bouchon (7) du canal médullaire assurent une distribution uniforme du ciment tout autour de la circonférence et sa montée régulière de l'extrémité distale à l'extrémité proximale. En particulier, l'extrémité distale de la tige prothétique (3) et l'extrémité proximale du bouchon (7) du canal médullaire servent à imprimer un mouvement de rotation au ciment montant. A cet effet, le bouchon (7) du canal médullaire est pourvu à son extrémité proximale de guides en spirale (15) servant à guider le ciment qui sort par l'extrémité distale de la tige prothétique (3).
PCT/EP1994/001258 1993-04-22 1994-04-22 Ensemble de tige prothetique WO1994024963A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU66472/94A AU6647294A (en) 1993-04-22 1994-04-22 Prosthesis shaft set
EP94915095A EP0683652A1 (fr) 1993-04-22 1994-04-22 Ensemble de tige prothetique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4313201.4 1993-04-22
DE4313201A DE4313201C2 (de) 1993-04-22 1993-04-22 Prothesenschaft-Set

Publications (1)

Publication Number Publication Date
WO1994024963A1 true WO1994024963A1 (fr) 1994-11-10

Family

ID=6486119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/001258 WO1994024963A1 (fr) 1993-04-22 1994-04-22 Ensemble de tige prothetique

Country Status (4)

Country Link
EP (1) EP0683652A1 (fr)
AU (1) AU6647294A (fr)
DE (1) DE4313201C2 (fr)
WO (1) WO1994024963A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9407135D0 (en) * 1994-04-11 1994-06-01 Aberdeen University And Plasma Treatment of osteoporosis
DE19740690A1 (de) * 1997-09-16 1999-03-18 Copf Franz Prof Dr Med Prothese
US5997581A (en) * 1997-12-29 1999-12-07 Johnson & Johnson Professional, Inc. Hip stem cement spacer
US6251141B1 (en) * 1998-10-23 2001-06-26 Pierson, Iii Raymond H. Bone canal plug, method of making, and method of using
GB9823308D0 (en) * 1998-10-23 1998-12-23 Benoist Girard & Cie Prosthetic implant cement deflector
IT1311546B1 (it) * 1999-09-09 2002-03-13 Lima Lto Spa Dispositivo e metodo di centramento di uno stelo femorale.
US6926741B2 (en) 2002-01-25 2005-08-09 Depuy Products, Inc. Centralizing cement plug with countersink

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006408A1 (fr) * 1978-06-30 1980-01-09 HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel Elément auxiliaire destiné à être inséré dans un canal médullaire pour garantir la fixation d'une prothèse implantée
GB2052267A (en) * 1979-06-30 1981-01-28 Hardinge K Medullary canal plug
EP0129531A2 (fr) * 1983-06-17 1984-12-27 N.V. Stewal S.A. Procédé et moyen pour la réalisation d'une prothèse
GB2157177A (en) * 1984-04-02 1985-10-23 Raymond G Tronzo Fenestrated hip screw
EP0331623A1 (fr) * 1988-02-29 1989-09-06 GebràœDer Sulzer Aktiengesellschaft Tige d'ancrage pour prothèse de tête de fémur
EP0379785A1 (fr) * 1989-01-25 1990-08-01 SMITH & NEPHEW RICHARDS, INC. Dispositif de centrage distal pour tige fémorale
EP0428127A1 (fr) * 1989-11-14 1991-05-22 V. Dipl.-Ing. Dr. Med . Jansson Endoprothèse à implanter avec ciment
EP0434604A1 (fr) * 1989-12-15 1991-06-26 GebràœDer Sulzer Aktiengesellschaft Tige d'ancrage pour un prothèse fémorale
WO1991008720A1 (fr) * 1989-12-07 1991-06-27 Laboratorium Für Experimentelle Chirurgie Tige adaptable pour endoprotheses
US5047061A (en) * 1989-01-20 1991-09-10 Brown Byron L Prosthesis holder
FR2662931A1 (fr) * 1990-06-11 1991-12-13 Setiey Louis Element de prothese d'articulation scelle a un os.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274163A (en) * 1979-07-16 1981-06-23 The Regents Of The University Of California Prosthetic fixation technique
DE8206558U1 (de) * 1982-03-05 1983-10-27 Faensen, Michael, Dr.med., 1000 Berlin Vorrichtung, bestehend aus einem hohlen Knochennagel und einer mit diesem verbundenen Hüftgelenkprothese

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006408A1 (fr) * 1978-06-30 1980-01-09 HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel Elément auxiliaire destiné à être inséré dans un canal médullaire pour garantir la fixation d'une prothèse implantée
GB2052267A (en) * 1979-06-30 1981-01-28 Hardinge K Medullary canal plug
EP0129531A2 (fr) * 1983-06-17 1984-12-27 N.V. Stewal S.A. Procédé et moyen pour la réalisation d'une prothèse
GB2157177A (en) * 1984-04-02 1985-10-23 Raymond G Tronzo Fenestrated hip screw
EP0331623A1 (fr) * 1988-02-29 1989-09-06 GebràœDer Sulzer Aktiengesellschaft Tige d'ancrage pour prothèse de tête de fémur
US5047061A (en) * 1989-01-20 1991-09-10 Brown Byron L Prosthesis holder
EP0379785A1 (fr) * 1989-01-25 1990-08-01 SMITH & NEPHEW RICHARDS, INC. Dispositif de centrage distal pour tige fémorale
EP0428127A1 (fr) * 1989-11-14 1991-05-22 V. Dipl.-Ing. Dr. Med . Jansson Endoprothèse à implanter avec ciment
WO1991008720A1 (fr) * 1989-12-07 1991-06-27 Laboratorium Für Experimentelle Chirurgie Tige adaptable pour endoprotheses
EP0434604A1 (fr) * 1989-12-15 1991-06-26 GebràœDer Sulzer Aktiengesellschaft Tige d'ancrage pour un prothèse fémorale
FR2662931A1 (fr) * 1990-06-11 1991-12-13 Setiey Louis Element de prothese d'articulation scelle a un os.

Also Published As

Publication number Publication date
EP0683652A1 (fr) 1995-11-29
AU6647294A (en) 1994-11-21
DE4313201C2 (de) 1995-06-01
DE4313201A1 (de) 1994-11-03

Similar Documents

Publication Publication Date Title
DE69417098T2 (de) Biologisch abbaubarer medullärer Pfropfen
EP0592897B1 (fr) Modulaire pour une prothèse de la hanche
DE69621087T2 (de) Prothetisches Implantat mit Rippen
EP0135755B1 (fr) Tige pour une prothèse de l'articulation de la hanche
DE4435497C1 (de) Modulares Knochenimplantat mit Pfanne und Stiften
DE69729140T2 (de) Instrumentarium für die Einsetzung eines chirurgischen Implantats
DE69113746T2 (de) Teilweise zementierte Femurprothese.
EP0447734B1 (fr) Prothèse de tête du fémure destinée à être fixée sans ciment
DE69935399T2 (de) Proximale femorale Hülse für eine Revisionshüftprothese
EP0421008B1 (fr) Partie fémorale pour endoprothése d'articulation de la hanche
DE2610922A1 (de) Schaft fuer kniegelenk-endoprothesen
EP0942691B1 (fr) Element femur d'une endoprothese d'articulation de la hanche
DE2854334C3 (de) Oberschenkel-Hüftgelenk-Endoprothese
EP0058745A1 (fr) Tige droite aplatie pour une endoprothèse d'articulation
DE3804239A1 (de) Gelenkpfannenteil fuer eine gelenkprothese
EP0998883A2 (fr) Outil d'implantation pour un ligament croisé dans une articulation du genou
DE8237288U1 (de) Femorale Hüftgelenkprothese
DE69514621T2 (de) Femurschaft für Hüftprothese
EP1304984B1 (fr) Element chirurgical
DE69217354T2 (de) Hüftprothesenschaft mit einem drainagensystem für den markkanal
EP1168989B1 (fr) Prothese de tete d'articulation et pieces necessaires a sa realisation
DE2805305A1 (de) Kuenstliches hueftgelenk
DE69515455T2 (de) Femurschaft mit verwringtem Profil für Hüftprothese
DE4313201C2 (de) Prothesenschaft-Set
DE60104184T2 (de) Knochentransplantatverdichter

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1994915095

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1994915095

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1994915095

Country of ref document: EP