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WO2002007647A2 - Raccord modulaire pour composant orthopedique - Google Patents

Raccord modulaire pour composant orthopedique Download PDF

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Publication number
WO2002007647A2
WO2002007647A2 PCT/US2001/023000 US0123000W WO0207647A2 WO 2002007647 A2 WO2002007647 A2 WO 2002007647A2 US 0123000 W US0123000 W US 0123000W WO 0207647 A2 WO0207647 A2 WO 0207647A2
Authority
WO
WIPO (PCT)
Prior art keywords
concentric wall
taper
modular connection
junction
orthopedic component
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.)
Ceased
Application number
PCT/US2001/023000
Other languages
English (en)
Other versions
WO2002007647A3 (fr
WO2002007647A9 (fr
Inventor
Alfred S. Despres, Iii
Daniel E. E. Hayes, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DePuy Orthopaedics Inc
Original Assignee
DePuy Orthopaedics Inc
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 Orthopaedics Inc filed Critical DePuy Orthopaedics Inc
Priority to AU80670/01A priority Critical patent/AU780571B2/en
Priority to JP2002513385A priority patent/JP4949593B2/ja
Priority to EP01959079A priority patent/EP1309295B1/fr
Priority to DE60137050T priority patent/DE60137050D1/de
Priority claimed from US09/909,929 external-priority patent/US6669728B2/en
Publication of WO2002007647A2 publication Critical patent/WO2002007647A2/fr
Publication of WO2002007647A3 publication Critical patent/WO2002007647A3/fr
Anticipated expiration legal-status Critical
Publication of WO2002007647A9 publication Critical patent/WO2002007647A9/fr
Ceased legal-status Critical Current

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
    • A61F2/38—Joints for elbows or knees
    • A61F2/389—Tibial components
    • 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
    • A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30092—Properties of materials and coating materials using shape memory or superelastic materials, e.g. nitinol
    • 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
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A61F2002/3035—Conically- or frustoconically-shaped protrusion and recess the male convex cone having an inner female concave taper
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30484—Mechanically expandable devices located on the first prosthetic part for locking into or onto the second prosthetic part
    • 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
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30495—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
    • 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
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • 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
    • A61F2002/30795—Blind bores, 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
    • A61F2002/30795—Blind bores, e.g. of circular cross-section
    • A61F2002/30807—Plurality of blind bores
    • A61F2002/30808—Plurality of blind bores parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • 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
    • 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

Definitions

  • This invention relates to surgical apparatus and procedures in general, and more particularly to orthopedic components. Background Of The Invention
  • Orthopedic components are well known in the art. For example, in joint replacement surgery, portions of a joint are replaced with orthopedic components so as to provide long-lasting function and pain-free mobility. More particularly, in the case of a prosthetic total hip joint, the head of the femur is replaced with a prosthetic femoral stem component, and the socket of the acetabulum is replaced by a prosthetic acetabular cup component, whereby to provide a prosthetic total hip joint. Similarly, in the case of a prosthetic total knee joint, the top of the tibia is replaced by a prosthetic tibial component, and the bottom of the femur is replaced by a prosthetic femoral component, whereby to provide a prosthetic total knee joint.
  • orthopedic components are also used in a variety of other ways.
  • orthopedic components may be used to stabilize a fractured bone, or to secure two vertebral bodies together, or to hold a bone graft to a bone, or to secure soft tissue to a bone, etc.
  • an orthopedic component may comprise two or more elements which may need to be secured to one another.
  • the prosthetic femoral stem component is sometimes constructed out of a plurality of separate elements, wherein each of the elements may be independently selected so as to most closely approximate patient anatomy, and wherein the separate elements may be assembled to one another using modular connections, so as to provide the best possible prosthetic femoral stem component for the patient.
  • the prosthetic tibial component is also sometimes formed out of a plurality of separate elements which are assembled using modular connections. Still other types of orthopedic components may require, or may benefit from, the assembly of a plurality of separate elements using modular connections.
  • one object of the present invention is to provide an improved modular connection for connecting together a plurality of separate elements so as to form an orthopedic component.
  • Another object of the present invention is to provide an improved orthopedic component.
  • an improved modular connection for connecting together a plurality of separate elements so as to form an orthopedic component, the improved modular connection comprising, in combination, a taper junction and an engaged-fit junction.
  • an improved orthopedic component comprising a first element and a second element, with the first element and the second element being secured to one another with a modular connection, wherein the modular connection comprises, in combination, a taper junction and an engaged-fit junction.
  • Fig. 1 is a schematic, exploded side view of one form of modular connection formed in accordance with the present invention
  • Fig. 2 is a schematic, exploded side view of another form of modular connection formed in accordance with the present invention
  • Fig. 3 is a schematic, exploded side view of still another form of modular connection formed in accordance with the present invention
  • Fig. 4 is a schematic, exploded side view of yet another form of modular connection formed in accordance with the present invention
  • Fig. 5 is a schematic, exploded side view of another form of modular connection formed in accordance with the present invention.
  • Orthopedic component 5 may comprise a prosthetic femoral stem component of the sort used in a prosthetic total hip joint and comprising a plurality of separate elements which are assembled using a modular connection; or orthopedic component 5 may comprise a prosthetic tibial component of the sort used in a prosthetic total knee joint and comprising a plurality of separate elements which are assembled using a modular connection; or orthopedic component 5 may comprise any other type of orthopedic component which may require, or which may benefit from, the assembly of a plurality of separate elements using a modular connection. Orthopedic component 5 generally comprises a first element 10 and a second element 15.
  • First element 10 includes an aperture 20 into which portions of second element 15 extend.
  • first element 10 and second element 15 are adapted to be secured to one another using an improved modular connection 25 so as to form the complete orthopedic component 5.
  • modular connection 25 comprises, in combination, two load-bearing junctions: a taper junction 30 and an engaged-fit junction 35.
  • Taper taper junction 30 is formed by the interaction of a first taper 40 with a corresponding second taper 45. More particulary, first taper 40 is formed on a projection 50 of second element 15. Second taper 45 is formed along a portion of the sidewall defining the first body element's aperture 20. First taper 40 and second taper 45 seat securely against one another so as to together form the load-bearing taper junction 30.
  • the engaged-fit junction 35 is formed by the interaction of a first concentric wall 55 with a second concentric wall 60. More particularly, first concentric wall 55 is formed on projection 50 of second element 15. Preferably first concentric wall 55 is disposed on projection 50 coaxial with, and distal to, first taper 40.
  • Second concentric wall 60 is formed along a portion of the sidewall defining the first element's aperture 20.
  • second concentric wall 60 is disposed on first element 10 coaxial with, and distal to, second taper 60.
  • First concentric wall 55 and second concentric wall 60 seat securely against one another so as to form the load- bearing engaged-fit junction 35.
  • the engaged-fit junction 35 is a mechanical connection that achieves stability by the deformation of one member so that it is pressure locked against a constraining second member.
  • This deformation can be expansion (e.g., as in a taper expanded collet) or contraction (e.g., as in a force fit) .
  • the deformation can also be effected by thermal expansion or thermal contraction (e.g., as with a shape memory alloy such as Nitinol or the like) .
  • the resulting mechanical connection has surfaces which are forcefully engaged against one another as a result of the deformation, whereby to establish the engaged-fit junction.
  • first concentric wall 55 and second concentric wall 60 can be made to seat securely against one another so as to form the load-bearing engaged-fit junction 35.
  • first concentric wall 55 can be made slightly oversized relative to second concentric wall 60, such that force fitting first concentric wall 55 internal to second concentric wall 60 will create the engaged-fit junction 35.
  • the distal end of the second element's projection 50 may be formed with a recess 65, and the proximal end of third element 70 may include a projection 75 for insertion into recess 65.
  • projection 75 is oversized relative to recess 65, such that insertion of projection 75 into recess 65 will cause a radial expansion of first concentric wall 55 into engagement with second concentric wall 60, whereby to create the engaged-fit junction 35.
  • recess 65 and projection 75 are both tapered, and the distal end of second element 15 is a split collet.
  • the distal end of second element 15 may be formed out of a material sufficiently resilient to engage second concentric wall 60 without being split.
  • modular connection 25 is able to accommodate axial, bending and torsional loads better than prior art devices. More particularly, modular connection 25 simultaneously provides two load-bearing junctions: the taper junction 30 and the engaged-fit junction 35.
  • the taper junction 30 accommodates axial (i.e., compressive) loads extremely well.
  • the engaged-fit junction 35 accommodates bending and torsional loads extremely well.
  • the engaged-fit junction 35 stabilizes the taper junction 30 against bending and torsional loads.
  • the two load-bearing junctions collectively handle axial, bending and torsional loads significantly better than prior art devices .
  • the aperture 20 comprises a blind hole formed in first element 10
  • third element 70 extends through an opening 80 formed in second element 15 and communicating with recess 65, with engaged-fit junction 35 being actuated by pulling proximally on third element 70 once first taper 40 has been seated against second taper 45.
  • FIG. 3 there is shown another alternative form of construction.
  • the taper junction 30 and the engaged-fit junction 35 are disposed parallel to one another, rather than coaxial with one another as shown in Figs. 1 and 2.
  • aperture 20 comprises a pair of parallel apertures
  • projection 50 comprises a pair of parallel projections 50.
  • Fig. 4 there is shown still another alternative form of construction.
  • the taper junction 30 and the engaged-fit junction 35 are disposed coaxial and to at least some extent overlap with one another, rather than being axially separated in the manner shown in Fig. 2.
  • Fig. 5 there is shown yet another form of construction.
  • third element 70 is in the form of a ring and is used to drive second element 15 inward so as to effect the engaged-fit junction 35 between first concentric wall 55 and second concentric wall 60.
  • this is effected by providing second element 15 with a taper surface 85 and third element 70 with a corresponding taper surface 90.
  • first element 10 and second element 15 are brought together so first taper 40 engage second taper 45 and so that first concentric wall 55 is adjacent to second concentric wall 60, and then third element 70 is moved toward second element 15 so that the engagement of taper surface 85 with taper surface 90 causes first concentric wall 55 to securely engage second concentric wall 60, whereby to actuate the engaged-fit junction 35.

Landscapes

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

Abstract

L'invention concerne un composant orthopédique constitué d'un premier élément et d'un second élément. Le premier élément et le second élément sont fixés l'un à l'autre par un raccord modulaire. Ce raccord modulaire comprend une jonction conique et une jonction ajustée par emboîtement.
PCT/US2001/023000 2000-07-20 2001-07-20 Raccord modulaire pour composant orthopedique Ceased WO2002007647A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU80670/01A AU780571B2 (en) 2000-07-20 2001-07-20 Modular connection for orthopedic component
JP2002513385A JP4949593B2 (ja) 2000-07-20 2001-07-20 整形外科的構成要素用のモジュラー式接続具
EP01959079A EP1309295B1 (fr) 2000-07-20 2001-07-20 Raccord modulaire pour composant orthopedique
DE60137050T DE60137050D1 (de) 2000-07-20 2001-07-20 Modulare verbindung für eine orthopädische komponente

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US21995500P 2000-07-20 2000-07-20
US21996300P 2000-07-20 2000-07-20
US60/219,955 2000-07-20
US60/219,963 2000-07-20
US09/909,929 US6669728B2 (en) 2000-07-20 2001-07-20 Modular connection for orthopedic component

Publications (3)

Publication Number Publication Date
WO2002007647A2 true WO2002007647A2 (fr) 2002-01-31
WO2002007647A3 WO2002007647A3 (fr) 2002-05-23
WO2002007647A9 WO2002007647A9 (fr) 2003-04-03

Family

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Family Applications (1)

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PCT/US2001/023000 Ceased WO2002007647A2 (fr) 2000-07-20 2001-07-20 Raccord modulaire pour composant orthopedique

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WO (1) WO2002007647A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004249105A (ja) * 2003-02-18 2004-09-09 Zimmer Technology Inc 膝補綴部材の頸骨用構成要素、その組立工具、およびその使用方法
US6875239B2 (en) 2002-04-25 2005-04-05 Medicinelodge, Inc. Modular prosthesis for replacing bone and method
US6902583B2 (en) 2002-04-25 2005-06-07 Medicinelodge, Inc. Tripartite attachment mechanism and method for a modular prosthesis
US7799086B2 (en) 2002-04-25 2010-09-21 Zimmer Technology, Inc. Modular bone implant, tools, and method
US8048163B2 (en) 2002-02-20 2011-11-01 Zimmer, Inc. Knee arthroplasty prosthesis

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040102852A1 (en) 2002-11-22 2004-05-27 Johnson Erin M. Modular knee prosthesis
EP1787603A1 (fr) 2005-11-18 2007-05-23 Zimmer GmbH Plate-forme de base pour une articulation artificielle

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE2966320D1 (en) * 1979-01-26 1983-11-24 Osteo Ag Knee joint slide prosthesis
US4936853A (en) * 1989-01-11 1990-06-26 Kirschner Medical Corporation Modular knee prosthesis
US5108452A (en) * 1989-02-08 1992-04-28 Smith & Nephew Richards Inc. Modular hip prosthesis
US5156624A (en) * 1991-09-06 1992-10-20 Zimmer, Inc. Head adaptor for hip prosthesis
US5782921A (en) * 1996-07-23 1998-07-21 Johnson & Johnson Professional, Inc. Modular knee prosthesis
US5906644A (en) * 1996-08-30 1999-05-25 Powell; Douglas Hunter Adjustable modular orthopedic implant
US5766255A (en) * 1996-12-23 1998-06-16 Johnson & Johnson Professional, Inc. Modular joint prosthesis stabilization and augmentation system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8048163B2 (en) 2002-02-20 2011-11-01 Zimmer, Inc. Knee arthroplasty prosthesis
US9072605B2 (en) 2002-02-20 2015-07-07 Zimmer, Inc. Knee arthroplasty prosthesis
US6875239B2 (en) 2002-04-25 2005-04-05 Medicinelodge, Inc. Modular prosthesis for replacing bone and method
US6902583B2 (en) 2002-04-25 2005-06-07 Medicinelodge, Inc. Tripartite attachment mechanism and method for a modular prosthesis
US7182786B2 (en) 2002-04-25 2007-02-27 Zimmer Technology, Inc. Modular bone implant, tool, and method
US7799086B2 (en) 2002-04-25 2010-09-21 Zimmer Technology, Inc. Modular bone implant, tools, and method
US8241367B2 (en) 2002-04-25 2012-08-14 Zimmer, Inc. Modular bone implant, tool, and method
JP2004249105A (ja) * 2003-02-18 2004-09-09 Zimmer Technology Inc 膝補綴部材の頸骨用構成要素、その組立工具、およびその使用方法
EP1449500A3 (fr) * 2003-02-18 2004-10-20 Zimmer Technology, Inc. Implant osseux modulaire, outil et méthode
AU2004200394B2 (en) * 2003-02-18 2009-04-23 Zimmer Technology, Inc. Modular bone implant, tool, and method

Also Published As

Publication number Publication date
WO2002007647A3 (fr) 2002-05-23
WO2002007647A9 (fr) 2003-04-03

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