FR2837695A1 - Femoral shank for hip prosthesis is made in three separate modular sections with couplings to join them together or separate them - Google Patents

Femoral shank for hip prosthesis is made in three separate modular sections with couplings to join them together or separate them Download PDF

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Publication number
FR2837695A1
FR2837695A1 FR0204103A FR0204103A FR2837695A1 FR 2837695 A1 FR2837695 A1 FR 2837695A1 FR 0204103 A FR0204103 A FR 0204103A FR 0204103 A FR0204103 A FR 0204103A FR 2837695 A1 FR2837695 A1 FR 2837695A1
Authority
FR
France
Prior art keywords
femoral
neck
separate
couplings
metaphyseal
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.)
Granted
Application number
FR0204103A
Other languages
French (fr)
Other versions
FR2837695B1 (en
Inventor
Hubert Georges Marc Candavoine
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.)
Medical Solution SARL
Original Assignee
Medical Solution SARL
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 Medical Solution SARL filed Critical Medical Solution SARL
Priority to FR0204103A priority Critical patent/FR2837695B1/en
Publication of FR2837695A1 publication Critical patent/FR2837695A1/en
Application granted granted Critical
Publication of FR2837695B1 publication Critical patent/FR2837695B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61F2/32—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
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30149—Convex polygonal shapes pentagonal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30159—Concave polygonal shapes
    • A61F2002/30171—Concave polygonal shapes rosette- or star-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
    • 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
    • A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
    • A61F2002/30364—Rotation about the common longitudinal axis
    • A61F2002/30367—Rotation about the common longitudinal axis with additional means for preventing said rotation
    • 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
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
    • 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
    • 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
    • A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
    • 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
    • A61F2002/30795—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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30879—Ribs
    • A—HUMAN NECESSITIES
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • 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
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30886—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts externally-threaded
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—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
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
    • A61F2002/30892—Plurality of protrusions parallel
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • 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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3652—Connections of necks to 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
    • A61F2/3672—Intermediate parts of shafts
    • A61F2002/3674—Connections of proximal parts to distal 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/3686—Geometrical features bent
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/005—Rosette-shaped, e.g. star-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
    • 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

Abstract

The prosthesis shank consists of separate diaphysis (1) and metaphysis (2) components and a neck (3) to receive a femoral head, made with couplings for assembling and separating them. The diaphysis and metaphysis components are joined by a threaded coupling (1a, 2b) and adjacent flat surfaces (1b, 2c), while the neck is fitted to the upper end of the metaphysis section by matching truncated conical surfaces (2d, 3a) with matching flats (2d1, 3a1) or splines.

Description

de peigne (18).comb (18).

L'invention se rattache au secteur technique des implants  The invention relates to the technical sector of implants

orthopédiques, notamment des prothèses de hanche.  orthopedics, including hip prostheses.

D'une manière parfaitement connue, une prothèse de hanche comprend une tige fémorale destinée à être impactée dans le canal médullaire avec, ou non, du ciment orthopédique. L'extrémité supérieure de la partie métaphysaire de la tige, présente un col fémoral orienté angulairement par rapport à l'axe du fémur en étant destiné à recevoir une tête fémorale. La tête fémorale coopère avec un implant cotyloïdien fixé  In a perfectly known manner, a hip prosthesis comprises a femoral stem intended to be impacted in the medullary canal with, or not, orthopedic cement. The upper end of the metaphyseal part of the stem has a femoral neck oriented angularly with respect to the axis of the femur, being intended to receive a femoral head. The femoral head cooperates with a fixed acetabular implant

dans la cavité cotyloïdienne de l'os iliaque.  in the acetabulum of the iliac bone.

Différentes solutions techniques ont été proposées, au niveau notamment des tiges fémorales, de manière à réaliser des prothèses dites << anatomiques " et des prothèses dites " modulaires ". Généralement, ces tiges fémorales sont réalisées d'une manière monobloc, de sorte qu'il est nécessaire de disposer d'un nombre relativement important, afin de pouvoir s'adapter aux différents types d'indications pathologiques que l'on peut rencontrer. Pour remédier à ces inconvénients, on a proposé des tiges fémorales dont la partie métaphysaire présente des agencements pour recevoir, d'une manière interchangeable, un col modulaire susceptible d'être réalisé dans  Different technical solutions have been proposed, in particular with regard to the femoral stems, so as to produce so-called "anatomical" prostheses and so-called "modular" prostheses. Generally, these femoral stems are produced in a single piece, so that it is necessary to have a relatively large number, in order to be able to adapt to the different types of pathological indications that may be encountered. To remedy these drawbacks, femoral stems have been proposed, the metaphyseal portion of which has arrangements for receiving, interchangeably, a modular neck capable of being produced in

différentes longueurs et selon différentes orientations angulaires.  different lengths and according to different angular orientations.

Cette solution ne permet donc que d'orienter angulairement le col  This solution therefore only allows to angularly orient the cervix

fémoral par rapport à l'implant cotyloïdien.  femoral compared to the acetabular implant.

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Aucune solution n'a été proposée pour réaliser une modularité au  No solution has been proposed to achieve modularity in

niveau de l'ensemble de la tige.level of the entire rod.

A partir de cet état de la technique, le problème que se propose de résoudre l'invention est de réaliser une tige anatomique modulaire de première intention ou de reprise, permettant de choisir, à volonté, après calibrage, la partie distale (diaphyse), la partie proximale (métaphyse), ainsi que la longueur et l'orientation du col fémoral, dans le but d'aboutir à une  From this state of the art, the problem which the invention proposes to solve is to produce a modular anatomical rod of first intention or recovery, making it possible to choose, at will, after calibration, the distal part (diaphysis), the proximal part (metaphysis), as well as the length and orientation of the femoral neck, in order to achieve a

solution proche d'une prothèse fémorale sur mesure.  solution close to a custom femoral prosthesis.

Pour résoudre ce problème, il a été conçu et mis au point une tige fémorale anatomique pour prothèse de hanche qui comprend trois éléments indépendants modulables, à savoir: - un élément diaphysaire, - un élément métaphysaire, - un col modulaire destiné à recevoir une tête fémorale, lesdits éléments et le col présentant des agencements complémentaires  To solve this problem, an anatomical femoral stem for hip prosthesis has been designed and developed which comprises three independent modular elements, namely: - a diaphyseal element, - a metaphyseal element, - a modular neck intended to receive a head femoral, said elements and the neck having complementary arrangements

d'accouplement démontable.removable coupling.

Pour résoudre le problème posé d' assurer l'interchangeabilité des différents éléments constitutifs de l'ensemble de la tige, en fonction des cas pathologiques à traiter, les agencements complémentaires d'accouplement sont constitués, pour l'élément métaphysaire, par un trou taraudé coaxial et formé à partir d'une face plane que présente l'extrémité inférieure dudit élément pour le vissage d'une portée filetée que présente, en débordement, l'extrémité supérieure de l'élément diaphysaire et par une empreinte en creux formée perpendiculairement à partir d'une face plane que présente -  To resolve the problem posed of ensuring the interchangeability of the various constituent elements of the entire rod, depending on the pathological cases to be treated, the complementary coupling arrangements are constituted, for the metaphyseal element, by a tapped hole coaxial and formed from a flat face which has the lower end of said element for the screwing of a threaded seat which has, in overflow, the upper end of the diaphyseal element and by a hollow imprint formed perpendicular to from a flat face that presents -

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l'extrémité supérieure de l'élément métaphysaire et orientée angulairement par rapport à l'autre face plane inférieure, ladite empreinte étant apte à  the upper end of the metaphyseal element and angularly oriented relative to the other lower planar face, said imprint being able to

recevoir une portée complémentaire que présente le col modulaire.  receive a complementary scope presented by the modular neck.

Pour résoudre le problème posé d'assurer l'accouplement du col modulaire et de la partie proximale de l'élément métaphysaire, l'empreinte, que présente l'extrémité supérieure orientée dudit élément métaphysaire et la portée complémentaire du col, sont tronconiques pour réaliser un  To solve the problem posed of ensuring the coupling of the modular neck and the proximal part of the metaphyseal element, the impression, which has the oriented upper end of said metaphyseal element and the complementary range of the neck, are frustoconical to achieve a

assemblage du type cone-morse.cone-morse type assembly.

Avantageusement, l ' empreinte et la portée d' assemblage du col présentent transversalement des méplats complémentaires pour assurer une indexation angulaire. Les méplats sont régulièrement réparties sur une  Advantageously, the imprint and the assembly surface of the neck have transverse complementary flats to ensure angular indexing. The flats are regularly distributed over a

circonférence et constituent, par exemple, un pentagone.  circumference and constitute, for example, a pentagon.

D'une manière connue, le col modulaire peut étre droit ou oblique.  In a known manner, the modular neck can be straight or oblique.

L'empreinte recevant le col est orientée selon un angle d' environ 3 5 à 5 5   The impression receiving the neck is oriented at an angle of approximately 3 5 to 5 5

par rapport à l'axe fémoral.relative to the femoral axis.

Dans une autre forme de réalisation, l'élément métaphysaire présente  In another embodiment, the metaphyseal element has

des stries anti-enfoncement dans le canal médullaire.  anti-sinking streaks in the spinal canal.

Compte tenu de l'effet de modularité recherché, l'élément métaphysaire est exécuté en différentes tailles droite ou gauche. L'élément  Given the desired modularity effect, the metaphyseal element is executed in different sizes, right or left. The element

diaphysaire est exécuté selon différentes longueurs et différents diamètres.  diaphyseal is performed in different lengths and diameters.

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L ' invention est exposée ci-après plus en détail à l ' aide des figures des dessins annexés dans lesquels: - la figure 1 est une vue de face avec coupe partielle des éléments constitutifs de la tige fémorale, les éléments étant présentés avant montage et assemblage; - la figure 2 est une vue correspondant à la figure 1, après assemblage des différents éléments constitutifs de la tige fémorale; - la figure 3 est une vue de côté correspondant à la figure 2; - la figure 4 est une vue en coupe transversale considérée selon la  The invention is set out below in more detail with the aid of the figures of the appended drawings in which: - Figure 1 is a front view with partial section of the constituent elements of the femoral stem, the elements being presented before assembly and assembly; - Figure 2 is a view corresponding to Figure 1, after assembly of the various components of the femoral stem; - Figure 3 is a side view corresponding to Figure 2; - Figure 4 is a cross-sectional view taken along the

ligne 4-4 de la figure 2.line 4-4 of figure 2.

Selon une caractéristique à la base de l'invention, la tige fémorale désignée dans son ensemble par (T) comprend trois éléments modulables indépendants, à savoir un élément diaphysaire (1), un élément métaphysaire (2) et un col modulaire (3) (figure 1). L'élément métaphysaire (2) est exécuté dans différentes tailles droite ou gauche. L'élément diaphysaire (1) est exécuté selon différentes longueurs et différents diamètres. De même, le col modulaire (3) peut être exécuté selon différentes longueurs, en étant droit (figure des dessins) ou oblique, de manière à obtenir, d'une manière connue, différentes orientations angulaires de la tête fémorale (non représentée). De même, d'une manière connue, l'élément métaphysaire (2)  According to a characteristic underlying the invention, the femoral stem generally designated by (T) comprises three independent modular elements, namely a diaphyseal element (1), a metaphyseal element (2) and a modular neck (3) (figure 1). The metaphyseal element (2) is executed in different sizes, right or left. The diaphyseal element (1) is executed according to different lengths and different diameters. Similarly, the modular neck (3) can be executed in different lengths, being straight (figure of the drawings) or oblique, so as to obtain, in a known manner, different angular orientations of the femoral head (not shown). Likewise, in a known manner, the metaphyseal element (2)

peut présenter des stries anti-enfoncement, dans le canal médullaire (2a).  may show anti-sinking streaks in the spinal canal (2a).

Les différents éléments (1), (2) et (3) présentent des agencements complémentaires d'accouplement démontables. Comme le montre notamment la figure 1, l'extrémité inférieure de l'élément métaphysaire (2) présente un trou taraudé (2b) percé coaxialement à l'axe fémoral (x-x') à  The different elements (1), (2) and (3) have additional removable coupling arrangements. As shown in particular in Figure 1, the lower end of the metaphyseal element (2) has a threaded hole (2b) drilled coaxially with the femoral axis (x-x ') at

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partir d'une face plane (2c) fermée perpendiculairement audit axe (x-x'). Ce trou taraudé (2b) est destiné à recevoir une portée filetée (la) formoe en déDordement de l'extrémité supérieure de l'élément diaphysaire (1), coaxialement à l'axe fémoral (x-x') et perpendiculairement à une face plane (lb). Après vissage de la portée (la) dans le trou taraudé (2b) , les deux faces planes (lb) et (2c) sont en appui, les profils en section, considérés au niveau de l'extrémité inférieure de l'élément métaphysaire (2) et au niveau de l'extrémité supérieure de l'élément diaphysaire (1), étant sensiblement identiques pour assurer une parfaite continuité après assemblage desdits  from a flat face (2c) closed perpendicular to said axis (x-x '). This tapped hole (2b) is intended to receive a threaded bearing (la) formoe in overflow of the upper end of the diaphyseal element (1), coaxial to the femoral axis (x-x ') and perpendicular to a face plane (lb). After screwing the bearing surface (la) into the tapped hole (2b), the two flat faces (lb) and (2c) are in contact, the profiles in section, considered at the level of the lower end of the metaphyseal element ( 2) and at the upper end of the diaphyseal element (1), being substantially identical to ensure perfect continuity after assembly of said

éléments (1) et (2) (figure 2).elements (1) and (2) (Figure 2).

A l'opposé, l'extrémité supérieure de l'élément métaphysaire (2) présente une empreinte (2d) apte à recevoir une portée complémentaire (3a) que présente le col modulaire (3). L'empreinte (2d) est orientée angulairement par rapport à l'axe fémoral (x-x') selon un angle (a) compris entre 35 et 55 , environ. Cette empreinte (2d) est formée à partir d'une face plane (2e) orientée angulairement par rapport à la face plane (2c). La face  In contrast, the upper end of the metaphyseal element (2) has an imprint (2d) capable of receiving a complementary bearing (3a) presented by the modular neck (3). The impression (2d) is oriented angularly with respect to the femoral axis (x-x ') at an angle (a) of between 35 and 55, approximately. This imprint (2d) is formed from a flat face (2e) angularly oriented relative to the flat face (2c). The face

oblique (2e) est perpendiculaire à l'axe de l'empreinte (2d).  oblique (2e) is perpendicular to the axis of the imprint (2d).

Les empreintes (2d) et (3a) sont tronconiques pour réaliser un assemblage du type cone-morse. L'empreinte (2d) et la portée (3a) peuvent être lisses ou présenter des agencements complémentaires d'indexation angulaire. Par exemple, comme le montrent les figures des dessins, notamment les figures 1 et 4, l ' empreinte (2d) et la portée d' assemblage (3a) du col (3), présentent transversalement des méplats complémentaires (2dl) et (3al). Ces méplats (2dl) et (3al) sont répartis sur une circonférence et constituent, par exemple, un pentagone. Ainsi, dans le cas .  The imprints (2d) and (3a) are frustoconical to achieve an assembly of the cone-morse type. The imprint (2d) and the bearing surface (3a) can be smooth or have complementary arrangements for angular indexing. For example, as shown in the figures of the drawings, in particular Figures 1 and 4, the imprint (2d) and the assembly surface (3a) of the neck (3) have transverse complementary flats (2dl) and (3al ). These flats (2dl) and (3al) are distributed over a circumference and constitute, for example, a pentagon. So in the case.

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d'un col modulaire oblique, ces dispositions permettent d'obtenir différentes orientations angulaires de la tête fémorale fxée à l'extrémité  with an oblique modular neck, these arrangements make it possible to obtain different angular orientations of the femoral head fixed at the end

libre du col (3).free from the neck (3).

L'ensemble de la tige fémorale, selon les caractéristiques de l'invention, peut être impacté dans le canal médullaire avec ou non interposition d'un ciment orthopédique. La fxation de la tête fémorale, à l'extrémité libre du col modulaire, s'effectue par tout moyen connu et approprié. La tête fémorale peut être de différents diamètres et exécutée  The entire femoral stem, according to the characteristics of the invention, can be impacted in the medullary canal with or without the interposition of an orthopedic cement. The femoral head is fixed at the free end of the modular neck by any known and appropriate means. The femoral head can be of different diameters and executed

0 dans différents matériaux.0 in different materials.

Les avantages ressortent bien de la description, en particulier on  The advantages are apparent from the description, in particular one

souligne et on rappelle la possibilité d'adapter l'ensemble de la tige fémorale dans différents types d'indication que l'on peut rencontrer en choisissant différentes caractéristiques dimensionnelles appropriées de l'élément diaphysaire et/ou de l'élément métaphysaire et/ou du col modulaire.  underlines and recalls the possibility of adapting the entire femoral stem in different types of indication that can be encountered by choosing different appropriate dimensional characteristics of the diaphyseal element and / or of the metaphyseal element and / or of the modular neck.

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REVE ND I C ATI ON SDREAM ND I C ATI ON S

-1- Tige fémorale anatomique pour prothèse de hanche, caractérisée en ce qu'elle comprend trois éléments indépendants modulables, à savoir: - un élément diaphysaire (1), - un élément métaphysaire (2), - un col modulaire (3) destiné à recevoir une tête fémorale, lesdits éléments (1) et (2) et le col (3) présentant des agencements  -1- Anatomical femoral stem for hip prosthesis, characterized in that it comprises three independent modular elements, namely: - a diaphyseal element (1), - a metaphyseal element (2), - a modular neck (3) intended to receive a femoral head, said elements (1) and (2) and the neck (3) having arrangements

complémentaires d'accouplement démontable.  additional removable coupling.

-2- Tige selon la revendication 1, caractérisée en ce que les agencements complémentaires d'accouplement sont constitués, pour l'élément métaphysaire (2), par un trou taraudé coaxial (2b) formé à partir d'une face plane (2c) que présente l'extrémité inférieure dudit élément (2) pour le vissage d'une portée filetée (la) que présente, en débordement, l'extrémité supérieure de l'élément diaphysaire (1) et par une empreinte en creux (2d) formée perpendiculairement à partir d'une face plane que présente l'extrémité supérieure de l'élément métaphysaire (2) et orientée angulairement par rapport à l'autre face plane inférieure (2c), ladite empreinte (2d) étant apte à recevoir une portée complémentaire (3a) que  -2- Rod according to claim 1, characterized in that the complementary coupling arrangements are constituted, for the metaphyseal element (2), by a coaxial threaded hole (2b) formed from a flat face (2c) that has the lower end of said element (2) for the screwing of a threaded seat (la) that has, in overflow, the upper end of the diaphyseal element (1) and by a hollow imprint (2d) formed perpendicularly from a flat face presented by the upper end of the metaphyseal element (2) and oriented angularly with respect to the other lower flat face (2c), said imprint (2d) being able to receive a complementary bearing (3a) that

présente le col modulaire (3).presents the modular neck (3).

-3- Tige selon la revendication 2, caractérisée en ce que l'empreinte (2d) que présente l'extrémité supérieure orientée de l'élément métaphysaire (2) et la portée complémentaire (3a) du col (3), sont tronconiques pour réaliser  -3- Rod according to claim 2, characterized in that the imprint (2d) that has the oriented upper end of the metaphyseal element (2) and the complementary bearing (3a) of the neck (3), are frustoconical for achieve

un assemblage du type cone-morse.a cone-morse type assembly.

8 28376958 2837695

-4- Tige selon la revendication 3, caractérisée en ce que l'empreinte (2d) et la portée d'assemblage (3a) du col (3) présentent transversalement des  -4- Rod according to claim 3, characterized in that the imprint (2d) and the assembly surface (3a) of the neck (3) have transversely

méplats complémentaires pour assurer une indexation angulaire.  complementary flats to ensure angular indexing.

-5- Tige selon la revendication 4, caractérisée en ce que les méplats sont  -5- Rod according to claim 4, characterized in that the flats are

régulièrement réparties sur une circonférence et constituent un pentagone.  regularly distributed over a circumference and constitute a pentagon.

-6- Tige selon la revendication 1, caractérisée en ce que le col (3) est droit  -6- Rod according to claim 1, characterized in that the neck (3) is straight

lo ou oblique.lo or oblique.

-7- Tige selon la revendication 2, caractérisée en ce que l'empreinte (2d) est  -7- Rod according to claim 2, characterized in that the imprint (2d) is

orientée selon un angle d'environ 35 à 55 par rapport à l'axe fémoral.  oriented at an angle of about 35 to 55 relative to the femoral axis.

-8- Tige selon la revendication 1, caractérisée en ce que l'élément métaphysaire (2) présente des stries anti-enfoncement dans le canal médullaire. -9- Tige selon la revendication 1, caractérisée en ce que l'élément  -8- Rod according to claim 1, characterized in that the metaphyseal element (2) has anti-sinking streaks in the medullary canal. -9- Rod according to claim 1, characterized in that the element

métaphysaire (2) est exécuté en différentes tailles droite ou gauche.  metaphyseal (2) is performed in different sizes right or left.

-10- Tige selon la revendication 1, caractérisée en ce que l'élément diaphysaire (1) est exécuté selon différentes longueurs et différents diamètres.  -10- Rod according to claim 1, characterized in that the diaphyseal element (1) is executed in different lengths and different diameters.

FR0204103A 2002-03-28 2002-03-28 ANATOMIC FEMALE ROD FOR HIP PROSTHESIS Expired - Fee Related FR2837695B1 (en)

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FR2837695B1 FR2837695B1 (en) 2005-01-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20110122A1 (en) * 2011-02-01 2012-08-02 Ala Ortho S R L FEMORAL STEM FOR PROSTHESIS OF THE HIP.
US9737407B2 (en) 2010-09-13 2017-08-22 Derek James Wallace McMinn Prosthetic component

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651118A1 (en) * 1989-08-30 1991-03-01 Aubaniac Jean Cementless hip prosthesis
EP0634154A1 (en) * 1993-07-16 1995-01-18 MEC HINT S.r.l. Improvement in the locking among the components of a multicomponent prosthesis for use in traumatology, orthopedics and veterinary medicine
EP0677281A2 (en) * 1994-03-17 1995-10-18 G. Cremascoli S.R.L. Femoral prosthesis for recovering a prosthesis implantation which has provided negative results
US5653764A (en) * 1994-02-17 1997-08-05 Murphy; Stephen B. Modular hip prosthesis with discrete selectable angular orientation
FR2767471A1 (en) * 1997-08-25 1999-02-26 Serf Sa Femoral shank of hip prosthesis
DE29907341U1 (en) * 1999-04-26 1999-09-30 Diehl Klaus Endoprosthesis stem (PAC shaft) for the thigh part of a total endoprosthesis of the hip joint, cementless
EP1004283A2 (en) * 1998-11-23 2000-05-31 Johnson &amp; Johnson Professional, Inc. Modular stem and sleeve prosthesis
WO2000064384A1 (en) * 1999-04-27 2000-11-02 Steinicke Maschinen- Und Werkzeugbau Ag Endoprosthesis, especially for an artificial hip joint
US6290726B1 (en) * 2000-01-30 2001-09-18 Diamicron, Inc. Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651118A1 (en) * 1989-08-30 1991-03-01 Aubaniac Jean Cementless hip prosthesis
EP0634154A1 (en) * 1993-07-16 1995-01-18 MEC HINT S.r.l. Improvement in the locking among the components of a multicomponent prosthesis for use in traumatology, orthopedics and veterinary medicine
US5653764A (en) * 1994-02-17 1997-08-05 Murphy; Stephen B. Modular hip prosthesis with discrete selectable angular orientation
EP0677281A2 (en) * 1994-03-17 1995-10-18 G. Cremascoli S.R.L. Femoral prosthesis for recovering a prosthesis implantation which has provided negative results
FR2767471A1 (en) * 1997-08-25 1999-02-26 Serf Sa Femoral shank of hip prosthesis
EP1004283A2 (en) * 1998-11-23 2000-05-31 Johnson &amp; Johnson Professional, Inc. Modular stem and sleeve prosthesis
DE29907341U1 (en) * 1999-04-26 1999-09-30 Diehl Klaus Endoprosthesis stem (PAC shaft) for the thigh part of a total endoprosthesis of the hip joint, cementless
WO2000064384A1 (en) * 1999-04-27 2000-11-02 Steinicke Maschinen- Und Werkzeugbau Ag Endoprosthesis, especially for an artificial hip joint
US6290726B1 (en) * 2000-01-30 2001-09-18 Diamicron, Inc. Prosthetic hip joint having sintered polycrystalline diamond compact articulation surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9737407B2 (en) 2010-09-13 2017-08-22 Derek James Wallace McMinn Prosthetic component
ITMI20110122A1 (en) * 2011-02-01 2012-08-02 Ala Ortho S R L FEMORAL STEM FOR PROSTHESIS OF THE HIP.
WO2012104115A1 (en) * 2011-02-01 2012-08-09 Ala Ortho S.R.L. Femoral stem for hip prosthesis

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