FR2863866A1 - Femoral or humeral prosthesis rod for hip or shoulder joint, has surfaces inclined with each other such that locking of arms on rod provokes sliding of each arm towards base surface and supports arms against base surface - Google Patents
Femoral or humeral prosthesis rod for hip or shoulder joint, has surfaces inclined with each other such that locking of arms on rod provokes sliding of each arm towards base surface and supports arms against base surface Download PDFInfo
- Publication number
- FR2863866A1 FR2863866A1 FR0315288A FR0315288A FR2863866A1 FR 2863866 A1 FR2863866 A1 FR 2863866A1 FR 0315288 A FR0315288 A FR 0315288A FR 0315288 A FR0315288 A FR 0315288A FR 2863866 A1 FR2863866 A1 FR 2863866A1
- Authority
- FR
- France
- Prior art keywords
- rod
- branches
- femoral
- clamping
- jumper
- 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
Links
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30721—Accessories
- A61F2/30728—Collars; Bone edge protectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—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
- A61F2/40—Joints for shoulders
- A61F2/4059—Humeral 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
- A61F2/30767—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
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-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
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30153—Convex polygonal shapes rectangular
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- 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
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
-
- 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
- A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
-
- 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
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30721—Accessories
- A61F2/30728—Collars; Bone edge protectors
- A61F2002/30729—Separate collars
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30774—Apertures or holes, 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
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of grooves
- A61F2002/30828—Plurality of grooves 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
- 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
- A61F2002/3611—Heads or epiphyseal parts of femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
- A61F2002/3627—Necks with lateral apertures, holes or openings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/365—Connections of heads to necks
-
- A—HUMAN NECESSITIES
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2002/3678—Geometrical features
- A61F2002/368—Geometrical features with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
-
- A—HUMAN NECESSITIES
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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
- A61F2/40—Joints for shoulders
- A61F2/4059—Humeral shafts
- A61F2002/4062—Proximal or metaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- 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
- A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0019—Angular shapes rectangular
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
La présente invention concerne une tige fémorale ou humérale de prothèseThe present invention relates to a femoral stem or humeral prosthesis
pour l'articulation de la hanche ou de l'épaule, ainsi qu'une telle prothèse. for the articulation of the hip or the shoulder, as well as such a prosthesis.
Classiquement, une tige fémorale ou humérale comporte une queue de montage destinée à être logée dans le canal médullaire d'un fémur ou d'un humérus, ainsi qu'une extension extra-médullaire formant le col prothétique. Conventionally, a femoral or humeral stem comprises a mounting tail intended to be housed in the medullary canal of a femur or humerus, and an extra-medullary extension forming the prosthetic neck.
Par la demande de brevet français n 2 602 672, il est connu d'équiper une tige fémorale d'un arceau ou cavalier d'arrêt amovible, placé de manière à enfourcher cette tige fémorale à la jonction de la queue de montage et de l'extension extra-médullaire. Ce cavalier dépasse latéralement de la tige fémorale et peut de ce fait stopper l'enfoncement de la queue de montage dans le canal médullaire d'un fémur, en prenant appui sur un bord que ce fémur possède après avoir été réséqué. Une vis d'assemblage, dont la tige traverse la tige fémorale, relie les deux branches du cavalier d'arrêt l'une à l'autre. Elle vise à maintenir le cavalier d'arrêt sur la tige fémorale, et plus précisément dans une gorge ménagée dans cette tige fémorale. From French Patent Application No. 2,602,672, it is known to equip a femoral stem with a hoop or removable stopper, placed so as to ride this femoral stem at the junction of the mounting tail and the extramedullary extension. This jumper protrudes laterally from the femoral stem and can thus stop the sinking of the mounting tail in the medullary canal of a femur, by pressing on an edge that this femur has after being resected. An assembly screw, whose rod passes through the femoral stem, connects the two branches of the stopping rider to one another. It aims to keep the rider stop on the femoral stem, and more precisely in a groove in this femoral stem.
Notamment lorsque la personne équipée de la tige fémorale marche ou se tient debout, le cavalier d'arrêt est soumis à des efforts qui tendent à le faire basculer autour de la vis d'assemblage. Comme le cavalier est monté dans la gorge avec un léger jeu, seul le serrage, par la vis d'assemblage, des branches du cavalier sur la tige fémorale s'oppose généralement à ces forces. Cela n'est pas satisfaisant dans la mesure où les forces tendant à faire basculer le cavalier sont répétitives, alors que la tige fémorale est installée pour plusieurs années. Il existe un risque de micromouvements du cavalier par rapport à la tige fémorale et donc d'usure avec arrachement de particules de métal, ainsi qu'un risque de descellement de la prothèse au cours du temps. Especially when the person equipped with the femoral stem is walking or standing, the stop jumper is subjected to efforts that tend to tilt it around the cap screw. As the rider is mounted in the groove with a slight play, only the tightening, by the assembly screw, the branches of the rider on the femoral stem generally opposes these forces. This is unsatisfactory since the forces tending to tilt the rider are repetitive, while the femoral stem is installed for several years. There is a risk of micro-movements of the rider with respect to the femoral stem and therefore wear with tearing of metal particles, as well as a risk of loosening of the prosthesis over time.
Les mêmes types de problème peuvent se poser pour une tige humérale de prothèse pour l'articulation de l'épaule. The same types of problem can arise for a humeral prosthesis stem for the shoulder joint.
L'invention a donc pour but d'améliorer la fixation d'un arceau ou cavalier d'arrêt sur une tige fémorale ou humérale de prothèse pour l'articulation de la hanche ou de l'épaule et de fiabiliser l'implantation d'une telle prothèse. The object of the invention is therefore to improve the fixing of a hoop or stopping rider on a femoral or humeral prosthesis stem for the articulation of the hip or the shoulder and to make the implantation of an implant more reliable. such prosthesis.
A cet effet, l'invention a pour objet une tige fémorale ou humérale de prothèse pour l'articulation de la hanche ou de l'épaule, comportant une queue de montage destinée à être logée dans le canal médullaire d'un os long, ainsi qu'une extension extra-médullaire formant col prothétique, la tige ayant deux gorges dont chacune est délimitée au moins par une première surface formant bord du côté de l'extension extra-médullaire et par une deuxième surface formant fond, ladite tige étant apte à être équipée d'un cavalier d'arrêt saillant comportant deux branches que des moyens de serrage serrent sur lesdites deuxièmes surfaces, caractérisée en ce que lesdites deuxièmes surfaces sont inclinées l'une par rapport à l'autre de façon à se rapprocher l'une de l'autre en direction desdites premières surfaces, de telle manière que le serrage des branches du cavalier d'arrêt sur ces deuxièmes surfaces par les moyens de serrage provoque le glissement des branches vers les premières surfaces et l'appui des branches contre ces premières surfaces. For this purpose, the subject of the invention is a femoral or humeral prosthesis stem for the articulation of the hip or the shoulder, comprising a mounting tail intended to be housed in the medullary canal of a long bone, as well as an extra-medullary extension forming a prosthetic neck, the stem having two grooves each of which is delimited at least by a first surface forming an edge on the side of the extra-medullary extension and by a second surface forming a bottom, said stem being able to be equipped with a protruding stopper with two branches that clamping means clamp on said second surfaces, characterized in that said second surfaces are inclined relative to each other so as to approach one the other in the direction of said first surfaces, such that the tightening of the branches of the stop jumper on these second surfaces by the clamping means causes the sliding of the branches rs the first surfaces and the support of the branches against these first surfaces.
Selon d'autres caractéristiques avantageuses de cette 30 tige fémorale ou humérale: - les première et deuxième surfaces délimitant au moins partiellement l'une des gorges forment un dièdre; - les deuxièmes surfaces sont inclinées par rapport à un plan médian de l'extension extra-médullaire, de manière à se rapprocher de ce plan lorsqu'on se dirige vers lesdites premières surfaces; - l'angle (a) entre lesdites deuxièmes surfaces (20) est compris entre 0 et 30 . According to other advantageous features of this femoral or humeral stem: the first and second surfaces at least partially delimiting one of the grooves form a dihedron; the second surfaces are inclined with respect to a median plane of the extra-medullary extension, so as to approach this plane when moving towards said first surfaces; the angle (a) between said second surfaces (20) is between 0 and 30.
L'invention a également pour objet une prothèse pour l'articulation de la hanche ou de l'épaule, comportant: - une tige fémorale ou humérale, - un cavalier d'arrêt équipant cette tige de manière à être saillant, et - des moyens de serrage de deux branches du cavalier d'arrêt sur la tige, caractérisée en ce que la tige est telle que définie ci-dessus, les moyens de serrage serrant les deux branches du cavalier d'arrêt sur lesdites deuxièmes surfaces, les branches du cavalier d'arrêt étant en appui contre lesdites premières surfaces. The invention also relates to a prosthesis for the articulation of the hip or the shoulder, comprising: - a femoral or humeral stem, - a stopping rider equipping this stem so as to be salient, and - means clamping two branches of the stop jumper on the rod, characterized in that the rod is as defined above, the clamping means clamping the two branches of the jumper stop on said second surfaces, the branches of the rider stopping against the said first surfaces.
Selon d'autres caractéristiques avantageuses de cette prothèse pour l'articulation de la hanche ou de l'épaule: - chaque branche est pourvue d'une face supérieure épousant l'une des premières surfaces et d'une face interne épousant l'une des deuxièmes surfaces; - les moyens de serrage comportent une tige qui traverse un trou dans la tige fémorale ou humérale, dont chaque extrémité est assujettie à l'une des branches du cavalier d'arrêt et qui est sollicitée en traction; - la tige des moyens de serrage est la tige d'une vis de serrage et est partiellement vissée dans une des branches du cavalier, la tête de cette vis de serrage appuyant sur l'autre branche du cavalier; - une face interne d'une des branches du cavalier d'arrêt et une face interne de l'autre branche du cavalier d'arrêt épousent chacune l'une desdites deuxièmes surfaces et sont inclinées l'une par rapport à l'autre de façon à se rapprocher l'une de l'autre en direction de faces supérieures des branches, l'angle entre les faces internes des branches du cavalier d'arrêt et l'angle entre lesdites deuxièmes surfaces étant sensiblement égaux; et - les moyens de serrage exercent sur les branches du cavalier d'arrêt des forces de serrage sensiblement perpendiculaires à un plan qui passe entre les deuxièmes surfaces et dont ces deuxièmes surfaces se rapprochent en direction des premières surfaces. According to other advantageous features of this prosthesis for the articulation of the hip or the shoulder: - each branch is provided with an upper face marrying one of the first surfaces and an inner face marrying one of the second surfaces; the clamping means comprise a rod which passes through a hole in the femoral or humeral stem, each end of which is fastened to one of the branches of the stopping rider and which is urged in traction; the rod of the clamping means is the rod of a clamping screw and is partially screwed into one of the branches of the rider, the head of this clamping screw pressing on the other branch of the rider; an inner face of one of the branches of the stopping rider and an inner face of the other branch of the stopping rider each wedge one of said second surfaces and are inclined relative to one another so as to approaching one another towards upper faces of the branches, the angle between the inner faces of the branches of the stopping rider and the angle between said second surfaces being substantially equal; and - the clamping means exert on the branches of the stopping rider clamping forces substantially perpendicular to a plane which passes between the second surfaces and of which these second surfaces are approaching towards the first surfaces.
L'invention sera bien comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels: - la figure 1 est une vue en perspective d'une prothèse conforme à l'invention; - la figure 2 est une vue en perspective d'un cavalier constitutif de la prothèse représentée à la figure 1; - la figure 3 est une vue partielle, en perspective, d'une tige fémorale constitutive de la 20 prothèse de la figure 1; - la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3; et - la figure 5 est une vue analogue à la figure 4 et représente la tige des figures 3 et 4 munie du cavalier 25 représenté à la figure 2. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which: FIG. 1 is a perspective view of a prosthesis according to the invention; - Figure 2 is a perspective view of a jumper constituting the prosthesis shown in Figure 1; FIG. 3 is a partial view, in perspective, of a femoral stem constituting the prosthesis of FIG. 1; - Figure 4 is a sectional view along the line IV-IV of Figure 3; and - Figure 5 is a view similar to Figure 4 and shows the rod of Figures 3 and 4 provided with the jumper 25 shown in Figure 2.
Sur la figure 1 est représentée une prothèse pour l'articulation de la hanche. Une tige fémorale 1 de cette prothèse est munie d'un cavalier ou arceau d'arrêt 2 amovible. In Figure 1 is shown a prosthesis for the hip joint. A femoral stem 1 of this prosthesis is provided with a removable jumper or hoop 2.
Dans le présent texte et dans les revendications In this text and in the claims
annexées, les termes supérieur , inférieur , avant et arrière , ainsi que les termes analogues se réfèrent à l'orientation de la tige fémorale 1 lorsque la personne équipée de cette tige fémorale 1 est debout. Dans le cas d'une prothèse d'épaule, ces termes se réfèrent à l'orientation que possède la prothèse lorsque la personne équipée de cette prothèse est debout et laisse pendre ses bras le long du corps. Bien qu'on décrive une tige fémorale droite, une tige fémorale gauche ne sort pas du cadre de l'invention. appended, the terms upper, lower, front and back, and the like terms refer to the orientation of the femoral stem 1 when the person equipped with the femoral stem 1 is upright. In the case of a shoulder prosthesis, these terms refer to the orientation of the prosthesis when the person with this prosthesis is standing and hangs his arms along the body. Although a right femoral stem is described, a left femoral stem is not outside the scope of the invention.
Le cavalier 2, qui est représenté seul à la figure 2, comporte deux branches sensiblement parallèles 3 et 4, qu'un pontet 5 relie l'une à l'autre. La branche 3 est traversée de part en part par un trou 6, dans l'axe duquel un trou taraudé 7 de plus petit diamètre est ménagé dans la branche 4. Chaque branche 3 ou 4 présente quatre faces globalement planes, dont une interne, référencée 8, et une supérieure, référencée 9 et contiguë à la face 8. The jumper 2, which is shown alone in Figure 2, comprises two substantially parallel branches 3 and 4, a bridge 5 connects to one another. The branch 3 is traversed right through by a hole 6, in the axis of which a tapped hole 7 of smaller diameter is formed in the branch 4. Each branch 3 or 4 has four generally planar faces, including an internal, referenced 8, and a superior, referenced 9 and contiguous to the face 8.
La ligne discontinue référencée P1 à la figure 5 matérialise le plan médian qui passe entre les branches 3 et 4, à égale distance de ces dernières, et qui est perpendiculaire à l'axe commun X-X' des trous coaxiaux 6 et 7. The discontinuous line referenced P1 in FIG. 5 materializes the median plane which passes between the branches 3 and 4, equidistant from the latter, and which is perpendicular to the common axis X-X 'of the coaxial holes 6 and 7.
Les surfaces internes 8 sont inclinées d'un même angle a/2 par rapport à ce plan P1i de manière à se rapprocher de ce dernier lorsqu'on se dirige vers les surfaces supérieures 9. Il s'ensuit qu'elles sont inclinées l'une par rapport à l'autre d'un angle a. The internal surfaces 8 are inclined at the same angle α / 2 with respect to this plane P1i so as to be closer to the latter when moving towards the upper surfaces 9. It follows that they are inclined the one with respect to the other by an angle a.
Les extrémités libres des branches 3 et 4 forment conjointement un convergent destiné à faciliter la mise en place du cavalier 2 sur la tige fémorale 1. The free ends of the branches 3 and 4 together form a convergent intended to facilitate the introduction of the rider 2 on the femoral stem 1.
La tige fémorale 1 comporte une queue inférieure de montage 10 et une extension supérieure extra-médullaire 11. The femoral stem 1 comprises a lower mounting shank 10 and an extra medullary superior extension 11.
La queue de montage 10, qui est destinée à être ancrée dans le canal médullaire d'un fémur non représenté, peut être conformée de diverses manières, de préférence de façon à être le plus en contact possible avec la paroi interne du fémur. Elle présente un bord interne 12 et un bord externe 13, qui relient l'une à l'autre une face avant 14 et une face arrière 15 de cette queue de montage 10. The mounting tail 10, which is intended to be anchored in the medullary canal of a not shown femur, may be shaped in various ways, preferably so as to be as close as possible to the inner wall of the femur. It has an inner edge 12 and an outer edge 13, which connect to each other a front face 14 and a rear face 15 of this mounting tail 10.
L'extension extra-médullaire 11 est destinée à former un col prothétique et à être coiffée d'une tête globalement sphérique 30 représentée uniquement en traits mixtes à la figure 1 et destinée à coopérer avec une surface concave d'articulation anatomique ou prothétique. The extra-medullary extension 11 is intended to form a prosthetic neck and to be capped with a generally spherical head 30 shown only in phantom in Figure 1 and intended to cooperate with a concave surface of anatomical or prosthetic articulation.
On se réfère maintenant plus particulièrement aux figures 3 et 4. Une gorge rectiligne avant 16 et une gorge rectiligne arrière 17 ont été ménagées obliquement par rapport à l'axe longitudinal Z-Z' de la queue 10, dans la tige fémorale 1, à la jonction de la queue de montage 10 et de l'extension extra-médullaire 11, de manière à être parallèles l'une à l'autre. Chacune de ces gorges 16 et 17 est délimitée conjointement par un dièdre D et par une surface inférieure 19 tournée sensiblement vers l'extension extra-médullaire 11. Chaque dièdre D est formé par deux surfaces planes, à savoir une surface supérieure 18 et une surface de fond 20. La surface supérieure 18 forme un bord de la gorge considérée 16 ou 17, du côté de l'extension extra-médullaire 11, et elle est tournée sensiblement vers la queue de montage 10. La surface 20 forme le fond de la gorge considérée 16 ou 17, et elle est tournée sensiblement vers l'arrière ou vers l'avant selon qu'elle se trouve au niveau de la gorge arrière 17 ou de la gorge avant 16. Referring now more particularly to FIGS. 3 and 4, a rectilinear groove before 16 and a rectilinear rear groove 17 have been formed obliquely with respect to the longitudinal axis ZZ 'of the shank 10, in the femoral stem 1, at the junction of the mounting stem 10 and the extra medullary extension 11, so as to be parallel to each other. Each of these grooves 16 and 17 is delimited jointly by a dihedron D and by a lower surface 19 turned substantially towards the extra-medullary extension 11. Each dihedron D is formed by two flat surfaces, namely an upper surface 18 and a surface 20. The upper surface 18 forms an edge of the groove in question 16 or 17, on the side of the extra-medullary extension 11, and is turned substantially towards the mounting tail 10. The surface 20 forms the bottom of the groove. considered groove 16 or 17, and it is turned substantially towards the rear or towards the front depending on whether it is at the level of the rear groove 17 or the front groove 16.
Un trou traversant 21 pour le passage de la tige 22 d'une vis de serrage 23 est percé dans la tige fémorale 1, de manière à déboucher au niveau des deux surfaces de fond 20. La tête de la vis 23 est référencée 24 à la figure 5. A through hole 21 for the passage of the rod 22 of a clamping screw 23 is pierced in the femoral stem 1, so as to open at the two bottom surfaces 20. The head of the screw 23 is referenced 24 at the figure 5.
La ligne discontinue référencée P2 aux figures 4 et 5 matérialise le plan médian de l'extension 11, qui passe entre les deux surfaces de fond 20, à égale distance de celles-ci, et qui est perpendiculaire à l'axe antéropostérieur Y-Y' du trou 21 et à la tige 22 de la vis 23, une fois cette dernière en place. The discontinuous line referenced P2 in FIGS. 4 and 5 materializes the median plane of the extension 11, which passes between the two bottom surfaces 20, equidistant from them, and which is perpendicular to the anteroposterior axis YY 'of the hole 21 and the rod 22 of the screw 23, once the latter in place.
Les surfaces de fond 20 sont inclinées de l'angle a/2 par rapport à ce plan P2, de manière à se rapprocher de celui-ci lorsqu'on se dirige vers les surfaces supérieures 18. Elles sont donc inclinées l'une par rapport à l'autre de l'angle a et se rapprochent l'une de l'autre lorsqu'on se dirige vers les surfaces supérieures 18. The bottom surfaces 20 are inclined at the angle a / 2 with respect to this plane P2, so as to approach it when moving towards the upper surfaces 18. They are therefore inclined relative to one another. at the other end of the angle a and approach each other when moving towards the upper surfaces 18.
L'installation du cavalier 2 sur la tige fémorale 1 commence par le coulissement des branches 3 et 4 dans les gorges avant 16 et arrière 17. Elle se poursuit par l'insertion de la tige 22 de la vis 23 dans le trou 6 puis dans le trou 11, et se termine par le vissage de cette tige 22 dans le trou taraudé 7 jusqu'au serrage des branches 3 et 4 sur les surfaces de fond 20. Ce serrage provoque le glissement (flèches G) des branches 3 et 4 vers les surfaces supérieures 18, du fait de l'inclinaison des surfaces de fond 20. Par conséquent, lorsqu'elles ont été suffisamment serrées sur la tige fémorale 2 par la vis 23, les branches 3 et 4 sont telles qu'illustrées à la figure 5 et sont bloquées angulairement et transversalement aux gorges 16 et 17, contre les surfaces supérieures 18, conformément au but de l'invention. The installation of the jumper 2 on the femoral stem 1 begins with the sliding of the branches 3 and 4 in the grooves before 16 and rear 17. It continues by inserting the rod 22 of the screw 23 into the hole 6 and then into the hole 11, and ends by the screwing of this rod 22 in the threaded hole 7 until tightening the branches 3 and 4 on the bottom surfaces 20. This clamping causes the sliding (arrows G) branches 3 and 4 to the upper surfaces 18, because of the inclination of the bottom surfaces 20. Therefore, when they have been sufficiently tightened on the femoral stem 2 by the screw 23, the branches 3 and 4 are as illustrated in FIG. 5 and are locked angularly and transversely to the grooves 16 and 17, against the upper surfaces 18, in accordance with the purpose of the invention.
Comme la tige 22 de la vis 23, les forces de serrage F 25 et -F exercées par cette vis 23 sont sensiblement perpendiculaires au plan P2. Like the rod 22 of the screw 23, the clamping forces F 25 and -F exerted by this screw 23 are substantially perpendicular to the plane P2.
On notera que le glissement des branches 3 et 4 vers les surfaces supérieures 18 est facilité par le fait que l'angle a entre les faces internes 8 des branches 3 et 4 a sensiblement la même mesure que l'angle a entre les surfaces de fond 20. It will be noted that the sliding of the branches 3 and 4 towards the upper surfaces 18 is facilitated by the fact that the angle α between the inner faces 8 of the branches 3 and 4 has substantially the same extent as the angle α between the bottom surfaces. 20.
En pratique, l'angle a peut avoir une valeur comprise entre 0 et 30 , de préférence entre 5 et 20 . Une valeur 10 a donné des résultats tout à fait satisfaisants. In practice, the angle α may have a value between 0 and 30, preferably between 5 and 20. A value of 10 gave quite satisfactory results.
Une fois installé, le cavalier 2 enfourche la tige fémorale 1 et dépasse latéralement de celle-ci, notamment au niveau de son bord interne 12. Il peut donc s'appuyer sur un bord du fémur, là où se dernier a été sectionné. Once installed, the rider 2 straddles the femoral stem 1 and protrudes laterally thereof, particularly at its inner edge 12. It can therefore rest on an edge of the femur where the last was cut.
Le cavalier 2 peut être montée sur la tige fémorale 1, avant que cette dernière soit implantée dans un fémur. The rider 2 can be mounted on the femoral stem 1, before the latter is implanted in a femur.
Procéder dans l'ordre inverse est également possible. Par exemple, le cavalier 2 peut n'être rapporté qu'après que la tige fémorale 1 a été installée dans le fémur et que, si ceci s'est avéré nécessaire, ce fémur a été de nouveau réséqué. En opérant ainsi, on peut s'assurer que la tige fémorale 2 a été enfoncée au maximum dans le fémur. Proceed in reverse order is also possible. For example, the rider 2 can be reported only after the femoral stem 1 has been installed in the femur and, if this proved necessary, this femur was resected again. By doing so, it can be ensured that the femoral stem 2 has been pushed as far as possible into the femur.
L'invention ne se limite pas au mode de réalisation décrit précédemment. En particulier, les gorges 16 et 17 peuvent se rejoindre au niveau du bord interne 12. The invention is not limited to the embodiment described above. In particular, the grooves 16 and 17 can meet at the inner edge 12.
Egalement, une prothèse pour l'articulation de l'épaule et une tige humérale d'une telle prothèse ne sortent pas du cadre de l'invention. Also, a prosthesis for the shoulder joint and a humeral stem of such a prosthesis are not outside the scope of the invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR0315288A FR2863866B1 (en) | 2003-12-23 | 2003-12-23 | FEMALE OR HUMERAL ROD AND PROSTHESIS FOR THE ARTICULATION OF THE HIP OR SHOULDER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR0315288A FR2863866B1 (en) | 2003-12-23 | 2003-12-23 | FEMALE OR HUMERAL ROD AND PROSTHESIS FOR THE ARTICULATION OF THE HIP OR SHOULDER |
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FR2863866A1 true FR2863866A1 (en) | 2005-06-24 |
FR2863866B1 FR2863866B1 (en) | 2006-01-27 |
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FR0315288A Expired - Fee Related FR2863866B1 (en) | 2003-12-23 | 2003-12-23 | FEMALE OR HUMERAL ROD AND PROSTHESIS FOR THE ARTICULATION OF THE HIP OR SHOULDER |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2263612A1 (en) * | 2009-06-18 | 2010-12-22 | Jean-Claude Cartillier | Hip prosthesis |
FR3020941A1 (en) * | 2014-05-15 | 2015-11-20 | T O | FEMALE ROD WITH INTERNAL SUPPORT FLANGE |
EP3187152A1 (en) * | 2015-12-31 | 2017-07-05 | DePuy Synthes Products, LLC | Modular femoral prosthesis system for hip arthroplasty |
US11351034B2 (en) | 2019-09-30 | 2022-06-07 | DePuy Synthes Products, Inc. | Patient specific femoral prosthesis |
US11576787B2 (en) | 2019-09-30 | 2023-02-14 | DePuy Synthes Products, Inc. | Patient specific femoral prosthesis |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9962261B1 (en) * | 2012-10-19 | 2018-05-08 | Aptis Medical, Llc | Prosthesis including ball and socket arrangement |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2602672A1 (en) * | 1986-08-13 | 1988-02-19 | Yves Marquer | Femoral prosthesis intended to be housed in the diaphysial canal of a femur |
US4908036A (en) * | 1987-06-15 | 1990-03-13 | Waldemar Link Gmbh & Co. | Endoprosthesis |
-
2003
- 2003-12-23 FR FR0315288A patent/FR2863866B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2602672A1 (en) * | 1986-08-13 | 1988-02-19 | Yves Marquer | Femoral prosthesis intended to be housed in the diaphysial canal of a femur |
US4908036A (en) * | 1987-06-15 | 1990-03-13 | Waldemar Link Gmbh & Co. | Endoprosthesis |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2263612A1 (en) * | 2009-06-18 | 2010-12-22 | Jean-Claude Cartillier | Hip prosthesis |
FR2946861A1 (en) * | 2009-06-18 | 2010-12-24 | Jean Claude Cartillier | HIP PROSTHESIS. |
FR3020941A1 (en) * | 2014-05-15 | 2015-11-20 | T O | FEMALE ROD WITH INTERNAL SUPPORT FLANGE |
EP3187152A1 (en) * | 2015-12-31 | 2017-07-05 | DePuy Synthes Products, LLC | Modular femoral prosthesis system for hip arthroplasty |
US10251752B2 (en) | 2015-12-31 | 2019-04-09 | DePuy Synthes Products, Inc. | Modular femoral prosthesis system for hip arthroplasty |
US11351034B2 (en) | 2019-09-30 | 2022-06-07 | DePuy Synthes Products, Inc. | Patient specific femoral prosthesis |
US11576787B2 (en) | 2019-09-30 | 2023-02-14 | DePuy Synthes Products, Inc. | Patient specific femoral prosthesis |
Also Published As
Publication number | Publication date |
---|---|
FR2863866B1 (en) | 2006-01-27 |
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