CA2326240A1 - Bone plate with bone screw securing means - Google Patents

Bone plate with bone screw securing means

Info

Publication number
CA2326240A1
CA2326240A1 CA002326240A CA2326240A CA2326240A1 CA 2326240 A1 CA2326240 A1 CA 2326240A1 CA 002326240 A CA002326240 A CA 002326240A CA 2326240 A CA2326240 A CA 2326240A CA 2326240 A1 CA2326240 A1 CA 2326240A1
Authority
CA
Canada
Prior art keywords
plate
slide
bone
screws
slidable
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
CA002326240A
Other languages
French (fr)
Other versions
CA2326240C (en
Inventor
Richard Assaker
Richard-Laurent Minfelde
Jean-Francois D'amore
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.)
Societe de Fabrication de Material Orthopedique en Abrege SOFAMOR SNC
Original Assignee
Societe De Fabrication De Materiel Orthopedique - Sofamor
Richard Assaker
Richard-Laurent Minfelde
Jean-Francois D'amore
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 Societe De Fabrication De Materiel Orthopedique - Sofamor, Richard Assaker, Richard-Laurent Minfelde, Jean-Francois D'amore filed Critical Societe De Fabrication De Materiel Orthopedique - Sofamor
Publication of CA2326240A1 publication Critical patent/CA2326240A1/en
Application granted granted Critical
Publication of CA2326240C publication Critical patent/CA2326240C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A61B17/8042—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being a cover over the screw head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7059—Cortical plates

Abstract

Implant for the cervical spine comprising an anterior plate (1) for maintaining a bone graft, bone anchorage screws (6, 7, 8) for the plate and means (22) for blocking the screws and preventing any migration of the screws, characterized in that the blocking means comprises at least one slide (22) slidably mounted on the plate so as to be applicable on at least one anchorage screw head (15, 16). The slide cooperates with means (33, 34) for retaining the slide on the head of the screw. The slide may be formed by a thin platelet (22a) which is provided with lateral flanges (25) and is slidable in a complementary cavity (18) provided in the plate (1) while being flush with the surface of the plate (1). The plate (1) includes ramps (26) for retaining the slide (22) on which the flanges (25) are slidable, the slide (22) being slidable to a position in which it at least partly overlaps the heads of the associated screws (6 or 7) and is locked in position by suitable means.
CA002326240A 1998-04-30 1999-04-30 Bone plate with bone screw securing means Expired - Fee Related CA2326240C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR98/05558 1998-04-30
FR9805558A FR2778088B1 (en) 1998-04-30 1998-04-30 ANTERIOR IMPLANT, PARTICULARLY FOR THE CERVICAL RACHIS
PCT/IB1999/000794 WO1999056653A1 (en) 1998-04-30 1999-04-30 Bone plate with bone screw securing means

Publications (2)

Publication Number Publication Date
CA2326240A1 true CA2326240A1 (en) 1999-11-11
CA2326240C CA2326240C (en) 2006-01-10

Family

ID=9525953

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002326240A Expired - Fee Related CA2326240C (en) 1998-04-30 1999-04-30 Bone plate with bone screw securing means

Country Status (11)

Country Link
US (4) US6652525B1 (en)
EP (1) EP1075226B1 (en)
JP (1) JP4195194B2 (en)
AT (1) ATE261272T1 (en)
AU (1) AU748538B2 (en)
CA (1) CA2326240C (en)
DE (1) DE69915464T2 (en)
ES (1) ES2216500T3 (en)
FR (1) FR2778088B1 (en)
PT (1) PT1075226E (en)
WO (1) WO1999056653A1 (en)

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* Cited by examiner, † Cited by third party
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JP4195194B2 (en) 2008-12-10
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FR2778088A1 (en) 1999-11-05
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US8016864B2 (en) 2011-09-13
ATE261272T1 (en) 2004-03-15
US20110270311A1 (en) 2011-11-03
DE69915464T2 (en) 2004-12-23
AU3341899A (en) 1999-11-23
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CA2326240C (en) 2006-01-10
EP1075226A1 (en) 2001-02-14

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