CA2287483A1 - A modular spinal plate - Google Patents

A modular spinal plate Download PDF

Info

Publication number
CA2287483A1
CA2287483A1 CA002287483A CA2287483A CA2287483A1 CA 2287483 A1 CA2287483 A1 CA 2287483A1 CA 002287483 A CA002287483 A CA 002287483A CA 2287483 A CA2287483 A CA 2287483A CA 2287483 A1 CA2287483 A1 CA 2287483A1
Authority
CA
Canada
Prior art keywords
modular
spinal plate
load
coupling elements
slots
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
CA002287483A
Other languages
French (fr)
Other versions
CA2287483C (en
Inventor
Joseph P. Errico
Thomas J. Errico
James D. Ralph
Steven Tatar
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.)
K2 Medical LLC
Original Assignee
Techsys Medical, L.L.C.
Joseph P. Errico
Thomas J. Errico
James D. Ralph
Steven Tatar
Third Millennium Engineering, Llc
K2 Medical, Llc
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 Techsys Medical, L.L.C., Joseph P. Errico, Thomas J. Errico, James D. Ralph, Steven Tatar, Third Millennium Engineering, Llc, K2 Medical, Llc filed Critical Techsys Medical, L.L.C.
Publication of CA2287483A1 publication Critical patent/CA2287483A1/en
Application granted granted Critical
Publication of CA2287483C publication Critical patent/CA2287483C/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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
    • 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
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7007—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
    • 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
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/701—Longitudinal elements with a non-circular, e.g. rectangular, cross-section
    • 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
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped

Abstract

A modular spinal plate assembly for use with modular polyaxial pedicle screw implant devices (102) includes a track portion having a pair of parallel rails (152a, 152b) and a multiplicity of compressible coupling elements (122), each having a through hole through which a post portion (112) of a modular polyaxial screw (102) may be mounted. The coupling elements (122) include slots, oppositely oriented, on either side of the element, which slots may be compressed to effectuate the deflection and compaction of the coupling element when a compressive load is applied. This load is applied by a top locking nut (220). The load causes the coupling element (122) to be compression locked to the rails (152a, 152b).
CA002287483A 1997-05-01 1998-04-30 A modular spinal plate Expired - Fee Related CA2287483C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/846,473 1997-05-01
US08/846,473 US5800435A (en) 1996-10-09 1997-05-01 Modular spinal plate for use with modular polyaxial locking pedicle screws
PCT/US1998/008707 WO1998048719A1 (en) 1997-05-01 1998-04-30 A modular spinal plate

Publications (2)

Publication Number Publication Date
CA2287483A1 true CA2287483A1 (en) 1998-11-05
CA2287483C CA2287483C (en) 2007-01-16

Family

ID=25298048

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002287483A Expired - Fee Related CA2287483C (en) 1997-05-01 1998-04-30 A modular spinal plate

Country Status (10)

Country Link
US (1) US5800435A (en)
EP (1) EP1014878B1 (en)
JP (2) JP3999279B2 (en)
KR (1) KR100544373B1 (en)
AT (1) ATE326909T1 (en)
AU (1) AU746961B2 (en)
CA (1) CA2287483C (en)
DE (1) DE69834648T2 (en)
ES (1) ES2268772T3 (en)
WO (1) WO1998048719A1 (en)

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