CA2116423A1 - Device for Setting a Spline - Google Patents

Device for Setting a Spline

Info

Publication number
CA2116423A1
CA2116423A1 CA2116423A CA2116423A CA2116423A1 CA 2116423 A1 CA2116423 A1 CA 2116423A1 CA 2116423 A CA2116423 A CA 2116423A CA 2116423 A CA2116423 A CA 2116423A CA 2116423 A1 CA2116423 A1 CA 2116423A1
Authority
CA
Canada
Prior art keywords
aperture
receiving
shaft portion
head
anchoring element
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
CA2116423A
Other languages
French (fr)
Other versions
CA2116423C (en
Inventor
Peter Metz-Stavenhagen
Bernd Robioneck
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.)
Stryker Trauma GmbH
Original Assignee
Peter Metz-Stavenhagen
Bernd Robioneck
Howmedica Gmbh
Stryker Spine S.A.
Stryker Trauma Gmbh
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 Peter Metz-Stavenhagen, Bernd Robioneck, Howmedica Gmbh, Stryker Spine S.A., Stryker Trauma Gmbh filed Critical Peter Metz-Stavenhagen
Publication of CA2116423A1 publication Critical patent/CA2116423A1/en
Application granted granted Critical
Publication of CA2116423C publication Critical patent/CA2116423C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B17/7035—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
    • 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
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • 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
    • A61B17/7056—Hooks with specially-designed bone-contacting part
    • 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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • 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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The present invention relates to a device for setting a spline having damaged vertebras, comprising an anchoring element including a shaft portion (16) to be attached to spaced vertebras, the free end of said anchoring element including a slot (24) for receiving a distracting or, respectively, compressing bar (40), and a cap nut (42) to be screwed onto an outer thread (32) provided in theregion of the receiving slot to urge an axial fixing portion (44) towards the bar received in said receiving slot. The invention is defined in that receiving slot (24) is formed in a separate swivel head (20) including an inner end in the shape of a ball receiving portion (24) which has an aperture (28) through which said shaft portion (16;52) of the anchoring element (10;50) extends, wherein the diameter of the shaft portion adjacent said aperture is smaller than that of said aperture (28), and that a ball head (14;56) is provided at the end of the shaft portion (16;52), said ball head having a diameter larger than that of said aperture (28) and saidball head (14;56) in the ball receiving portion (24) entering the terminal region of said receiving slot (24).
CA002116423A 1993-02-25 1994-02-24 Device for setting a spline Expired - Lifetime CA2116423C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9302700U DE9302700U1 (en) 1993-02-25 1993-02-25
DEG9302700.1 1993-02-25

Publications (2)

Publication Number Publication Date
CA2116423A1 true CA2116423A1 (en) 1994-08-26
CA2116423C CA2116423C (en) 1998-11-17

Family

ID=6889829

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002116423A Expired - Lifetime CA2116423C (en) 1993-02-25 1994-02-24 Device for setting a spline

Country Status (6)

Country Link
US (1) US5476464A (en)
EP (1) EP0613664B1 (en)
JP (1) JP2549826B2 (en)
AT (1) ATE200730T1 (en)
CA (1) CA2116423C (en)
DE (2) DE9302700U1 (en)

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ATE200730T1 (en) 2001-05-15
DE9302700U1 (en) 1993-04-08
DE69330178T2 (en) 2001-09-13
DE69330178D1 (en) 2001-05-31
JP2549826B2 (en) 1996-10-30
US5476464A (en) 1995-12-19
EP0613664A2 (en) 1994-09-07
CA2116423C (en) 1998-11-17
EP0613664A3 (en) 1995-04-19
EP0613664B1 (en) 2001-04-25
JPH0759795A (en) 1995-03-07

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