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WO2010019791A3 - Dynamic rod - Google Patents

Dynamic rod Download PDF

Info

Publication number
WO2010019791A3
WO2010019791A3 PCT/US2009/053740 US2009053740W WO2010019791A3 WO 2010019791 A3 WO2010019791 A3 WO 2010019791A3 US 2009053740 W US2009053740 W US 2009053740W WO 2010019791 A3 WO2010019791 A3 WO 2010019791A3
Authority
WO
WIPO (PCT)
Prior art keywords
rod
dynamic
retainer
rod portion
spine
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.)
Ceased
Application number
PCT/US2009/053740
Other languages
French (fr)
Other versions
WO2010019791A2 (en
Inventor
Stanley Kyle Hayes
Joey Camia Reglos
Moti Altarac
Daniel H. Kim
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.)
VertiFlex Inc
Original Assignee
VertiFlex Inc
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 VertiFlex Inc filed Critical VertiFlex Inc
Priority to EP09807301A priority Critical patent/EP2320815A2/en
Publication of WO2010019791A2 publication Critical patent/WO2010019791A2/en
Publication of WO2010019791A3 publication Critical patent/WO2010019791A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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 or setting implements
    • 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, e.g. 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
    • A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
    • A61B17/7023—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a pivot joint
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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, e.g. 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
    • A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
    • A61B17/7025—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a sliding joint
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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, e.g. 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

A dynamic rod implantable into a patient and connectable between two vertebral anchors in adjacent vertebral bodies is provided. The dynamic rod fixes the adjacent vertebral bodies together in a dynamic fashion providing immediate postoperative stability and support of the spine. The dynamic rod comprises a first rod portion dynamically connected to a second rod portion at a retainer that has separate chambers for receiving rod portions. One rod portion is configured for longitudinal movement and the other rod portion is configured for polyaxial angulation relative to the retainer. The dynamic rod is configured such that the retainer is located proximate to one of the facet joints when implanted into a patient. The dynamic rod permits relative movement of the first and second rod portions allowing the rod to carry some of the natural flexion, extension and rotation moments of the spine.
PCT/US2009/053740 2008-08-14 2009-08-13 Dynamic rod Ceased WO2010019791A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09807301A EP2320815A2 (en) 2008-08-14 2009-08-13 Dynamic rod

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18897608P 2008-08-14 2008-08-14
US61/188,976 2008-08-14

Publications (2)

Publication Number Publication Date
WO2010019791A2 WO2010019791A2 (en) 2010-02-18
WO2010019791A3 true WO2010019791A3 (en) 2010-05-14

Family

ID=41669687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/053740 Ceased WO2010019791A2 (en) 2008-08-14 2009-08-13 Dynamic rod

Country Status (3)

Country Link
US (1) US20100036423A1 (en)
EP (1) EP2320815A2 (en)
WO (1) WO2010019791A2 (en)

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