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WO2009042489A3 - Dynamic rod - Google Patents

Dynamic rod Download PDF

Info

Publication number
WO2009042489A3
WO2009042489A3 PCT/US2008/076815 US2008076815W WO2009042489A3 WO 2009042489 A3 WO2009042489 A3 WO 2009042489A3 US 2008076815 W US2008076815 W US 2008076815W WO 2009042489 A3 WO2009042489 A3 WO 2009042489A3
Authority
WO
WIPO (PCT)
Prior art keywords
rod
engaging portion
bias
spine
deflection
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/US2008/076815
Other languages
French (fr)
Other versions
WO2009042489A2 (en
Inventor
Moti Altarac
Joey Camia Reglos
Stanley Kyle Hayes
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
Priority claimed from US10/970,366 external-priority patent/US8162985B2/en
Priority claimed from US11/436,407 external-priority patent/US8025680B2/en
Priority claimed from US11/427,738 external-priority patent/US7935134B2/en
Priority claimed from US12/154,540 external-priority patent/US20080262554A1/en
Priority to EP08833450A priority Critical patent/EP2194897A4/en
Application filed by VertiFlex Inc filed Critical VertiFlex Inc
Priority to CA2700324A priority patent/CA2700324A1/en
Priority to AU2008304661A priority patent/AU2008304661A1/en
Priority claimed from US12/233,212 external-priority patent/US20090030465A1/en
Publication of WO2009042489A2 publication Critical patent/WO2009042489A2/en
Publication of WO2009042489A3 publication Critical patent/WO2009042489A3/en
Priority to IL204597A priority patent/IL204597A0/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
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in 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
    • 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
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
    • A61B17/64—Devices extending alongside the bones to be positioned
    • A61B17/6491—Devices extending alongside the bones to be positioned allowing small-scale motion of bone ends
    • 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
    • A61B17/7026—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form
    • A61B17/7028—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form the flexible part being a coil spring
    • 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
    • A61B17/7031—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other made wholly or partly of flexible material

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 rod fixes the adjacent vertebral bodies dynamically providing immediate postoperative stability and support of the spine. The rod comprises a first rod portion having a first engaging portion connected to a second rod portion having a second engaging portion. The rod includes at least a one bias element configured to bias a deflection or translation of the first rod portion relative to the second rod portion. The first engaging portion includes at least one side or integral spring formed in the first engaging portion to bias a deflection of the second rod portion relative to the first rod portion. The rod permits relative movement of the first and second rod portions allowing the rod to carry some of the natural flexion and extension moments that the spine is subject to.
PCT/US2008/076815 2004-10-20 2008-09-18 Dynamic rod Ceased WO2009042489A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2008304661A AU2008304661A1 (en) 2007-09-21 2008-09-18 Dynamic rod
CA2700324A CA2700324A1 (en) 2007-09-21 2008-09-18 Dynamic rod
EP08833450A EP2194897A4 (en) 2007-09-21 2008-09-18 DYNAMIC BAR
IL204597A IL204597A0 (en) 2007-09-21 2010-03-18 Dynamic rod

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US10/970,366 US8162985B2 (en) 2004-10-20 2004-10-20 Systems and methods for posterior dynamic stabilization of the spine
US11/006,495 US8075595B2 (en) 2004-10-20 2004-12-06 Systems and methods for posterior dynamic stabilization of the spine
US11/033,452 US7998175B2 (en) 2004-10-20 2005-01-10 Systems and methods for posterior dynamic stabilization of the spine
US11/436,407 US8025680B2 (en) 2004-10-20 2006-05-17 Systems and methods for posterior dynamic stabilization of the spine
US11/427,738 US7935134B2 (en) 2004-10-20 2006-06-29 Systems and methods for stabilization of bone structures
US93181107P 2007-05-25 2007-05-25
US99489907P 2007-09-21 2007-09-21
US60/994,899 2007-09-21
US12/154,540 US20080262554A1 (en) 2004-10-20 2008-05-23 Dyanamic rod
US12/233,212 US20090030465A1 (en) 2004-10-20 2008-09-18 Dynamic rod

Publications (2)

Publication Number Publication Date
WO2009042489A2 WO2009042489A2 (en) 2009-04-02
WO2009042489A3 true WO2009042489A3 (en) 2009-05-22

Family

ID=56291091

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/076815 Ceased WO2009042489A2 (en) 2004-10-20 2008-09-18 Dynamic rod

Country Status (1)

Country Link
WO (1) WO2009042489A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8025680B2 (en) 2004-10-20 2011-09-27 Exactech, Inc. Systems and methods for posterior dynamic stabilization of the spine
US7935134B2 (en) 2004-10-20 2011-05-03 Exactech, Inc. Systems and methods for stabilization of bone structures
US8267969B2 (en) 2004-10-20 2012-09-18 Exactech, Inc. Screw systems and methods for use in stabilization of bone structures
US8162985B2 (en) 2004-10-20 2012-04-24 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US8226690B2 (en) 2005-07-22 2012-07-24 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for stabilization of bone structures
US8523865B2 (en) 2005-07-22 2013-09-03 Exactech, Inc. Tissue splitter
US8096996B2 (en) 2007-03-20 2012-01-17 Exactech, Inc. Rod reducer
US20120143257A1 (en) * 2010-12-02 2012-06-07 Spartek Medical, Inc. Low profile spinal prosthesis incorporating a cannulated bone anchor having a deflectable post and a compound spinal rod
US11583318B2 (en) 2018-12-21 2023-02-21 Paradigm Spine, Llc Modular spine stabilization system and associated instruments

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095154A1 (en) * 2000-04-04 2002-07-18 Atkinson Robert E. Devices and methods for the treatment of spinal disorders
US20040236328A1 (en) * 2003-05-23 2004-11-25 Paul David C. Spine stabilization system
US20050065514A1 (en) * 2001-12-07 2005-03-24 Armin Studer Damping element
US20060282080A1 (en) * 2005-06-08 2006-12-14 Accin Corporation Vertebral facet stabilizer
EP1810624A1 (en) * 2006-01-24 2007-07-25 BIEDERMANN MOTECH GmbH Connecting rod with external adjustment element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095154A1 (en) * 2000-04-04 2002-07-18 Atkinson Robert E. Devices and methods for the treatment of spinal disorders
US20050065514A1 (en) * 2001-12-07 2005-03-24 Armin Studer Damping element
US20040236328A1 (en) * 2003-05-23 2004-11-25 Paul David C. Spine stabilization system
US20060282080A1 (en) * 2005-06-08 2006-12-14 Accin Corporation Vertebral facet stabilizer
EP1810624A1 (en) * 2006-01-24 2007-07-25 BIEDERMANN MOTECH GmbH Connecting rod with external adjustment element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2194897A4 *

Also Published As

Publication number Publication date
WO2009042489A2 (en) 2009-04-02

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