WO2006127992A8 - Low profile pedicle screw and rod assembly - Google Patents

Low profile pedicle screw and rod assembly

Info

Publication number
WO2006127992A8
WO2006127992A8 PCT/US2006/020416 US2006020416W WO2006127992A8 WO 2006127992 A8 WO2006127992 A8 WO 2006127992A8 US 2006020416 W US2006020416 W US 2006020416W WO 2006127992 A8 WO2006127992 A8 WO 2006127992A8
Authority
WO
WIPO (PCT)
Prior art keywords
rod
pedicle screw
tulip
assembly
low profile
Prior art date
Application number
PCT/US2006/020416
Other languages
French (fr)
Other versions
WO2006127992A2 (en
WO2006127992A3 (en
Inventor
Michael D Ensign
David T Hawkes
Original Assignee
Alphaspine 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 Alphaspine Inc filed Critical Alphaspine Inc
Priority to JP2008513756A priority Critical patent/JP2008541880A/en
Priority to EP06771279A priority patent/EP1883359A2/en
Publication of WO2006127992A2 publication Critical patent/WO2006127992A2/en
Publication of WO2006127992A3 publication Critical patent/WO2006127992A3/en
Publication of WO2006127992A8 publication Critical patent/WO2006127992A8/en

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
    • A61B17/7032—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
    • A61B17/7001—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 pedicle screw (16, 42) and rod (20, 56) assembly is provided which has a low profile in the final assembled position. The pedicle screw (16, 42) includes a screw (16, 42) having a threaded portion (44) and a head portion (46). A tulip (22, 48) is positioned on the head portion (46) of the screw (16, 42). A fastener assembly (52) is coupled to the tulip (22, 48) and positioned to retain the tulip (22, 48) on the head portion (46). A rod retainer member (54) is positioned inside the tulip (22, 48) and grips the rod (20, 56), to hold it in position relative to the tulip assembly (22, 48) and pedicle screw (16, 42). The top of rod retaining member (54) is approximately equal in height to, or lower than the rod (20, 56) itself. This provides a low profile pedicle screw (16, 42) and rod assembly since the rod (20, 56) itself will normally be the uppermost member of the completed assembly.
PCT/US2006/020416 2005-05-25 2006-05-25 Low profile pedicle screw and rod assembly WO2006127992A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008513756A JP2008541880A (en) 2005-05-25 2006-05-25 Pedicle screw and rod assembly
EP06771279A EP1883359A2 (en) 2005-05-25 2006-05-25 Low profile pedicle screw and rod assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68469505P 2005-05-25 2005-05-25
US60/684,695 2005-05-25

Publications (3)

Publication Number Publication Date
WO2006127992A2 WO2006127992A2 (en) 2006-11-30
WO2006127992A3 WO2006127992A3 (en) 2007-09-13
WO2006127992A8 true WO2006127992A8 (en) 2008-01-24

Family

ID=37452882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/020416 WO2006127992A2 (en) 2005-05-25 2006-05-25 Low profile pedicle screw and rod assembly

Country Status (4)

Country Link
US (1) US8100947B2 (en)
EP (1) EP1883359A2 (en)
JP (1) JP2008541880A (en)
WO (1) WO2006127992A2 (en)

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US9314346B2 (en) 2007-02-12 2016-04-19 Brigham Young University Spinal implant
US9333008B2 (en) 2010-02-19 2016-05-10 Brigham Young University Serpentine spinal stability device

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US9314346B2 (en) 2007-02-12 2016-04-19 Brigham Young University Spinal implant
US9333008B2 (en) 2010-02-19 2016-05-10 Brigham Young University Serpentine spinal stability device

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WO2006127992A2 (en) 2006-11-30
JP2008541880A (en) 2008-11-27
US8100947B2 (en) 2012-01-24
EP1883359A2 (en) 2008-02-06
WO2006127992A3 (en) 2007-09-13
US20060276792A1 (en) 2006-12-07

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