WO2006041532A3 - Polyaxial bone screw with uploaded threaded shank and method of assembly and use - Google Patents

Polyaxial bone screw with uploaded threaded shank and method of assembly and use Download PDF

Info

Publication number
WO2006041532A3
WO2006041532A3 PCT/US2005/013420 US2005013420W WO2006041532A3 WO 2006041532 A3 WO2006041532 A3 WO 2006041532A3 US 2005013420 W US2005013420 W US 2005013420W WO 2006041532 A3 WO2006041532 A3 WO 2006041532A3
Authority
WO
WIPO (PCT)
Prior art keywords
head
capture structure
bone screw
polyaxial bone
assembly
Prior art date
Application number
PCT/US2005/013420
Other languages
French (fr)
Other versions
WO2006041532A2 (en
Inventor
Roger P Jackson
Original Assignee
Roger P Jackson
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36148755&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006041532(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Roger P Jackson filed Critical Roger P Jackson
Priority to AU2005294799A priority Critical patent/AU2005294799B2/en
Priority to JP2007533453A priority patent/JP4612683B2/en
Priority to EP05736323A priority patent/EP1799131A4/en
Priority to CA2578569A priority patent/CA2578569C/en
Publication of WO2006041532A2 publication Critical patent/WO2006041532A2/en
Publication of WO2006041532A3 publication Critical patent/WO2006041532A3/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
    • A61B17/7035—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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated

Abstract

A polyaxial bone screw assembly includes threaded shank body integral with an upper capture structure and head having an inner cavity for receiving the capture structure. The capture structure threaded and the head includes a threaded opening for rotatable assembly with the capture structure and eventual locking frictional engagement between the capture structure and the head. The head has a U-shaped cradle defining a channel for receiving a spinal fixation rod. The head channel communicates with the cavity and further with the threaded opening that allows for loading the capture structure into the head but prevents pushing or pulling of the capture structure out of the head. The capture structure and the head provide a ball joint. A tool is also provided.
PCT/US2005/013420 2004-10-05 2005-04-21 Polyaxial bone screw with uploaded threaded shank and method of assembly and use WO2006041532A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2005294799A AU2005294799B2 (en) 2004-10-05 2005-04-21 Polyaxial bone screw with uploaded threaded shank and method of assembly and use
JP2007533453A JP4612683B2 (en) 2004-10-05 2005-04-21 Polyaxial bone screw with threaded shank loaded upward, and method of assembly and use
EP05736323A EP1799131A4 (en) 2004-10-05 2005-04-21 Polyaxial bone screw with uploaded threaded shank and method of assembly and use
CA2578569A CA2578569C (en) 2004-10-05 2005-04-21 Polyaxial bone screw with uploaded threaded shank and method of assembly and use

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/958,743 2004-10-05
US10/958,743 US8540753B2 (en) 2003-04-09 2004-10-05 Polyaxial bone screw with uploaded threaded shank and method of assembly and use

Publications (2)

Publication Number Publication Date
WO2006041532A2 WO2006041532A2 (en) 2006-04-20
WO2006041532A3 true WO2006041532A3 (en) 2006-12-14

Family

ID=36148755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/013420 WO2006041532A2 (en) 2004-10-05 2005-04-21 Polyaxial bone screw with uploaded threaded shank and method of assembly and use

Country Status (6)

Country Link
US (6) US8540753B2 (en)
EP (1) EP1799131A4 (en)
JP (1) JP4612683B2 (en)
AU (1) AU2005294799B2 (en)
CA (1) CA2578569C (en)
WO (1) WO2006041532A2 (en)

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