WO2007019110A3 - Spring junction and assembly methods for spinal device - Google Patents

Spring junction and assembly methods for spinal device Download PDF

Info

Publication number
WO2007019110A3
WO2007019110A3 PCT/US2006/029713 US2006029713W WO2007019110A3 WO 2007019110 A3 WO2007019110 A3 WO 2007019110A3 US 2006029713 W US2006029713 W US 2006029713W WO 2007019110 A3 WO2007019110 A3 WO 2007019110A3
Authority
WO
WIPO (PCT)
Prior art keywords
spring
region
resilient element
weld
structural member
Prior art date
Application number
PCT/US2006/029713
Other languages
French (fr)
Other versions
WO2007019110A2 (en
Inventor
Jens Peter Timm
Alvin Johnson
Original Assignee
Applied Spine Technologies Inc
Jens Peter Timm
Alvin Johnson
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 US11/196,102 external-priority patent/US7713288B2/en
Priority claimed from US11/405,196 external-priority patent/US7699875B2/en
Application filed by Applied Spine Technologies Inc, Jens Peter Timm, Alvin Johnson filed Critical Applied Spine Technologies Inc
Publication of WO2007019110A2 publication Critical patent/WO2007019110A2/en
Publication of WO2007019110A3 publication Critical patent/WO2007019110A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • 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
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7007—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around 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, 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
    • A61B17/7002—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0093—Welding characterised by the properties of the materials to be welded
    • 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
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • 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
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
    • 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
    • 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
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks

Abstract

Spinal stabilization devices, systems and methods are provided. Included is a spring junction wherein a structural member may mount to a spine attachment fastener and a resilient element may be affixed to the structural member at an attachment region of said element. The attachment region of said resilient element may include a weld region wherein a heat-affected zone adjacent to the weld region is separated from the active region the element. The resilient element may be a spring including bends configured to facilitate positioning prior to welding. A weld cap may be configured and dimensioned to interact with the resilient element and said structural member so as to securely position the spring relative to the member. Said weld cap functioning to minimize undesirable annealing due to the welding process. Alignment grooves or channels may be provided to orient the spring.
PCT/US2006/029713 2005-08-03 2006-07-27 Spring junction and assembly methods for spinal device WO2007019110A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/196,102 2005-08-03
US11/196,102 US7713288B2 (en) 2005-08-03 2005-08-03 Spring junction and assembly methods for spinal device
US11/405,196 US7699875B2 (en) 2006-04-17 2006-04-17 Spinal stabilization device with weld cap
US11/405,196 2006-04-17

Publications (2)

Publication Number Publication Date
WO2007019110A2 WO2007019110A2 (en) 2007-02-15
WO2007019110A3 true WO2007019110A3 (en) 2007-10-11

Family

ID=37727854

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/029713 WO2007019110A2 (en) 2005-08-03 2006-07-27 Spring junction and assembly methods for spinal device

Country Status (1)

Country Link
WO (1) WO2007019110A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6371465B1 (en) * 2000-07-10 2002-04-16 William O. Willis Coil spring assembly and mounting device with bend control
US20030078667A1 (en) * 1999-06-04 2003-04-24 Depuy Acromed, Incorporated Orthopedic implant
US20030171749A1 (en) * 2000-07-25 2003-09-11 Regis Le Couedic Semirigid linking piece for stabilizing the spine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030078667A1 (en) * 1999-06-04 2003-04-24 Depuy Acromed, Incorporated Orthopedic implant
US6371465B1 (en) * 2000-07-10 2002-04-16 William O. Willis Coil spring assembly and mounting device with bend control
US20030171749A1 (en) * 2000-07-25 2003-09-11 Regis Le Couedic Semirigid linking piece for stabilizing the spine

Also Published As

Publication number Publication date
WO2007019110A2 (en) 2007-02-15

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