WO2008073544A3 - Spring-loaded, load sharing polyaxial pedicle screw assembly and method - Google Patents
Spring-loaded, load sharing polyaxial pedicle screw assembly and method Download PDFInfo
- Publication number
- WO2008073544A3 WO2008073544A3 PCT/US2007/077564 US2007077564W WO2008073544A3 WO 2008073544 A3 WO2008073544 A3 WO 2008073544A3 US 2007077564 W US2007077564 W US 2007077564W WO 2008073544 A3 WO2008073544 A3 WO 2008073544A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw head
- load sharing
- washer
- sharing mechanism
- loaded
- Prior art date
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49947—Assembling or joining by applying separate fastener
- Y10T29/49948—Multipart cooperating fastener [e.g., bolt and nut]
Abstract
An assembly and method thereof comprising a screw head comprising an expandable bulbous end; a fixator component configured for receiving the bulbous end of the screw head; a load sharing mechanism positioned in between the bulbous end of the screw head and the bone fixator component, wherein the load sharing mechanism provides tensile resistance to the screw head; a pin mounted in the screw head; and a blocker adapted to engage the screw head. The screw head comprises a slot configured for receiving a longitudinal member. The load sharing mechanism may comprise any of a wave washer, a collapsible hollow washer, a coiled spring, and a flexible washer. Furthermore, the load sharing mechanism may comprise a washer having an outer surface with a plurality of cutout portions configured therein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07841834A EP2088946A4 (en) | 2006-12-11 | 2007-09-05 | Spring-loaded, load sharing polyaxial pedicle screw assembly and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/608,857 | 2006-12-11 | ||
US11/608,857 US7892257B2 (en) | 2004-02-27 | 2006-12-11 | Spring loaded, load sharing polyaxial pedicle screw assembly and method |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008073544A2 WO2008073544A2 (en) | 2008-06-19 |
WO2008073544A3 true WO2008073544A3 (en) | 2008-10-02 |
Family
ID=39512354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/077564 WO2008073544A2 (en) | 2006-12-11 | 2007-09-05 | Spring-loaded, load sharing polyaxial pedicle screw assembly and method |
Country Status (3)
Country | Link |
---|---|
US (2) | US7892257B2 (en) |
EP (1) | EP2088946A4 (en) |
WO (1) | WO2008073544A2 (en) |
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US7604655B2 (en) | 2004-10-25 | 2009-10-20 | X-Spine Systems, Inc. | Bone fixation system and method for using the same |
US7717943B2 (en) | 2005-07-29 | 2010-05-18 | X-Spine Systems, Inc. | Capless multiaxial screw and spinal fixation assembly and method |
WO2007041702A2 (en) | 2005-10-04 | 2007-04-12 | Alphaspine, Inc. | Pedicle screw system with provisional locking aspects |
US8097025B2 (en) | 2005-10-25 | 2012-01-17 | X-Spine Systems, Inc. | Pedicle screw system configured to receive a straight or curved rod |
IL179135A (en) * | 2005-11-10 | 2010-11-30 | Elbit Systems Electro Optics Elop Ltd | Head up display mechanism |
US8057519B2 (en) * | 2006-01-27 | 2011-11-15 | Warsaw Orthopedic, Inc. | Multi-axial screw assembly |
US7722652B2 (en) | 2006-01-27 | 2010-05-25 | Warsaw Orthopedic, Inc. | Pivoting joints for spinal implants including designed resistance to motion and methods of use |
US7833252B2 (en) | 2006-01-27 | 2010-11-16 | Warsaw Orthopedic, Inc. | Pivoting joints for spinal implants including designed resistance to motion and methods of use |
US8740947B2 (en) * | 2006-02-15 | 2014-06-03 | Warsaw, Orthopedic, Inc. | Multiple lead bone fixation apparatus |
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ES2695736T3 (en) * | 2006-10-02 | 2019-01-10 | Cendres Metaux Sa | Anchoring to fix a false tooth |
US8162990B2 (en) * | 2006-11-16 | 2012-04-24 | Spine Wave, Inc. | Multi-axial spinal fixation system |
US10758283B2 (en) | 2016-08-11 | 2020-09-01 | Mighty Oak Medical, Inc. | Fixation devices having fenestrations and methods for using the same |
CA2693682C (en) * | 2007-07-13 | 2015-02-24 | George Frey | Systems and methods for spinal stabilization |
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US8491639B2 (en) * | 2008-08-06 | 2013-07-23 | Spine Wave, Inc. | Multi-axial spinal fixation system |
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US8617216B2 (en) * | 2010-04-05 | 2013-12-31 | David L. Brumfield | Fully-adjustable bone fixation device |
US20110257687A1 (en) * | 2010-04-19 | 2011-10-20 | Warsaw Orthopedic, Inc. | Load sharing bone fastener and methods of use |
US9084634B1 (en) | 2010-07-09 | 2015-07-21 | Theken Spine, Llc | Uniplanar screw |
US10603083B1 (en) | 2010-07-09 | 2020-03-31 | Theken Spine, Llc | Apparatus and method for limiting a range of angular positions of a screw |
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US20120203281A1 (en) * | 2011-02-05 | 2012-08-09 | Alphatec Spine, Inc | Semi-rigid screw assembly |
US9186184B2 (en) | 2011-02-14 | 2015-11-17 | Pioneer Surgical Technology, Inc. | Spinal fixation system and method |
KR101093513B1 (en) | 2011-02-23 | 2011-12-14 | 이춘성 | Pedicle fixing screws capable of elongation |
FR2978343B1 (en) * | 2011-07-25 | 2013-08-23 | Medicrea International | ANCHORING BODY FOR VERTEBRAL OSTEOSYNTHESIS EQUIPMENT |
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US8641736B2 (en) * | 2012-01-20 | 2014-02-04 | Warsaw Orthopedic, Inc. | Vertebral fastener system |
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DE102012016294B4 (en) * | 2012-08-16 | 2014-02-27 | Spontech Spine Intelligence Group Ag | Polyaxial connector for spinal fixation systems and spine fixation system |
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US20140277163A1 (en) * | 2013-03-15 | 2014-09-18 | Ryan Kretzer | Reinforcement systems for spine stabilization constructs |
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EP3503827A4 (en) * | 2016-08-24 | 2020-08-05 | Integrity Implants Inc. | Adjustable bone fixation systems |
US10507043B1 (en) | 2017-10-11 | 2019-12-17 | Seaspine Orthopedics Corporation | Collet for a polyaxial screw assembly |
CN108980181A (en) * | 2018-10-02 | 2018-12-11 | 湖州杭佳弹簧有限公司 | Connector with fine adjustment function |
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US6896677B1 (en) * | 2003-12-11 | 2005-05-24 | A-Spine Holding Group Corp. | Rotary device for retrieving spinal column under treatment |
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-
2006
- 2006-12-11 US US11/608,857 patent/US7892257B2/en not_active Expired - Fee Related
-
2007
- 2007-09-05 EP EP07841834A patent/EP2088946A4/en not_active Withdrawn
- 2007-09-05 WO PCT/US2007/077564 patent/WO2008073544A2/en active Application Filing
-
2011
- 2011-01-12 US US13/005,227 patent/US8439954B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6896677B1 (en) * | 2003-12-11 | 2005-05-24 | A-Spine Holding Group Corp. | Rotary device for retrieving spinal column under treatment |
Non-Patent Citations (1)
Title |
---|
See also references of EP2088946A4 * |
Also Published As
Publication number | Publication date |
---|---|
US8439954B2 (en) | 2013-05-14 |
WO2008073544A2 (en) | 2008-06-19 |
US20070093832A1 (en) | 2007-04-26 |
EP2088946A2 (en) | 2009-08-19 |
US20110112582A1 (en) | 2011-05-12 |
EP2088946A4 (en) | 2012-07-18 |
US7892257B2 (en) | 2011-02-22 |
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