WO1998048719A1 - A modular spinal plate - Google Patents
A modular spinal plate Download PDFInfo
- Publication number
- WO1998048719A1 WO1998048719A1 PCT/US1998/008707 US9808707W WO9848719A1 WO 1998048719 A1 WO1998048719 A1 WO 1998048719A1 US 9808707 W US9808707 W US 9808707W WO 9848719 A1 WO9848719 A1 WO 9848719A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coupling element
- shaft
- cuff
- stem
- slot
- 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
- A61B17/7041—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
-
- 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
- A61B17/701—Longitudinal elements with a non-circular, e.g. rectangular, cross-section
-
- 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
Definitions
- the track element 150 itself simply comprises a pair of rails 152a, 152b which extend in a spaced apart relationship, parallel to one another for an axial length of the track.
- the ends 154a, 154b of the track 150 comprise inwardly curved and continguous ends of the rails 152a, 152b such that the track maintains an elongated loop shape.
- the cross- section of the rails 152a, 152b illustrated herein shows the curvate of the inwardly facing surfaces 156a, 156b of the rails. This inward curvature is preferred insofar as it permits greater flexibility of coupling with a post portion 114 of a pedicle screw as it allows a range of entrance angles of the post 114 between the rails (described more fully hereinbelow).
- the compressible coupling element 200 is then advanced into position along the rails 152a, 152b of the track element 150.
- the threaded post portion 114 of the stem of the pedicle screw is then advanced through the second through hole 208 of the coupling element, until the upper portion of the cuff 122 seats into the tapered lower lip 210b of the coupling element 200.
- the top locking nut 220 is then threadably advanced onto the threaded post section 114 until the curvate bottom 224 of the nut seats in the upper opening of the second through hole 208, and against the upper lip 210a.
- Continued advancement of the top locking nut 220 causes a compressive force to be applied to the compressible coupling element 200.
- the applied load which build between the fixed cuff 122 and the top locking nut 220, causes the incomplete slots 206a,206b to narrow, thereby causing the coupling element to be compression locked to the rails 152a, 152b.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98920918A EP1014878B1 (en) | 1997-05-01 | 1998-04-30 | A modular spinal plate |
KR1019997010080A KR100544373B1 (en) | 1997-05-01 | 1998-04-30 | A modular spinal plate |
AU73646/98A AU746961B2 (en) | 1997-05-01 | 1998-04-30 | A modular spinal plate |
CA002287483A CA2287483C (en) | 1997-05-01 | 1998-04-30 | A modular spinal plate |
JP54737498A JP3999279B2 (en) | 1997-05-01 | 1998-04-30 | Modular spinal plate |
DE69834648T DE69834648T2 (en) | 1997-05-01 | 1998-04-30 | MODULAR SPINE PLATE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/846,473 | 1997-05-01 | ||
US08/846,473 US5800435A (en) | 1996-10-09 | 1997-05-01 | Modular spinal plate for use with modular polyaxial locking pedicle screws |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998048719A1 true WO1998048719A1 (en) | 1998-11-05 |
WO1998048719A9 WO1998048719A9 (en) | 1999-05-06 |
Family
ID=25298048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/008707 WO1998048719A1 (en) | 1997-05-01 | 1998-04-30 | A modular spinal plate |
Country Status (10)
Country | Link |
---|---|
US (1) | US5800435A (en) |
EP (1) | EP1014878B1 (en) |
JP (2) | JP3999279B2 (en) |
KR (1) | KR100544373B1 (en) |
AT (1) | ATE326909T1 (en) |
AU (1) | AU746961B2 (en) |
CA (1) | CA2287483C (en) |
DE (1) | DE69834648T2 (en) |
ES (1) | ES2268772T3 (en) |
WO (1) | WO1998048719A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003515380A (en) * | 1999-12-03 | 2003-05-07 | スピネヴィジョン エス.エー. | Coupling assembly for spinal osteosynthesis |
US9060815B1 (en) | 2012-03-08 | 2015-06-23 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
WO2021028869A1 (en) * | 2019-08-15 | 2021-02-18 | Premia Spine Ltd. | Polyaxial fixation system for revision surgery |
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Also Published As
Publication number | Publication date |
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ES2268772T3 (en) | 2007-03-16 |
EP1014878A4 (en) | 2004-09-08 |
EP1014878B1 (en) | 2006-05-24 |
JP2007268295A (en) | 2007-10-18 |
ATE326909T1 (en) | 2006-06-15 |
WO1998048719A9 (en) | 1999-05-06 |
DE69834648T2 (en) | 2007-05-03 |
AU7364698A (en) | 1998-11-24 |
US5800435A (en) | 1998-09-01 |
CA2287483C (en) | 2007-01-16 |
DE69834648D1 (en) | 2006-06-29 |
KR100544373B1 (en) | 2006-01-23 |
EP1014878A1 (en) | 2000-07-05 |
JP3999279B2 (en) | 2007-10-31 |
AU746961B2 (en) | 2002-05-09 |
KR20010020448A (en) | 2001-03-15 |
CA2287483A1 (en) | 1998-11-05 |
JP2001522289A (en) | 2001-11-13 |
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