WO2004093701A2 - Spinal fixation sytem and method - Google Patents
Spinal fixation sytem and method Download PDFInfo
- Publication number
- WO2004093701A2 WO2004093701A2 PCT/US2004/009763 US2004009763W WO2004093701A2 WO 2004093701 A2 WO2004093701 A2 WO 2004093701A2 US 2004009763 W US2004009763 W US 2004009763W WO 2004093701 A2 WO2004093701 A2 WO 2004093701A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- mating
- elongated rod
- vertebral
- receiving
- 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
- A61B17/7038—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
-
- 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
Definitions
- Figure 6 is side view of another embodiment of the present invention including a partial cross-sectional view of a locking mechanism
- Figure 7 is a side view of another embodiment similar to Figure 6.
- the present invention is directed to devices and methods of attaching an elongated rod to different vertebral members to form a spinal fixation system.
- the device generally illustrated as 10 in Figure 1, comprises a securement member 20 having a first section 22 positioned within the vertebral member. A second section 24 extends outward and at an angle from the first section 22.
- a receiving member 30 is mounted to the second section 24 to receive the elongated rigid member or rod 50.
- Receiving member 30 includes an attachment section 38 (Fig. 2) for receiving and attaching to the second section 24.
- the receiving member 30 is laterally movable along the second section 24 for positioning the elongated rod 50 relative to the spine of the patient.
- key 29 extends a limited distance from the distal end of the second section 24.
- second section 24 includes an indent (not illustrated) that extends into the cross-sectional shape (i.e., opposite the key 29).
- a key 29 is positioned on the receiving member 30 that aligns with the indent.
- second section may include two or more indents located at variations positions.
- the keys 29 and indents are substantially linear.
- the keys 29 and indents are helical.
- attachment section 38 includes one or more indents 31 for receiving the one or more keys 29 of the second section 24.
- attachment section 38 includes one or more keys that mount within one or more indents of the second section 24.
- the channel 36 receives the elongated rod 50.
- channel 36 is formed between opposing sidewalls 35.
- the channel 36 has open ends through which the elongated rod 50 extends.
- sidewalls 35 have a length greater than the diameter of the elongated rod 50.
- Outer edges of the sidewalls 35 may include threads 37 for receiving the fastener 60.
- sidewalls 35 may include inner threads that cooperate with external threads of an internal screw member that would replace an outer nut or locking member 60 as illustrated in Figure 6.
- a center of first section 22 is placed a distance x from centerline C in vertebral member 102, a center of first section 22 is placed a distance y from centerline C in vertebral member 104, and a center of first section 22 is placed a distance z from centerline C in vertebral member 106.
- Each distance x, y, z may be the same or different distances.
- the receiving member 30 is movable along the second sections 24 such that the rod 50 can be maintained at a predetermined position despite the position of the first sections 22.
- the different securement members 20 are mounted at different angles within the vertebral members.
- spinal fixation system 100 may include one or more lateral connectors 112 for relatively securing adjacent rods 50. The invention permits angulation between the different securement members 20 while providing for lateral and medial offset.
- first section 22 may include a driver interface 98 shaped to correspond to a driver for inserting securement member 20.
- Driver interface 98 may be an internal or an external feature, such as a hexagonal shape, a cross shape, a rectangular shape, a triangular shape, or any other shape suitable for driving the first section 22 into bone.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006509492A JP2006523502A (en) | 2003-04-17 | 2004-03-31 | Spinal fixation system |
AU2004231542A AU2004231542B2 (en) | 2003-04-17 | 2004-03-31 | Spinal fixation sytem and method |
EP04749552A EP1615570A2 (en) | 2003-04-17 | 2004-03-31 | Spinal fixation sytem and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/418,030 | 2003-04-17 | ||
US10/418,030 US20040210216A1 (en) | 2003-04-17 | 2003-04-17 | Spinal fixation system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004093701A2 true WO2004093701A2 (en) | 2004-11-04 |
WO2004093701A3 WO2004093701A3 (en) | 2005-01-20 |
Family
ID=33159050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/009763 WO2004093701A2 (en) | 2003-04-17 | 2004-03-31 | Spinal fixation sytem and method |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040210216A1 (en) |
EP (1) | EP1615570A2 (en) |
JP (1) | JP2006523502A (en) |
AU (1) | AU2004231542B2 (en) |
WO (1) | WO2004093701A2 (en) |
Cited By (3)
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WO2005104970A1 (en) * | 2004-04-16 | 2005-11-10 | Kyphon Inc. | Screw assembly |
US7524323B2 (en) | 2004-04-16 | 2009-04-28 | Kyphon Sarl | Subcutaneous support |
US7811311B2 (en) | 2004-12-30 | 2010-10-12 | Warsaw Orthopedic, Inc. | Screw with deployable interlaced dual rods |
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- 2004-03-31 AU AU2004231542A patent/AU2004231542B2/en not_active Expired
- 2004-03-31 EP EP04749552A patent/EP1615570A2/en not_active Withdrawn
- 2004-03-31 JP JP2006509492A patent/JP2006523502A/en active Pending
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2005104970A1 (en) * | 2004-04-16 | 2005-11-10 | Kyphon Inc. | Screw assembly |
US7524323B2 (en) | 2004-04-16 | 2009-04-28 | Kyphon Sarl | Subcutaneous support |
US7811311B2 (en) | 2004-12-30 | 2010-10-12 | Warsaw Orthopedic, Inc. | Screw with deployable interlaced dual rods |
Also Published As
Publication number | Publication date |
---|---|
EP1615570A2 (en) | 2006-01-18 |
WO2004093701A3 (en) | 2005-01-20 |
AU2004231542B2 (en) | 2010-03-25 |
US20040210216A1 (en) | 2004-10-21 |
AU2004231542A1 (en) | 2004-11-04 |
JP2006523502A (en) | 2006-10-19 |
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