WO2008083052B1 - Sacral reconstruction fixation device - Google Patents

Sacral reconstruction fixation device

Info

Publication number
WO2008083052B1
WO2008083052B1 PCT/US2007/088489 US2007088489W WO2008083052B1 WO 2008083052 B1 WO2008083052 B1 WO 2008083052B1 US 2007088489 W US2007088489 W US 2007088489W WO 2008083052 B1 WO2008083052 B1 WO 2008083052B1
Authority
WO
WIPO (PCT)
Prior art keywords
connector body
passage
connector
fixation device
rod
Prior art date
Application number
PCT/US2007/088489
Other languages
French (fr)
Other versions
WO2008083052A1 (en
Inventor
Eric S Heinz
Original Assignee
Warsaw Orthopedic Inc
Eric S Heinz
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
Application filed by Warsaw Orthopedic Inc, Eric S Heinz filed Critical Warsaw Orthopedic Inc
Priority to JP2009544214A priority Critical patent/JP2010514511A/en
Priority to CN2007800454784A priority patent/CN101588764B/en
Priority to EP07869707A priority patent/EP2120750B1/en
Priority to AU2007339950A priority patent/AU2007339950A1/en
Publication of WO2008083052A1 publication Critical patent/WO2008083052A1/en
Publication of WO2008083052B1 publication Critical patent/WO2008083052B1/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
    • A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
    • 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
    • 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
    • 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
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • 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
    • A61B17/7005—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in 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
    • A61B17/7032—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
    • A61B17/70—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
    • A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
    • 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
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • 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
    • A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

Abstract

A sacral reconstruction fixation device (28) aids in stabilizing the pelvis and the lumbar spine after a sacrectomy in cooperation with a spinal rod (30) and transiliac rod (40). A pair of the fixation devices (50) may be secured to respective ilia and respective spinal rods (30). The transiliac rod (40) may be secured to both of the fixation devices. The fixation devices include first and second parts that are initially relatively rotatable about a common axis to aid in connecting the fixation devices to the spinal rod and transiliac rod. The body part is intended to be mated to the spinal rod, while the second part is intended to be mated to the transiliac rod. The fixation device's parts are subsequently locked against rotation and against longitudinal translation, advantageously both relative to each other and the rods.

Claims

AMENDED CLAIMS received by the International Bureau on 03 July 2008 (03.07.2008)
1. A sacral reconstruction fixation device, comprising: a first connector body having a first rod-receiving passage therethrough along an axis; an iliac anchor screw mated to said first connector body; a second connector body distinct from said first connector body, but mated thereto; said second connector body having a rod-receiving first passage extending along said axis and a variably sized second passage disposed transverse to the axis; wherein the fixation device is selectively configurable between: a first adjustable configuration wherein the first and second connector bodies are coupled for relative rotation about said axis and the second passage is relatively larger; and a second locked configuration wherein the first and second connector bodies are fixed against relative rotation and translation, said second passage is relatively smaller, and said iliac anchor screw is angularly fixed relative to said first connector body.
2. The sacral reconstruction fixation device of claim 1 wherein said iliac anchor screw connects to said first connector body so as to be lockably disposed at a variable angle relative to said axis.
3. The sacral reconstruction fixation device of claim 1 wherein said first connector body further comprises a first locking element disposed opposite to said iliac anchor screw relative to said axis and selectively displaceable toward said iliac anchor screw.
4. The sacral reconstruction fixation device of claim 1 wherein said first connector body further comprises a second locking element disposed between said iliac anchor screw and said axis and selectively engageable with said iliac anchor screw. 19
5. The sacral reconstruction fixation device of claim 1 wherein said second connector body further comprises a conyexly curvate body disposed in said second passage; said convexly curvate body having a central bore therethrough of variable size.
6. The sacral reconstruction fixation device of claim 1 wherein said second connector body further comprises a third variably sized passage disposed generally parallel to said second passage; wherein the third passage is relatively larger when said fixation device is in said first configuration and relatively smaller when said fixation device is in said second locked configuration.
7. The sacral reconstruction fixation device of claim 1 wherein said second connector body further comprises at least one prong extending superiorly into a chamber in said first connector body.
8. The sacral reconstruction fixation device of claim 1 wherein said chamber is an annular chamber.
9. The sacral reconstruction fixation device of claim 1 wherein an inferior entry into said first passage of said second connector body is tapered.
10. The sacral reconstruction fixation device of claim 1 wherein said first and second connector bodies are made from a radiohicent material.
11. A sacral reconstruction fixation assembly, comprising: a first connector assembly comprising: a first connector body having a first passage therethrough along an axis; a first iliac anchor screw mated to said first connector body; a second connector body distinct from said first connector body, but mated thereto; said second connector body having a rod-receiving first passage extending along said axis and a variably sized second passage disposed transverse to the axis; 20
a first spinal rod extending through both said first passage of said first connector body assembly; a fiTsttransiliac rod disposed in said second passage; wherein the first connector assembly is selectively configurable between: a first adjustable configuration wherein the first and second connector bodies are coupled for relative rotation about said axis and the second passage is relatively larger, and a second locked configuration wherein the first and second connector bodies are fixed against rotation and translation both relative to each other and relative to the spinal rod, said second passage is relatively smaller so as to clamp said transiliac rod therein to fix said second connector body against longitudinal translation along said transiliac rod, and the iliac anchor screw is angularly fixed relative to said first connector body.
12. The sacral reconstruction fixation device of claim 11 wherein said first iliac anchor screw connects to said first connector body of said first connector assembly so as to be lockably disposed at a variable angle relative to said first axis.
13. The sacral reconstruction fixation device of claim 11 wherein said first connector body of said first connector assembly further comprises a first locking element disposed opposite to said first iliac anchor screw relative to said first axis and selectively displaceable toward said first iliac anchor screw.
14. The sacral reconstruction fixation device of claim 11 wherein said second connector body of said first connector assembly further comprises a convexly curvate body disposed in its second passage; said convexly curvate body having a central bore therethrough of variable size.
15. The sacral reconstruction fixation device of claim 11 wherein said first spinal rod is generally L-shaped when viewed laterally.
16. The sacral reconstruction fixation device of claim 11 wherein an inferior end of said first spinal rod is enlarged. 21
17. The sacral reconstruction fixation device of claim 11 further comprising: a second connector assembly comprising: a first connector body having a first rod-receiving passage therethrough along a second axis; a second iliac anchor screw mated to said first connector body; a second connector body distinct from the corresponding first connector body, but mated thereto; said second connector body having a rod-receiving first passage extending along said second axis and a variably sized second passage disposed transverse to the axis; a second spinal rod extending through both said first passages of said second connector assembly; the first transiliac rod disposed in said second passage of said second connector assembly; wherein the second connector assembly is selectively configurable between: a first adjustable configuration wherein its first and second connector bodies are coupled for relative rotation about said axis and its second passage is relatively larger; and a second locked configuration wherein its first and second connector bodies are fixed against rotation and translation both relative to each other and relative to the second spinal rod, said second passage of said second connector body is relatively smaller so to clamp said transiliac rod therein to fix the corresponding second connector body against longitudinal translation along said transiliac rod, and the second iliac anchor screw is angularly fixed relative to its connector body.
18. The sacral reconstruction fixation device of claim 17 wherein said first connector assembly and said second connector assembly are substantially identical.
19. The sacral reconstruction fixation device of claim 17 wherein said second connector body of said first connector assembly further comprises a conyexly curvate body disposed in its second passage; said convexly curvate body having a central bore therethrough of variable size. 22
20. The sacral reconstruction fixation device of claim 17 further comprising a second transiliac rod clamped to said first and second connector assemblies.
PCT/US2007/088489 2006-12-26 2007-12-21 Sacral reconstruction fixation device WO2008083052A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009544214A JP2010514511A (en) 2006-12-26 2007-12-21 Sacral reconstruction fixation device
CN2007800454784A CN101588764B (en) 2006-12-26 2007-12-21 Sacral reconstruction fixation device
EP07869707A EP2120750B1 (en) 2006-12-26 2007-12-21 Sacral reconstruction fixation device
AU2007339950A AU2007339950A1 (en) 2006-12-26 2007-12-21 Sacral reconstruction fixation device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/616,050 US7789895B2 (en) 2006-12-26 2006-12-26 Sacral reconstruction fixation device
US11/616,050 2006-12-26

Publications (2)

Publication Number Publication Date
WO2008083052A1 WO2008083052A1 (en) 2008-07-10
WO2008083052B1 true WO2008083052B1 (en) 2008-08-28

Family

ID=39544006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/088489 WO2008083052A1 (en) 2006-12-26 2007-12-21 Sacral reconstruction fixation device

Country Status (7)

Country Link
US (1) US7789895B2 (en)
EP (1) EP2120750B1 (en)
JP (1) JP2010514511A (en)
KR (1) KR20090102834A (en)
CN (1) CN101588764B (en)
AU (1) AU2007339950A1 (en)
WO (1) WO2008083052A1 (en)

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EP2120750B1 (en) 2012-06-27
WO2008083052A1 (en) 2008-07-10
KR20090102834A (en) 2009-09-30
CN101588764A (en) 2009-11-25
JP2010514511A (en) 2010-05-06
US20080154306A1 (en) 2008-06-26
AU2007339950A1 (en) 2008-07-10
US7789895B2 (en) 2010-09-07
EP2120750A1 (en) 2009-11-25
CN101588764B (en) 2011-11-23

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