CA2104391A1 - Middle expandable intervertebral disk implant and method - Google Patents

Middle expandable intervertebral disk implant and method

Info

Publication number
CA2104391A1
CA2104391A1 CA002104391A CA2104391A CA2104391A1 CA 2104391 A1 CA2104391 A1 CA 2104391A1 CA 002104391 A CA002104391 A CA 002104391A CA 2104391 A CA2104391 A CA 2104391A CA 2104391 A1 CA2104391 A1 CA 2104391A1
Authority
CA
Canada
Prior art keywords
implant
intervertebral disk
disk implant
expandable intervertebral
expansion
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002104391A
Other languages
French (fr)
Other versions
CA2104391C (en
Inventor
Madhavan Pisharodi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 US07/659,758 external-priority patent/US5171278A/en
Application filed by Individual filed Critical Individual
Publication of CA2104391A1 publication Critical patent/CA2104391A1/en
Application granted granted Critical
Publication of CA2104391C publication Critical patent/CA2104391C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

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    • 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
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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
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    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

Artificial disk implant and methods for implanting same, the implant having a member (32, 34, 36, 77, 92, 94) for adapting in size and shape to the anatomical space between vertebrae, and apparatus (25, 42, 60, 112) for expanding the implant in the middle portion thereof to conform to the space. In one embodiment, there is provided an artificial intervertebral disk implant having a cylindrical body (20, 41, 56, 88) comprised of cylindrical subunits (32, 34, 36, 92, 94) capable of expansion. In another embodiment, rectangular members (34, 36) or elongate ribs (77) capable of expansion are provided. The implant can be used alone or in various combinations for the purpose of spinal fusion.
CA002104391A 1991-02-22 1992-02-21 Middle expandable intervertebral disk implant and method Expired - Fee Related CA2104391C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US659,758 1991-02-22
US07/659,758 US5171278A (en) 1991-02-22 1991-02-22 Middle expandable intervertebral disk implants
US78675891A 1991-11-01 1991-11-01
US786,758 1991-11-01
PCT/US1992/001397 WO1992014423A1 (en) 1991-02-22 1992-02-21 Middle expandable intervertebral disk implant and method

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CA2104391A1 true CA2104391A1 (en) 1992-08-23
CA2104391C CA2104391C (en) 2006-01-24

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EP (1) EP0571555B1 (en)
JP (1) JP3390431B2 (en)
AU (1) AU1454192A (en)
CA (1) CA2104391C (en)
DE (1) DE69209494T2 (en)
WO (1) WO1992014423A1 (en)

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CA2104391C (en) 2006-01-24
JPH06504704A (en) 1994-06-02
EP0571555B1 (en) 1996-03-27
DE69209494T2 (en) 1996-10-31
US5693100A (en) 1997-12-02
JP3390431B2 (en) 2003-03-24
AU1454192A (en) 1992-09-15
WO1992014423A1 (en) 1992-09-03
DE69209494D1 (en) 1996-05-02
EP0571555A1 (en) 1993-12-01

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