CA2191089A1 - Intervertebral fusion implant - Google Patents

Intervertebral fusion implant

Info

Publication number
CA2191089A1
CA2191089A1 CA002191089A CA2191089A CA2191089A1 CA 2191089 A1 CA2191089 A1 CA 2191089A1 CA 002191089 A CA002191089 A CA 002191089A CA 2191089 A CA2191089 A CA 2191089A CA 2191089 A1 CA2191089 A1 CA 2191089A1
Authority
CA
Canada
Prior art keywords
implant
ridges
fusion implant
intervertebral fusion
openings
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
CA002191089A
Other languages
French (fr)
Other versions
CA2191089C (en
Inventor
Douglas W. Kohrs
Hansen A. Yuan
David W. Stassen
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.)
Zimmer Spine Inc
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
Application filed by Individual filed Critical Individual
Publication of CA2191089A1 publication Critical patent/CA2191089A1/en
Application granted granted Critical
Publication of CA2191089C publication Critical patent/CA2191089C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

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    • 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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    • 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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    • A61F2/4455—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
    • A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A61F2230/0019—Angular shapes rectangular
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0082—Three-dimensional shapes parallelepipedal

Abstract

An inter-vertebra fusion implant (100) includes first and second bearing surfaces (22a, 24a) which oppose cortical bone upon insertion of the implant (100)) into a bore formed between two vertebrae (10, 12).
The implant (100) includes first and second ridges (30, 32) which extend from the bearing surface (22a, 24a) The ridges (30, 32) extend through the cortical bone into cancellous bone. The ridges (30, 32) are provided with openings (44) formed through the ridges (30, 32). The openings (44) are in communication with the interior of the implant (100).
CA002191089A 1994-05-23 1995-02-09 Intervertebral fusion implant Expired - Fee Related CA2191089C (en)

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US24785794A 1994-05-23 1994-05-23
US08/247,857 1994-05-23
PCT/US1995/001655 WO1995031947A1 (en) 1994-05-23 1995-02-09 Intervertebral fusion implant

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CA2191089A1 true CA2191089A1 (en) 1995-11-30
CA2191089C CA2191089C (en) 2003-05-06

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JP (1) JP3509103B2 (en)
KR (1) KR100231490B1 (en)
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