Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 19, 2008
Patent Application Number
10642756
Date Filed
August 19, 2003
Patent Citations Received
Patent Primary Examiner
Patent abstract
The upper and lower surfaces 5 and 7 of an intervertebral spacer 1 inserted between the vertebrae of a spine are formed in the shape of a curved surfaces 21A and 21B each having a top portion at the middle portion in the back and forth direction. The above-mentioned upper and lower surfaces 5 and 7 are provided with a plurality of claw portions 17 for preventing withdrawal. Further, the intervertebral spacer 1 is formed in such a way that a tip portion in the direction of insertion is tapered.
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