Prosthesis for spanning a space formed upon removal of an intervertebral disk
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1998
Issued Date -
N/A
app pub date -
Mar 5, 1996
filing date -
Jan 28, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An artificial vertebra spacer is embedded in and bridges a space between two adjacent vertebrae which are positioned superiorly and inferiorly of a removed intervertebral disk, respectively. The artificial vertebra spacer includes a hollow cylindrical member, and a helical screw thread disposed integrally on and extending helically around the hollow cylindrical member. A substantially rectangular flange portion is provided at one end of the hollow cylindrical member. The flange portion is provided with at least one hole through which at least one screw passes to fix the spacer.
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