Intersomatic vertebral cage
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United States of America Patent
Stats
-
Sep 10, 1996
Grant Date -
N/A
app pub date -
Jan 23, 1995
filing date -
Jan 26, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intersomatic cage to be inserted from the posterior approach between two vertebrae comprises two substantially parallel branches for contact with the vertebral bodies, a linking portion linking the posterior ends of the branches, and a movable spreader member for angularly spreading the two branches after insertion of the cage between the two vertebrae. The cage allows adjustment of the lordosis angle between the two vertebrae during surgery. Ancillary equipment for insertion of the cage includes a rasp for forming a housing for the cage between the two vertebrae, a cage-holder for inserting the cage into the housing, a screwdriver for turning a screw screwed into the spreader member to spread the two branches of the cage, and a guide for successively guiding the rasp, the cage-holder with the cage, and subsequently the screwdriver.
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