Polyaxial pedicle-screw
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 2002
Grant Date -
Aug 9, 2001
app pub date -
Feb 7, 2001
filing date -
Feb 7, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pedicle-screw assembly has a screw extending along an axis and having a threaded shaft and a round head, an inner cap part carried on the head and swivelable on the head, and an outer cap part forming with the inner cap part a seat adapted to hold an end of a distraction/stabilizing rod. The outer cap part has formations engageable in a snap fit over the inner cap part, and an element on the outer cap part can be tightened to fix the rod in the seat. The outer cap part is generally U-shaped and formed with a base forming the seat and a pair of legs projecting parallel to the axis, flanking the cap inner part, and having ends engaged in a snap fit around sides of the cap inner part.
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