Device implanted in a vessel with lateral legs provided with antagonistically oriented teeth
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United States of America Patent
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-
Apr 28, 1992
Grant Date -
N/A
app pub date -
Oct 10, 1990
filing date -
Mar 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a device adapted to be implanted in a vessel, for example a filter for retaining blood clots in a vein, which comprises lateral legs abutting on the wall of the vessel. According to the invention, each leg, whose end is not sharp, is provided with at least two teeth with antagonistic inclination. They are preferably placed towards the rounded end of the leg and have divergent directions. The tooth is for example obtained by cutting out and pushing a median part of the leg, and possibly by subsequent bending thereof. The angle made by the end part of the tooth with respect to the plane of the leg is included between 0 and 30.degree.; the tip of the tooth is at a distance of between 0.8 and 2 mm from the leg.
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