Filtration unit for retaining blood clots
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United States of America Patent
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Mar 10, 1998
Grant Date -
N/A
app pub date -
Aug 9, 1996
filing date -
Aug 10, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a blood filtration unit which is to be implanted in a vessel (11) of a patient's body, especially for retaining blood clots, comprising a first filter (2) which is to be implanted temporarily, a first catheter (20) for introducing the first filter (2) into the vessel, a second filter (1) which is to be implanted permanently, the second filter (1) having a central opening of which the diameter is sufficiently large to permit the passage of the first filter (2) through it, and a second catheter (22) for introducing the second filter (1) into the vessel (11) and for removing the first filter (2) from the vessel (11).
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