Thromboaspiration valve-filter device and methods
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United States of America Patent
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Aug 17, 2004
Grant Date -
N/A
app pub date -
Sep 7, 2000
filing date -
Sep 7, 2000
priority date (Note) -
Expired
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Abstract
A device and methods for filtering blood clot particles from blood from patient undergoing treatment for a thrombotic condition with a catheter are described. The device comprises a housing having a first end defining a fluid port, an opposite end defining a suction port, and a valve member disposed between the fluid port and the reservoir. The valve member has a semipermeable membrane portion permeable to blood but impermeable to blood clot particles and a one way valve portion having an open position permitting passage of fluid and particles from the fluid port to the reservoir and a closed position blocking passage of particles between the reservoir and the fluid port.
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