Vascular filter system with guidewire and capture mechanism
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United States of America Patent
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Nov 26, 2002
Grant Date -
N/A
app pub date -
Aug 11, 2000
filing date -
Aug 11, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A removable vascular filter system for blocking micro- and macro-emboli while allowing the continued perfusion of blood comprises a filter membrane positioned on a guidewire, wherein a free end of the membrane sits tightly against the guidewire when the filter membrane is in a collapsed state and wherein the filter has a device for deploying the filter membrane to assume a position substantially normal to the longitudinal axis of the guidewire. The filter membrane is comprised of a fine mesh material which has a pore size capable of blocking emboli while allowing continued blood flow, a preferred embodiment of which comprises regularly spaced, laser-formed holes, and in which the membrane has a scalloped proximal profile. A capture mechanism is similarly described.
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