Atherectomy device with a positive pump means
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United States of America Patent
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-
Sep 18, 1990
Issued Date -
N/A
app pub date -
Mar 22, 1989
filing date -
Dec 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An atherectomy system for cutting, ingesting and removing an obstruction from within a patient's artery, comprising a flexible guide-wire insertable into the artery, a flexible rotary-catheter rotatably disposed and slidable over the flexible guide-wire, a blade forming a distal end of the flexible rotary-catheter having teeth on its periphery which are bent inward, a continuous passage for ingesting the cut obstruction material between the flexible rotary-catheter and the flexible guide-wire, means at the proximal end of the flexible rotary-catheter for rotating it and positive displacement pump means connected to the continuous passage to pull the cut obstruction material proximally.
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