Atherectomy device with a positive pump means

Details Atherectomy device with a positive pump means Atherectomy device with a positive pump means

A - Human Necessities

61

B

128/113, 128/127

A61B 17/22 (2006.01) A61B 18/08 (2006.01) A61B 18/24 (2006.01) F16C 1/02 (2006.01) F16D 7/02 (2006.01) A61B 19/00 (2006.01) A61M 1/00 (2006.01)

Patent

CA 1325571

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.

606478

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