Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1988-07-29
1989-06-27
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
128305, A61B 1732
Patent
active
048425796
ABSTRACT:
An atherectomy system for cutting, ingesting and removing an obstruction from within a patient's artery, having a flexible guide-wire insertable into the artery, a flexible rotary catheter being rotatably disposed and insertable into the artery over the flexible guide-wire, a blade at a distal end of the flexible rotary catheter having teeth on its periphery which are rounded and bent toward the center of the blade to ease insertion through the arteries and to reduce the probability of cutting the arterial wall during the insertion and cutting operation the blade having an outer wall which slidingly and rotatably bears against the arterial wall spreading the contact force on a relatively large area to minimize damage to the artery, a continuous passage defined between the rotating flexible rotary catheter and the flexible guide-wire, for ingesting the cut obstruction material.
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Shiber Samuel
Surgical Systems & Instruments, Inc.
Thaler Michael H.
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