Atherectomy device with a positive pump means
First Claim
1. An atherectomy system for cutting, ingesting and removing an obstruction from within a patient'"'"'s artery, comprising in combination:
- a flexible guide-wire insertable into said artery,a flexible rotary-catheter being rotatably disposed and slidable over said flexible guide-wire,a blade forming a distal end of said flexible rotary-catheter having at least one tooth on its periphery which is bent inward,a continuous passage surrounding said flexible guide-wire for ingesting the cut obstruction material, said continuous passage being defined between said flexible rotary-catheter and said flexible guide-wire,coupling means at said proximal end of said flexible rotary-catheter for coupling it to a rotating means, andsuction means connected to said continuous passage to pull said cut obstruction material proximally.
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Accused Products
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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Citations
8 Claims
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1. An atherectomy system for cutting, ingesting and removing an obstruction from within a patient'"'"'s artery, comprising in combination:
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a flexible guide-wire insertable into said artery, a flexible rotary-catheter being rotatably disposed and slidable over said flexible guide-wire, a blade forming a distal end of said flexible rotary-catheter having at least one tooth on its periphery which is bent inward, a continuous passage surrounding said flexible guide-wire for ingesting the cut obstruction material, said continuous passage being defined between said flexible rotary-catheter and said flexible guide-wire, coupling means at said proximal end of said flexible rotary-catheter for coupling it to a rotating means, and suction means connected to said continuous passage to pull said cut obstruction material proximally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification