Atherectomy system with a sleeve
AssigneeSurgical Systems & Instruments, Inc.
InventorSamuel Shiber
Life of this patent
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Abstract
An atherectomy system for removing an obstruction from within a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible rotary catheter for coring and ingesting obstruction material, insertable into the vessel over the flexible guide-wire, the flexible rotary catheter having coring means at its distal end and coupling means for connecting it to a power source, at its proximal end, a sleeve in which the flexible rotary catheter is slidably disposed, the sleeve having a window near its open distal end.
Claims14
An atherectomy system for removing an obstruction from within a patient's vessel, comprising in combination:
- a flexible guide-wire insertable into the vessel,
- a flexible rotary catheter for cutting and ingesting obstruction material, insertable into the vessel over said flexible guide-wire, said flexible rotary catheter having a blade at its distal end and coupling means for connecting it to a power source, at its proximal end,
- a sleeve, in which said flexible rotary catheter is slidably and rotatably disposed, having a window near its open distal end.
A process for removing an obstruction from a vessel, comprising the following steps:
- inserting into a vessel and through an obstruction therein, a flexible guide wire,
- distally advancing over the flexible guide-wire and through the obstruction a flexible catheter,
- distally advancing, over the flexible catheter, a sleeve having a window near its open distal end and placing the window in the obstruction,
- biassing the window against the obstruction urging obstruction material to enter the sleeve through the window,
- proximally retracting the flexible catheter into the sleeve past the window,
- distally advancing the flexible catheter in said sleeve past the window, cutting and ingesting the obstruction material that has entered the sleeve through said window.
Dependencies are inferred from the claim text.