Atherectomy system and method of using the same
AssigneeSurgical Systems & Instruments, Inc.
InventorSamuel Shiber
Life of this patent
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Abstract
An atherectomy system for coring, ingesting and removing an obstruction from within a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible rotary catheter being rotatably disposed and insertable into the vessel over the flexible guide-wire, having a rotary coring device at its distal end for making a ciruclar cut in an obstruction located in front of the rotary coring device, relative motion between the inner-wall and the flexible guide-wire mechanically enabling the ingested obstruction material into the catheter.
Claims25
An atherectomy system for coring, ingesting and removing an obstruction from within a patient's vessel, comprising in combination:
- a flexible guide-wire insertable into the vessel,
- a flexible rotary catheter, rotatably disposed and insertable into the vessel over said flexible guide-wire, having at its distal end a rotary coring means for making a circular cut in an obstruction located in front of it, and coupling means at its proximal end, and,
- a continuous passage, for ingesting the cored obstruction material, defined between said flexible rotary catheter and said flexible guide-wire, where the relative motion between said flexible rotary catheter and said flexible guide-wire assists in moving said ingested obstruction material proximally in said continuous passage.
A process for removing an obstruction from an vessel with an atherectomy system, comprising the following steps:
- inserting into a vessel, into an obstruction, a flexible guide-wire,
- advancing over the flexible guide-wire a rotary coring means located at a distal end of an atherectomy catheter,
- advancing and rotating the rotary coring means to the obstruction and coring the obstruction,
- mechanically assisting in moving the cored material proximally in a continuous passage defined between the atherectomy catheter and the flexible guide-wire,
- removing the atherectomy system containing the obstruction material out of the vessel.
Dependencies are inferred from the claim text.