Method and apparatus for treating an arterial lesion
First Claim
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1. A method of treating a lesion in a patient, comprising:
- inserting an arterial access device into an artery through an arterial access location;
positioning at least a portion of the arterial access device into a common carotid artery;
occluding blood flow in at least a portion of the common carotid artery to form a pressure gradient that establishes retrograde blood flow through the common carotid artery such that blood flows into a lumen of the arterial access device;
in addition to establishing retrograde blood flow, actively pumping blood from the common carotid artery to a return location via the arterial access device and a shunt connected to the arterial access device, wherein the arterial access device comprises an elongate member defining an internal lumen that extends from a distal opening at a distal region of the arterial access device to a proximal opening at a proximal region of the arterial access device, wherein the internal lumen receives blood flow through the distal opening from the common carotid artery, and wherein the shunt comprises a lumen connected to the arterial access device at a location between the distal and proximal openings of the arterial access device, and wherein the shunt provides a pathway for blood to flow out of the internal lumen of the arterial access device at a location between the distal and proximal openings of the arterial access device; and
treating the lesion by deploying a stent on the lesion.
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Abstract
One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.
151 Citations
11 Claims
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1. A method of treating a lesion in a patient, comprising:
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inserting an arterial access device into an artery through an arterial access location; positioning at least a portion of the arterial access device into a common carotid artery; occluding blood flow in at least a portion of the common carotid artery to form a pressure gradient that establishes retrograde blood flow through the common carotid artery such that blood flows into a lumen of the arterial access device; in addition to establishing retrograde blood flow, actively pumping blood from the common carotid artery to a return location via the arterial access device and a shunt connected to the arterial access device, wherein the arterial access device comprises an elongate member defining an internal lumen that extends from a distal opening at a distal region of the arterial access device to a proximal opening at a proximal region of the arterial access device, wherein the internal lumen receives blood flow through the distal opening from the common carotid artery, and wherein the shunt comprises a lumen connected to the arterial access device at a location between the distal and proximal openings of the arterial access device, and wherein the shunt provides a pathway for blood to flow out of the internal lumen of the arterial access device at a location between the distal and proximal openings of the arterial access device; and treating the lesion by deploying a stent on the lesion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification