Patent ID: 8343089

Claim:
A method of treating a lesion in a carotid artery of a patient having an arterial blood system and a venous blood system, comprising: making a transcervical incision to expose a region of a common carotid artery; positioning an arterial access device in the common carotid artery through the transcervical incision, wherein the arterial access device comprises a distal insertable length; occluding blood flow in at least a portion of the common carotid artery to establish retrograde blood flow through the common carotid artery such that blood flows into a lumen of the arterial access device; shunting blood from the common carotid artery to the venous system of the patient via the arterial access device and a shunt connected to the arterial access device, wherein the arterial access device comprises an elongate member defining the lumen of the arterial access device, and wherein the lumen of the arterial access device 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 the lumen of the arterial access device configured for receiving retrograde blood flow through the distal opening from the common carotid artery, and wherein the shunt comprises a sidearm connected to the arterial access device at a location between the distal and proximal openings of the arterial access device, and wherein the internal shunt lumen 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.