Patent ID: 8740961
Filing Date: 2014-06-03
Classification: A61B,A61F,A61M

Abstract:
1. A method of treating a target site within a vascular channel of the body using a catheter assembly, the catheter assembly comprising (1) a proximal occluder having an inner lumen and an occlusion element at its distal end and (2) a distal occluder comprising a wire having an occlusion element at a distal end of the wire, the method comprising: positioning the proximal occluder in a vascular channel-occluding state within the vascular channel with its occlusion element at a first position proximal of a target site thereby occluding the vascular channel at the first position, the vascular channel having an inner wall; advancing the distal occluder through the lumen of the proximal occluder to position the occlusion element of the distal occluder in a vascular channel-occluding state within the vascular channel at a second position distal of the target site thereby occluding the vascular channel at the second position and thereby defining a region between the distal and proximal occluders; injecting an agent into the region; advancing an interventional catheter over the wire of the distal occluder to position an interventional element between the two occlusion elements, the interventional element comprising a stent structure configured to support and maintain pressure against the inner wall and an expandable balloon located within the stent structure; performing an intervention at the target site with the interventional element while the occlusion elements of the distal and proximal occluders are in their vascular channel-occluding states and the agent is in the region, wherein performing the intervention comprises: removing the interventional catheter, including the collapsed balloon and the collapsed stent structure of the interventional element, and the catheter assembly from the vascular channel.