APPARATUS AND METHODS FOR REDUCING EMBOLIZATION DURING TREATMENT OF CAROTID ARTERY DISEASE
First Claim
1. A method of delivering an interventional instrument for treating a stenosis in an internal carotid artery comprising:
- a) inserting an occlusion mechanism having a distal occlusion member and a balloon into a person'"'"'s vasculature;
b) positioning the distal occlusion member to a desired position in the common carotid artery and the balloon to a desired position in the external carotid artery; and
c) operating the distal occlusion member and the balloon to occlude the external carotid artery and the central carotid artery.
1 Assignment
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Accused Products
Abstract
Methods and apparatus are provided for removing emboli during an angioplasty, stenting or surgical procedure comprising a catheter having an occlusion element, an aspiration lumen, and a blood outlet port in communication with the lumen, a guide wire having a balloon, a venous return sheath with a blood inlet port, and tubing that couples the blood outlet port to the blood inlet port. Apparatus is also provided for occluding the external carotid artery to prevent reversal of flow into the internal carotid artery. The pressure differential between the artery and the vein provides reverse flow through the artery, thereby flushing emboli. A blood filter may optionally be included in-line with the tubing to filter emboli from blood reperfused into the patient.
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Citations
5 Claims
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1. A method of delivering an interventional instrument for treating a stenosis in an internal carotid artery comprising:
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a) inserting an occlusion mechanism having a distal occlusion member and a balloon into a person'"'"'s vasculature; b) positioning the distal occlusion member to a desired position in the common carotid artery and the balloon to a desired position in the external carotid artery; and c) operating the distal occlusion member and the balloon to occlude the external carotid artery and the central carotid artery. - View Dependent Claims (2, 3, 4, 5)
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Specification