Vascular graft bypass
AssigneePercardia, Inc.
InventorPeter J. Wilk
Life of this patent
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Abstract
Improved methods of treatment of diseased or occluded vascular grafts in patients having undergone coronary artery bypass or other bypass surgery are disclosed. Deployment of a conduit in the myocardium at a site distal to the site of attachment of the coronary artery bypass graft allows oxygenated blood to flow from a chamber in the heart directly into the coronary artery, bypassing blockages in the coronary artery and the graft originally used to bypass the coronary artery. To ensure proper positioning, the conduit is delivered through the graft to the myocardium. A new lining for the existing vein graft and methods of delivery are also disclosed.
Claims24
A method for bypassing a coronary artery bypass graft in a patient, comprising:
- delivering a hollow conduit through the coronary artery bypass graft;
- and
- inserting the conduit in the patient's heart wall at a location distal to a site of attachment of the graft, such that the conduit allows blood to flow from a chamber in the patient's heart directly into the coronary artery.
A method for improving the patency of a coronary artery bypass graft having an interior lumen in a patient, comprising:
- inserting a lining into the lumen of said graft.
A method for improving the patency of a coronary artery bypass graft having a lumen in a patient, comprising:
- harvesting a section of vein from the patient, and
- delivering the section of vein to the lumen of the graft, such that the section of vein provides a lining in the lumen of the graft.
A device for improving the patency of a coronary artery bypass graft, comprising an inner lining for said graft.
Dependencies are inferred from the claim text.