Apparatus and method for treating cardiovascular diseases

摘要

An apparatus for treating cardiovascular diseases includes an expandable support member having oppositely disposed proximal and distal end portions and a main body portion between the end portions for positioning in a blood vessel. The proximal end portion of the expandable support member includes a plurality of wing members that extend from the main body portion. Each of the wing members is for engaging at least a portion of an antrum of a cardiac chamber surrounding the blood vessel. At least a portion of the expandable support member is treated with at least one therapeutic agent for eluting into the blood vessel, the cardiac chamber, and/or cardiac tissue. The expandable support member is made of wire-mesh, and at least a portion of the expandable support member may be made of a bioabsorbable material.

主权项

1. An apparatus for placement in a blood vessel to treat cardiac arrhythmias, said apparatus comprising:
an expandable support member having a first mesh-like configuration, wherein at least a portion of the expandable support member is treated with a therapeutic agent; a plurality of wing members that extend from only a proximal end of said expandable support member, each of said plurality of wing members independently having a second mesh-like configuration, each of said plurality of wing members being radially spaced apart from one another, and each of said plurality of wing members having a free end shaped to conform to a portion of an antrum of a cardiac chamber surrounding the blood vessel to engage with the portion of the antrum of the cardiac chamber surrounding the blood vessel; and an electrical mechanism coupled to said expandable support member for delivering electrical energy to at least a portion of an ostium of the blood vessel to ablate tissue.