Claims
- 1. A method for treating an occlusion or a constriction in a bodily conduit passageway having an inner surface, comprising:maneuvering a flexible guide wire through the passageway to the occlusion or constriction; maneuvering a flexible, elongated catheter through the passageway to the occlusion or constriction, said catheter having a distal end and a proximal end, said catheter provided with a hollow treatment lumen extending within said catheter, said catheter further provided with an exterior surface and a dilatation balloon affixed to a portion of said exterior surface at approximately said distal end of said catheter, said catheter further provided with a centering balloon affixed to a portion of said exterior surface at approximately said distal end of said catheter; inflating and deflating said dilatation balloon at least once to reduce the occlusion or open the constriction; inflating said centering balloon after said dilatation balloon has been deflated; maneuvering a radiation source through said hollow treatment lumen to the occlusion or the constriction; treating the occlusion or constriction for a period of time with said radiation source; deflating said centering balloon; removing said guide wire, said radiation source and said catheter from the passageway.
CROSS REFERENCE TO RELATED APPLICATION
This application is a divisional of application Ser. No. 08/713,696, filed Sep. 13, 1996, now U.S. Pat. No. 5,947,924 which is incorporated herein by reference.
US Referenced Citations (39)
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