Patent ID: 6511503
Filing Date: 2003-01-28
Classification: A61F

Abstract:
A catheter apparatus for treating a lesion-blocked vessel and capturing emboli flowing through the vessel, comprising:a lesion dilating member for disposition in the vessel at the position of the lesion blockage, the lesion dilating member being expandable to open the vessel at the position of the lesion, and a perfusion member and filter for disposition in the vessel at a position displaced from the lesion, the perfusion member having proximal and distal ends with the filter attached to the outer surface of the perfusion member at a location distal to the proximal end of the perfusion member, wherein the outer surface of the perfusion member has a plurality of annularly spaced peaks and channels formed between adjacent peaks and the filter to allow the flow of a fluid to pass through the channels and the filter is made from a material which allows the fluid to pass but not emboli.