Patent ID: 8556851

Claim:
A balloon catheter system comprising: an outer conduit having an outer surface; an inner conduit having an outer surface, said inner conduit is suitable for passage over a guide wire, said inner conduit is disposed within the lumen of said outer conduit such that the longitudinal axes of said inner and outer conduits are substantially parallel, and positioned such that the distal tip of said inner conduit extends beyond the distal tip of said outer conduit, wherein said inner conduit is capable of being moved along its longitudinal axis in relation to said outer conduit; a balloon having an inner surface and an outer surface, wherein the inner surface of the proximal margin of said balloon is attached to the outer surface of the distal tip of said outer conduit, and the inner surface of the distal margin of said balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of said outer conduit at all times during operation of said catheter, and wherein the distal and/or proximal end portion(s) of said balloon are capable of intussusception upon proximal movement of said inner conduit in relation to said outer conduit to form a cavity within said balloon, such that when the intussuscepted balloon is deflated, said cavity is enlarged trapping therewithin debris and/or particulate matter without the need for a application of externally applied suction; and a fluid port for the introduction of an expansion fluid into the annular space formed between the inner surface of the outer conduit and the outer surface of the inner conduit and therefrom into the lumen of said balloon, and for the removal thereof.