Patent ID: 8870816

Claim:
A balloon catheter comprising: a shaft having a distal end and a proximal end; an expandable inner balloon mounted at the distal end of the shaft, the shaft having an inflation lumen extending therethrough and in fluid communication with an interior region of the inner balloon, an expandable outer balloon positioned around the inner balloon and defining an intermediate region between the inner balloon and the outer balloon, the shaft having a delivery lumen extending therethrough and in fluid communication with the intermediate region, and at least one cutting element on an exterior surface of the inner balloon and positioned entirely within the intermediate region, wherein the at least one cutting element applies cutting or scoring pressure through a wall of the outer balloon, wherein the outer balloon comprises a plurality of pores providing fluid communication between the intermediate region and the exterior of the balloon catheter and the plurality of pores are configured to deliver a bioactive, and wherein the at least one cutting element is not extendable through any of the plurality of pores.