Patent ID: 9694111
Date: 2017-07-04
CPC Classifications: A61B,A61F,A61K,A61L,A61M

Claim:
1. A balloon catheter for delivering a therapeutic agent to a target site in a blood vessel, the balloon catheter comprising a coating layer overlying an exterior surface of a balloon of the balloon catheter, the coating layer comprising a therapeutic agent and at least one first additive, wherein: the balloon catheter is a scoring balloon catheter; the therapeutic agent is selected from the group consisting of paclitaxel, rapamycin, beta-lapachone, biologically active vitamin D, and combinations thereof; and the at least one first additive comprises a PEG fatty ester selected from the group consisting of PEG laurates, PEG oleates, PEG stearates, PEG glyceryl laurates, PEG glyceryl oleates, PEG glyceryl stearates, PEG sorbitan monolaurates, PEG sorbitan monooleates, PEG sorbitan stearates, PEG sorbitan laurates, PEG sorbitan oleates, PEG sorbitan palmitates, and combinations thereof.