| 摘要 |
<p>A drug delivery system consistent with one aspect of the present invention is a balloon catheter having a drug coated balloon and an enlarged portion distal to the drug coated balloon, the enlarged portion having a diameter larger than the diameter of the pleated balloon when wrapped (aka folded) about the inner shaft of the balloon catheter, and a selectively retractable tubular member surrounding at least the pleated and wrapped balloon and having a distal end located in circumferential contact with the enlarged portion distal to the drug coated balloon to inhibit blood flow proximally into the distal end of the selectively retractable tubular member.</p> |
