Drug-eluting stent and delivery system with tapered stent in shoulder region,申请号US201314017548-传众专利搜索

Drug-eluting stent and delivery system with tapered stent in shoulder region

申请公布号：US8852260(B2)

申请号：US201314017548

申请日期：2013.09.04

申请公布日期：2014.10.07

申请人：

Abbott Cardiovascular Systems Inc.

发明人：Pacetti Stephen Dirk

分类号：A61F2/06;A61L31/16;A61F2/915;A61F2/82;A61F2/91;A61F2/958

主分类号：A61F2/06

代理机构：

Fulwider Patton LLP

代理人：Fulwider Patton LLP

地址：Santa Clara CA US

摘要：A drug-eluting stent delivery system for the treatment of edge restenosis in a blood vessel. The drug-eluting stent delivery system has a balloon disposed about at least a portion of a catheter, the balloon having a first end and a second end and a working length therebetween, the first end and the second end each including a tapered portion, each tapered portion being attached to the catheter, the balloon being inflatable from a collapsed configuration to an inflated configuration. A drug-eluting stent contacts a wall of the blood vessel to maintain the patency of the vessel. The drug-eluting stent has a first end and a second end, the first end and the second end each including a tapered portion, wherein the drug-eluting stent is disposed over the balloon such that at least a portion of the first end and the second end of the balloon are covered by the tapered drug-eluting stent. A method for making the same is also disclosed herein.

主权项：1. A stent delivery system, comprising: a tubular catheter; a balloon about at least a portion of the catheter, the balloon having a first end and a second end and a working length therebetween, the first end and the second end each including a tapered portion, each tapered portion being attached to the catheter, the balloon being inflatable from a collapsed configuration, wherein the working length and at least a portion of each tapered portion are substantially flattened, to an inflated configuration; a drug-eluting stent configured to contact a wall of a blood vessel so as to maintain the patency of the vessel, the drug-eluting stent having a first end and a second end, the first end and the second end including a tapered portion; the drug-eluting stent having a therapeutic drug coated thereon; and the drug-eluting stent being mounted on the balloon such that at least a portion of the first end and the second end of the balloon are covered by the tapered portion of the drug-eluting stent; wherein the balloon in a collapsed configuration includes a taper angle of 2° to 30° as measured from lateral edges of the balloon relative to a longitudinal axis of the catheter.