Victor Leo Schoenle,Walter John Dobrovolny,Rainer Schnabel
申请号：
US13027744
公开号：
US20120046599A1
申请日:
2011.02.15
申请国别(地区):
US
年份:
2012
代理人:
摘要：
The invention provides a system, device and method for localized application of therapeutic substances within a biological conduit after the lumen wall has been scored by an eccentric scoring head. One embodiment comprises radial scoring with the eccentric scoring head, with a therapeutic agent coated balloon inflated distal to the scoring and dragged proximally through the scoring. Another embodiment comprises inflation of two anchor balloons on either side of scoring with subsequent inflation of a therapeutic agent coated balloon therebetween which causes the distance between anchor balloons to increase, thus stretching the scoring crevices while applying the agent therein with subsequent closure of crevices on deflation of anchor and application balloons. Another embodiment comprises an inflated anchor balloon with a threaded scoring device wherein the scoring members are coated with agent and rotation of the threaded device enables travel in the proximal direction away from anchor balloon.
