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PERCUTANEOUS HEART VALVE DELIVERY SYSTEMS
专利权人:
CALIFORNIA INSTITUTE OF TECHNOLOGY
发明人:
KHERADVAR, ARASH,KELLY, GREGORY,GHARIB, MORTEZA
申请号:
EP13775978
公开号:
EP2836171A4
申请日:
2013.04.12
申请国别(地区):
EP
年份:
2016
代理人:
摘要:
Embodiments described herein address the need for improved catheter devices for delivery, repositioning and/or percutaneous retrieval of the percutaneously implanted heart valves. One embodiment employs a plurality of spring-loaded arms releasably engaged with a stent frame for controlling expansion for valve deployment. Another embodiment employs a plurality of filaments passing through a distal end of a pusher sleeve and apertures in a self-expandable stent frame to control its state of deployment. With additional features, lateral positioning of the stent frame may also be controlled. Yet another embodiment includes plurality of outwardly biased arms held to complimentary stent frame features by overlying sheath segments. Still another embodiment integrates a visualization system in the subject delivery system. Variations on hardware and methods associated with the use of these embodiments are contemplated in addition to those shown and described.
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中国工程科技知识中心
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