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Percutaneous methods for apparatus for creating native tissue venous valves
专利权人:
Kevin Mauch
发明人:
Kevin Mauch,Maria Arreguin
申请号:
US12767938
公开号:
US08460323B2
申请日:
2010.04.27
申请国别(地区):
US
年份:
2013
代理人:
摘要:
Percutaneous methods and apparatuses for forming a venous valve from autologous tissue. A catheter having a retractable dissecting system received therein is delivered to a target location where a new venous valve is to be created. A distal balloon or other radially-expandable component mounted on the catheter is expanded against the vein wall, and the dissecting system is proximally retracted to deploy one or more dissecting components that dissect a subintimal layer of the vein wall. Radial expansion of the dissecting component(s) within the vein wall creates one or more leaflets and corresponding pocket/sinuses in the vein that collectively act as a venous valve, and/or the radially-expandable component of the catheter is subsequently collapsed such that the dissecting component(s) each pull a flap of the dissected tissue towards the vein lumen to create one or more leaflet(s) and corresponding pocket/sinuses in the vein.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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