发明名称 |
Percutaneous methods and apparatus for creating native tissue venous valves |
摘要 |
Percutaneous methods and apparatus for forming a venous valve from autologous tissue by creating at least one subintimal longitudinal dissection that forms at least one flap of intimal tissue are disclosed. In one method, a balloon catheter having a dissecting blade mounted thereon is delivered to a target site where a new venous valve is to be created. The balloon is inflated to deploy the blade against the vein wall, and the catheter is longitudinally translated such that the blade dissects a subintimal layer of the vein wall. The balloon is subsequently deflated such that the blade pulls a flap of the dissected tissue towards the vein lumen, thereby creating a leaflet and corresponding pocket/sinus in the vein that collectively act as a monocuspid venous valve. Methods of forming new bicuspid and tricuspid venous valves utilizing two or three dissecting blades mounted on the balloon are also disclosed.
|
申请公布号 |
US8377083(B2) |
申请公布日期 |
2013.02.19 |
申请号 |
US20100767932 |
申请日期 |
2010.04.27 |
申请人 |
MEDTRONIC VASCULAR, INC.;MAUCH KEVIN;GREEN DOUGLAS |
发明人 |
MAUCH KEVIN;GREEN DOUGLAS |
分类号 |
A61B17/32;A61M25/10 |
主分类号 |
A61B17/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|