| 摘要 |
<p>Methods and apparatus for delivering and reducing the profile of a catheter for delivering a stent graft including integral branch connections. A configuration of a branch vessel stent graft, including a branch vessel connection connecting a very thin walled PTFE tubular branch to a woven polyester main body. The connection is made by using by overmolding the PTFE on a polymer ring, such as silicone. In another configuration, a main body portion includes branch portions where ends of the branch portions are connected to leads extending from a sheath of a stent graft compressed in a delivery catheter. The leads are routed into accessible branches of body lumens and act as pullwires to pull the branch portions into position in their respective branches as the delivery catheter is released to deploy the main body of the stent graft. Apertures in the main body portion are alignable with the branch lumens and an anchoring stent is separately deployed to extend and/or main the extension of the branch portion in the branch lumen and anchor it therein.</p> |
