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1. 发明授权

US5201757A Medial region deployment of radially self-expanding stents 失效
标题翻译：径向自扩张支架的内侧部位
公开(公告)号：US5201757A
公开(公告)日：1993-04-13
申请号：US863231
申请日：1992-04-03
申请人： Lawrence R. Heyn , Liann M. Johnson , Matthew T. Yurek , Peter A. Basile , Robert L. Berger
发明人： Lawrence R. Heyn , Liann M. Johnson , Matthew T. Yurek , Peter A. Basile , Robert L. Berger
IPC分类号： A61F2/84 , A61F2/06 , A61F2/82
CPC分类号： A61F2/95 , A61F2/97 , A61F2002/9511 , A61F2002/9517
摘要： An apparatus for deploying a radially self-expanding stent includes proximal and distal sleeves respectively containing proximal and distal end portions of the stent in a reduced radius delivery configuration. The sleeves can abut one another and thus contain the entire length of the stent, or may be used in combination with an outer catheter surrounding the sleeves and containing the medial region of the stent. In either event, once the stent and sleeves are positioned at the intended fixation site, the sleeves are moved axially with respect to one another to permit radial self-expansion of the stent only over its medial region, while the sleeves continue to contain the axially outward regions of the stent. Eventually, upon sufficient movement of the sleeves axially relative to one another, the stent becomes totally free of the sleeves, resulting in radial expansion over the entire stent length. The axial relative movement of the sleeves can be controlled by two or more catheters mounted movably with respect to one another, one catheter integral with each of the sleeves. Alternative arrangements for separating the sleeves include an externally threaded inner catheter, and a dilatation balloon or membrane expandable to force the sleeves apart from one another.
摘要翻译：用于部署径向自扩张支架的装置包括分别容纳缩小的半径递送构造的支架的近端部分和远端部分的近端和远端套管。袖子可以彼此邻接并因此包含支架的整个长度，或者可以与围绕套管的外导管并且包含支架的内侧区域组合使用。在任一情况下，一旦支架和套管定位在预期的固定位置，套筒就相对于彼此轴向移动，以允许支架径向自膨胀仅在其内侧区域上，而套筒继续容纳轴向支架外侧区域。最终，当套筒相对于彼此轴向地充分移动时，支架完全没有套筒，导致整个支架长度上的径向膨胀。袖子的轴向相对运动可以通过相对于彼此可移动地安装的两个或更多个导管来控制，一个导管与每个套筒成一体。用于分离套筒的替代布置包括外螺纹内导管和可膨胀以使套管彼此分开的膨胀球囊或膜。

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