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1. 发明授权

US5645559A Multiple layer stent 失效
标题翻译：多层支架
公开(公告)号：US5645559A
公开(公告)日：1997-07-08
申请号：US172516
申请日：1993-12-21
申请人： Steven W. Hachtman , Liann M. Johnson , Scott T. Johnson , Joseph E. Laptewicz, Jr. , Paul J. Thompson , Amjad Ahmad , John A. Scholl , Richard J. Thompson
发明人： Steven W. Hachtman , Liann M. Johnson , Scott T. Johnson , Joseph E. Laptewicz, Jr. , Paul J. Thompson , Amjad Ahmad , John A. Scholl , Richard J. Thompson
IPC分类号： A61F2/00 , A61F2/82 , A61F2/90 , A61M29/00
CPC分类号： A61F2/90 , A61F2/07 , A61F2/95 , A61F2/966 , A61F2/0077 , A61F2/852 , A61F2002/072 , A61F2002/821 , A61F2002/9517 , A61F2002/9534 , A61F2002/9665 , A61F2210/0076 , A61F2220/0033 , A61F2220/005 , A61F2230/0054 , A61F2230/0078 , A61F2250/0063 , A61F2250/0097 , A61M2025/0008 , A61M25/1018
摘要： A radially self-expanding stent having multiple layers includes a medial region and proximal and distal cuffs having diameters greater than the medial region diameter when the stent is in the relaxed state. A silicone coating circumscribes at least the medial region of the stent. A deployment device for the stent includes an inner tube surrounded by the stent along with an outer tube that radially compresses the stent. A low durometer sleeve, fixed to the inner tube and in surface engagement with the compressed stent, tends to fix the axial position of the stent relative to the inner tube whenever the outer tube is moved axially relative to the inner tube. Consequently, precision in stent placement and the ability to recapture a partially deployed stent are enhanced.
摘要翻译：具有多层的径向自扩张支架包括中间区域和当支架处于松弛状态时具有大于中间区域直径的直径的近端和远端箍。硅胶涂层至少包围支架的内侧区域。用于支架的展开装置包括由支架围绕的内管以及径向压缩支架的外管。每当外管相对于内管轴向移动时，固定到内管并与压缩支架表面接合的低硬度套筒倾向于固定支架相对于内管的轴向位置。因此，增强了支架放置的精度和再次部分展开支架的能力。

2. 发明授权

US06491718B1 Intra vascular stent 有权
标题翻译：血管内支架
公开(公告)号：US06491718B1
公开(公告)日：2002-12-10
申请号：US09678049
申请日：2000-10-03
申请人： Amjad Ahmad
发明人： Amjad Ahmad
IPC分类号： A61F206
CPC分类号： A61F2/91 , A61F2/915 , A61F2/958 , A61F2002/91508 , A61F2002/91516 , A61F2002/91541 , A61F2002/91558 , A61F2210/0076 , A61F2230/0054
摘要： A radially expandible intra vascular stent 20 is provided with improved radially expandible strength due to increased amounts of metal surface area while flexibility is increased due to the unique stent wall surface pattern. In the un-expanded form, the stent wall surface pattern 58 resembles a series of linked S-shapes 22 formed radially about the tube with interconnections 21 between the radial rows of S's 22 with alternating adjacent S's. Longitudinally, the un-expanded stent resembles longitudinal rows of pattern series of an S 24, S 24, reverse S 26, reverse S 26 shapes. This series repeats itself along the longitudinal surface of the stent. The longitudinal pattern is interconnected by the radial S's 21. When expanded for implantation within a lumen wall, the stent 20 unfolds to wall surface pattern 60 having linked parallelograms 52 along its longitudinal axis 40 while radially having alternating connected and disjoined struts forming a pattern similar to a butterfly shape 56, along its radial axis 50. The stent 20 can be non-uniform when expanded to accommodate the unique size and shape of the lumen into which it is implanted. The narrow outside diameter of the un-expanded stent eliminates the usual preliminary lumen expansion step. A multi-layer stent 70 is also provided. A method of implantation and a method of manufacture are also provided.
摘要翻译：径向可扩张的血管内支架20由于独特的支架壁表面图案而由于金属表面积的增加而增加径向可扩张的强度，而弹性增加。在未展开形式中，支架壁表面图案58类似于围绕管径向形成的一系列连接的S形22，在S的22的径向行之间具有相互交替的相邻S的相互连接21。纵向地，未扩张的支架类似于S 24，S 24，反向S 26，反向S 26形状的图案序列的纵向行。该系列沿着支架的纵向表面重复。纵向图案通过径向S 21互连。当扩张用于在管腔壁内植入时，支架20展开为沿着其纵向轴线40具有连接的平行四边形52的壁表面图案60，同时径向地具有交替连接和分离的支柱，形成类似的图案沿着其径向轴线50延伸到蝴蝶形状56.当扩张时支架20可以是不均匀的，以适应植入其中的内腔的独特尺寸和形状。未扩张的支架的窄的外径消除了通常的预管腔扩张步骤。还提供了多层支架70。还提供了一种植入方法和制造方法。

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