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41. 发明授权

US06398803B1 Partial encapsulation of stents 有权
标题翻译：部分包扎支架
公开(公告)号：US06398803B1
公开(公告)日：2002-06-04
申请号：US09388496
申请日：1999-09-02
申请人： Richard Layne , Sandra Cundy , Debra Bebb
发明人： Richard Layne , Sandra Cundy , Debra Bebb
IPC分类号： A61F206
CPC分类号： A61F2/915 , A61F2/07 , A61F2/89 , A61F2002/072 , A61F2250/0029 , Y10S623/901 , Y10T156/1026 , Y10T156/1056 , Y10T156/1062 , Y10T156/109
摘要： Partially encapsulated stents are made using gaps cut into ePTFE covering material. Ring stents are placed over an inner ePTFE tube (e.g., supported on a mandrel) and are covered by a “lacey” graft sleeve, which is constructed by cutting apertures into an ePTFE tube so that a series of circumferential and longitudinal strips is created. This “lacey” sleeve is then laminated to the inner ePTFE tube to capture the stents. By selecting the size and position of the apertures in the ePTFE covering, it is possible to leave critical parts of the stent unencapsulated to facilitate flexibility and expansion. Alternatively, the gaps can consist of slits cut into the ePTFE covering material. These slits can be cut in any direction including longitudinally, radially, or diagonally. In addition, the slits can be spaced at varying intervals around the covering material to maximize flexibility and expandability. Although a single stent can be used, these approaches lend themselves to use of a plurality of individual ring stents spaced apart along the inner ePTFE tube.
摘要翻译：部分包封的支架使用切入ePTFE覆盖材料的间隙制成。环形支架放置在内部ePTFE管（例如，支撑在心轴上）上并且被“花边”移植套管覆盖，该套筒通过将孔切割成ePTFE管而构成，从而产生一系列周向和纵向条。然后将这种“蕾丝”套筒层压到内部ePTFE管上以捕获支架。通过选择ePTFE覆盖物中的孔的尺寸和位置，可以使支架的关键部分未被包封以便于柔性和膨胀。或者，间隙可以由切割成ePTFE覆盖材料的狭缝组成。这些狭缝可以在包括纵向，径向或对角线的任何方向上切割。此外，狭缝可以围绕覆盖材料以不同的间隔隔开，以最大化灵活性和可扩展性。虽然可以使用单个支架，但是这些方法本身可以使用沿着内部ePTFE管间隔开的多个单个环形支架。

42. 发明授权

US6096027A Bag enclosed stent loading apparatus 有权
标题翻译：袋式封闭式支架装载装置
公开(公告)号：US6096027A
公开(公告)日：2000-08-01
申请号：US310763
申请日：1999-05-12
申请人： Richard Layne
发明人： Richard Layne
IPC分类号： A61F2/82 , A61F2/06 , A61F2/84 , A61B17/00
CPC分类号： A61F2/958 , A61F2/95 , A61F2002/9522
摘要： An apparatus for loading a stent onto or into a catheter. A flexible sterile sleeve is provided to encase the stent as it is pulled through a loading device. The loading device is a simple design utilizing a tapered passageway. The passageway has first diameter at a proximal end which tapers to a second diameter, forming a funnel. The passageway continues at the second diameter forming a tube. The sleeved stent is pulled through the loading device from the proximal end to the distal end, smoothly compressing the stent. Depending on the type of stent and catheter being used, the stent is either crimped onto the catheter as it is pulled through the funnel, or is loaded into a catheter positioned at the distal end of the loading device. The sleeve acts to minimize the frictional forces to which the stent is subjected and to eliminate the longitudinal force that the stent would be subjected to if pushed or pulled directly. The sleeve may be close-ended to provide an additional sterility barrier about the stent.
摘要翻译：用于将支架装载到导管上或其中的装置。提供柔性无菌套筒以在支架被拉动穿过装载装置时包围支架。装载装置是采用锥形通道的简单设计。该通道在近端处具有逐渐变细至第二直径的第一直径，形成漏斗。通道在第二直径处继续形成管。套管支架从近端拉到远端，平滑地压缩支架。根据使用的支架和导管的类型，支架在被拉动通过漏斗时被卷曲到导管上，或者被装载到位于装载装置远端的导管中。套筒用于使支架受到的摩擦力最小化，并且如果直接推动或拉动，则消除支架将受到的纵向力。套筒可以是近端的，以在支架周围提供额外的无菌屏障。

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