公开(公告)号：US5562727A

公开(公告)日：1996-10-08

申请号：US319965

申请日：1994-10-07

申请人： Rodney E. Turk ,  Timothy S. Dickerson ,  Jeffery T. Gotro

发明人： Rodney E. Turk ,  Timothy S. Dickerson ,  Jeffery T. Gotro

IPC分类号： A61F2/82 ,  A61F2/06 ,  A61F2/04

CPC分类号： A61F2/82 ,  A61F2/07 ,  A61F2/945 ,  A61F2002/072 ,  A61F2210/0061

摘要： An intraluminal graft/stent includes a hollow tubular member with inner and outer wall members defining a cavity in which is positioned a time-delay, heat-activated material partially filling the cavity. Upon implantation of the graft/stent in the blood vessel to be repaired, the time-delay, heat-activated material will foam and expand to completely fill the cavity causing the outer wall to sealingly engage the interior wall of the blood vessel. The inner wall, upon expansion, provides a conduit for the flow of blood. Under one embodiment, a flexible support member encircles the outer wall member and, by virtue of its shorter length and smaller cross-sectional size than the outer wall member causes enlarged cuffs to be formed at opposing ends of the graft/stent upon completion of expansion of the time-delay, heat-activated material.

摘要翻译： 腔内移植物/支架包括中空管状构件，其具有限定空腔的内壁和外壁构件，其中定位有部分填充空腔的时间延迟的热活化材料。 将移植物/支架植入待修复的血管中时，延迟时间延长的热活化材料将发泡并膨胀以完全填充空腔，从而使外壁密封地接合血管的内壁。 膨胀后的内壁为血液流动提供了导管。 在一个实施例中，柔性支撑构件环绕外壁构件，并且由于其比外壁构件更短的长度和更小的横截面尺寸，导致在扩张完成时在移植物/支架的相对端处形成扩大的袖带 的延时，热活化材料。