公开(公告)号：US07938820B2

公开(公告)日：2011-05-10

申请号：US11206680

申请日：2005-08-18

申请人： Mark W. L. Webster ,  Jason A. Galdonik ,  Matthew F. Ogle

发明人： Mark W. L. Webster ,  Jason A. Galdonik ,  Matthew F. Ogle

IPC分类号： A61M25/00

CPC分类号： A61M25/0041 ,  A61B17/22 ,  A61B2017/22039 ,  A61B2217/005 ,  A61M25/005 ,  A61M25/0052 ,  A61M25/0054 ,  A61M25/0068 ,  A61M25/007 ,  A61M25/0074 ,  A61M25/008 ,  A61M25/10 ,  A61M2025/0063 ,  A61M2025/0183 ,  A61M2025/1052

摘要： Thrombectomy catheters are presented that have curved tip portions. A suction lumen extends from at or near the proximal end of the catheter to a suction port at or near the tip portion of the catheter. The curves of the thrombectomy catheter can be selected to place a suction port at or near a vessel wall for the more effective removal of thrombus resulting from directing the suction in the direction of the thrombus. In some embodiments, the tip portion of the catheter can be transitioned from a first configuration for delivery of the catheter into the vessel to a second more curved configuration with a desired design for application of suction. The catheter can be moved in a circumferential and/or lateral direction to cover selected portions of the inner vessel wall. In some embodiments, a partially occlusive structure can be used to reduce and/or redirect flow within the vessel to improve performance of the thrombectomy.

摘要翻译： 呈现出具有弯曲尖端部分的血栓切除导管。 吸入腔从导管的近端处或附近延伸到导管尖端部分处或附近的吸入口。 可以选择血栓切除术导管的曲线以将血管口置于血管壁或血管壁附近，以便更有效地从血栓方向引导吸引血栓。 在一些实施例中，导管的尖端部分可以从用于将导管输送到容器中的第一构型转变成具有用于施加抽吸的期望设计的第二更弯曲构造。 导管可以在周向和/或横向移动以覆盖内部血管壁的选定部分。 在一些实施方案中，可以使用部分封闭结构来减少和/或重定向血管内的流动，以改善血栓切除术的性能。