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公开(公告)号:US07179269B2
公开(公告)日:2007-02-20
申请号:US10152129
申请日:2002-05-20
IPC分类号: A61B17/22
CPC分类号: A61B17/320758 , A61B17/22 , A61B17/221 , A61B90/39 , A61B2017/22042 , A61B2017/22084 , A61B2017/320733 , A61B2217/005
摘要: An apparatus and system for removing an obstruction from a body lumen simultaneously mechanically dislodges the obstruction, macerates the obstruction, and aspirates the effluent caused thereby. The maceration is effected by directing pressurized fluid to the obstruction, while the obstruction is dislodged by a tip portion formed on the end of a guidewire. The apparatus includes a flexible catheter having at least two channels individually accommodating fluid flow paths towards and away from the obstruction. The guidewire may be disposed in either of the channels or a third channel formed in the flexible catheter. The apparatus also includes a drive unit for rotating the guidewire. The drive unit may be an external drive unit, such as an electrical motor, or may include drive elements formed on the guidewire within a drive chamber, across which the fluid flows and imparts energy against the drive elements to cause rotation of the guidewire.
摘要翻译: 用于从体腔移除阻塞物的装置和系统同时机械地移除阻塞物,使阻塞物浸没并吸出由此引起的流出物。 浸渍是通过将加压流体引导到障碍物来实现的,而障碍物被形成在导丝端部上的尖端部分移动。 该装置包括柔性导管,其具有至少两个通道,其独立地容纳朝向和远离障碍物的流体流动路径。 导丝可以设置在形成在柔性导管中的任一通道或第三通道中。 该装置还包括用于旋转导丝的驱动单元。 驱动单元可以是诸如电动机的外部驱动单元,或者可以包括形成在驱动室内的导丝上的驱动元件,流体流过该驱动元件,并且将能量抵抗驱动元件施加以引起导丝的旋转。