公开(公告)号：US20090171279A1

公开(公告)日：2009-07-02

申请号：US12005176

申请日：2007-12-26

申请人： John A. Brumleve ,  Frank J. Fischer ,  Kian Olsen

发明人： John A. Brumleve ,  Frank J. Fischer ,  Kian Olsen

IPC分类号： A61M25/10

CPC分类号： A61M25/10184 ,  A61B1/00068 ,  A61B1/00082 ,  A61B1/015 ,  A61M25/10185 ,  A61M25/104 ,  A61M39/22 ,  A61M2039/229

摘要： A balloon catheter assembly included a catheter provided with a distal end and a proximal end and at least one inflation lumen in the catheter. The inflation lumen includes a distal end and a proximal end. An inflatable balloon is provided at the distal end of the catheter and in fluid communication with the distal end of said inflation lumen. The proximal end of the inflation lumen is able to be coupled to a source of fluid. A flow controller is coupled between the inflation lumen and the fluid source, the flow controller being adjustable by an operator of the balloon catheter assembly so as to adjust the flow of inflation fluid to the balloon. In one embodiment, the flow controller includes a manually operable control actuator and a plurality of discrete flow configurations provided in the form of flow through holes in the flow controller. In another embodiment the flow controller includes a manually operable control actuator and a gradually varying flow passage therethrough by means of a coupling channel within the flow controller of varying channel dimension.

摘要翻译： 气囊导管组件包括设置有导管中的远端和近端以及至少一个充气腔的导管。 充气腔包括远端和近端。 可膨胀气囊设置在导管的远端并且与所述充气腔的远端流体连通。 充气腔的近端能够连接到流体源。 流量控制器耦合在充气腔和流体源之间，流量控制器可由气囊导管组件的操作者调节，以便调节膨胀流体流向球囊。 在一个实施例中，流量控制器包括可手动操作的控制致动器和以流量控制器中的流通孔形式提供的多个离散流配置。 在另一个实施例中，流量控制器包括可手动操作的控制致动器以及通过在不同通道尺寸的流量控制器内的耦合通道穿过的逐渐变化的流动通道。

公开(公告)号：US08313493B2

公开(公告)日：2012-11-20

申请号：US12170923

申请日：2008-07-10

申请人： Frank J. Fischer

发明人： Frank J. Fischer

IPC分类号： A61F11/00

CPC分类号： A61M25/09 ,  A61M2025/09116

摘要： A hydraulic guidewire advancement system for enhancing access through lesions or occlusions in distal regions of a patient's vasculature includes a catheter comprising a sheath, a guidewire lumen, and a proximal catheter port connected to a hydraulic driver. A hydraulic guidewire is coaxially disposed through the guidewire lumen, the hydraulic guidewire comprising a piston movably disposed in the guidewire lumen, the piston forming a seal with an interior surface of the sheath. The hydraulic driver is configured to generate hydraulic pressure against the piston sufficient to advance or retract the hydraulic guidewire relative to the catheter. The hydraulic driver can apply positive or negative pressure to the piston, so as to repeatedly contact and break through the lesion with the distal end of the hydraulic guidewire.

摘要翻译： 一种用于增强患者脉管系统的远端区域中的损伤或闭塞的通路的液压导丝进线系统包括导管，其包括护套，导丝管腔和连接到液压驱动器的近端导管端口。 液压导丝线同轴地设置穿过导丝管腔，液压导丝线包括可移动地设置在导丝管腔中的活塞，活塞与护套的内表面形成密封。 液压驱动器构造成产生足以使液压导丝相对于导管推进或缩回的足够的液压。 液压驱动器可以对活塞施加正压或负压，以便与液压导丝的远端反复接触并穿过病变。