Catheter for diagnostic imaging and therapeutic procedures
    1.
    发明申请
    Catheter for diagnostic imaging and therapeutic procedures 审中-公开
    导管用于诊断成像和治疗程序

    公开(公告)号:US20070073271A1

    公开(公告)日:2007-03-29

    申请号:US10575318

    申请日:2004-11-15

    IPC分类号: A61M25/16 A61M25/18

    摘要: A catheter for use in introducing fluid into a vessel or other bodily structure. The catheter comprises a stem and a restrictor. The stem has approximate a distal end thereof a porous section that defines microholes distributed thereabout, which are inclined by a predetermined angle in the proximal direction. Affixed to the stem, the restrictor includes a conically-shaped valve with an apex thereof defining an opening and pointing in the proximal direction. The opening generally decreases in size as the conically-shaped valve flattens out distally as the pressure of the fluid within the tip increases. The forces of the fluid flowing out of the opening of the restrictor and out of the microholes of the stem substantially balance thereby substantially eliminating both recoil and whipping of the catheter, thus enabling its position to remain exceptionally stable while the fluid is finely dispersed therefrom in a cloud-like form.

    摘要翻译: 用于将流体引入血管或其他身体结构中的导管。 导管包括杆和限流器。 杆具有近端的远端,多孔部分限定分布在其周围的微孔,其沿近端方向倾斜预定角度。 限流器被固定在杆上,该限流器包括一个圆锥形的阀,其顶点限定开口并指向近端方向。 当锥形阀门在尖端内的流体的压力增加时,锥形阀门向远侧平坦化,开口的尺寸通常减小。 从限流器的开口流出并离开杆的微孔的流体的力基本上平衡,从而基本上消除了导管的反冲和鞭打,从而使得其位置在流体从其中细分散而保持非常稳定的状态 一个云状的形式。

    Fluid delivery system having pump systems, check valves and a removable patient interface
    4.
    发明授权
    Fluid delivery system having pump systems, check valves and a removable patient interface 有权
    流体输送系统具有泵系统,止回阀和可移除的患者接口

    公开(公告)号:US06972001B2

    公开(公告)日:2005-12-06

    申请号:US10790299

    申请日:2004-03-01

    摘要: A fluid delivery system for delivery of an injection fluid to a patient generally includes a first pump system, a second pump system, a patient interface in removable fluid connection with the first and second pump systems, and a fluid path in fluid connection between the first and second pump systems and the patient interface. The fluid path preferably includes a housing member defining a first inlet, a second inlet and an outlet. The first and second pump systems are placed in fluid connection with the respective first and second inlets of the housing member and the patient interface is placed in removable fluid connection with the outlet of the housing member. A first check valve is in fluid connection between an outlet of the first pump system and the first inlet of the housing member, and a second check valve is in fluid connection between an outlet of the second pump system and the second inlet of the housing member.

    摘要翻译: 用于将注射流体输送到患者的流体递送系统通常包括第一泵系统,第二泵系统,与第一和第二泵系统可移动流体连接的患者接口,以及在第一和第二泵系统之间流体连接的流体路径 和第二泵系统和患者接口。 流体路径优选地包括限定第一入口,第二入口和出口的壳体构件。 第一和第二泵系统被放置成与壳体构件的相应的第一和第二入口流体连接,并且患者接口被放置成与壳体构件的出口可移动的流体连接。 第一止回阀在第一泵系统的出口和壳体构件的第一入口之间流体连接,并且第二止回阀在第二泵系统的出口和壳体构件的第二入口之间流体连接 。