Pressure isolation mechanisms and fluid delivery systems including pressure isolation mechanisms
    9.
    发明授权
    Pressure isolation mechanisms and fluid delivery systems including pressure isolation mechanisms 失效
    压力隔离机构和流体输送系统,包括压力隔离机构

    公开(公告)号:US06866654B2

    公开(公告)日:2005-03-15

    申请号:US10237139

    申请日:2002-09-06

    IPC分类号: A61M5/145 A61M31/00 A61M5/00

    摘要: A pressure isolation mechanism for use in a medical procedure includes a lumen, an isolation port in fluid connection with the lumen, and a valve having a first state and a second state. The first state occurs when the lumen and the isolation port are connected. The second state occurs when the lumen and the isolation port are disconnected. The lumen remains open for flow of fluid therethrough in the first state and in the second state. The valve is preferably spring-biased in the first state and is switchable to the second state when fluid pressure in the lumen reaches a predetermined pressure level. Alternately, an actuator can control the state of the valve. A pressure transducer can be in fluid connection with the isolation port of the pressure isolation mechanism. A fluid delivery system includes a syringe and a pressure isolation mechanism as described above.

    摘要翻译: 用于医疗过程的压力隔离机构包括管腔,与内腔流体连接的隔离口以及具有第一状态和第二状态的阀。 当管腔和隔离口连接时,发生第一种状态。 当管腔和隔离端口断开时,发生第二种状态。 在第一状态和第二状态下,内腔保持打开以使流体流过其中。 优选地,阀在第一状态下被弹簧偏置,并且当内腔中的流体压力达到预定压力水平时可切换到第二状态。 或者,致动器可以控制阀的状态。 压力传感器可以与压力隔离机构的隔离端口流体连接。 流体输送系统包括注射器和如上所述的压力隔离机构。

    Fluid delivery system including a valve and a pressure transducer
    10.
    发明授权
    Fluid delivery system including a valve and a pressure transducer 有权
    流体输送系统包括阀和压力传感器

    公开(公告)号:US08852147B2

    公开(公告)日:2014-10-07

    申请号:US11017324

    申请日:2004-12-20

    摘要: A pressure isolation mechanism for use in a medical procedure includes a lumen, an isolation port in fluid connection with lumen, and a valve having a first state and a second state. The first state occurs when the lumen and the isolation port are connected. The second state occurs when the lumen and the isolation port are disconnected. The lumen remains open for flow of fluid therethrough in the first state and in the second state. The valve is normally in the first state and is switchable to the second state when fluid pressure in the lumen reaches a predetermined pressure level. A pressure transducer can be in fluid connection with the isolation port of the pressure isolation mechanism A fluid delivery system includes a manually operated syringe and a pressure isolation mechanism as described above.

    摘要翻译: 用于医疗过程的压力隔离机构包括内腔,与内腔流体连接的隔离端口以及具有第一状态和第二状态的阀。 当管腔和隔离口连接时,发生第一种状态。 当管腔和隔离端口断开时,发生第二种状态。 在第一状态和第二状态下,内腔保持打开以使流体流过其中。 阀通常处于第一状态,并且当内腔中的流体压力达到预定压力水平时可切换到第二状态。 压力传感器可以与压力隔离机构的隔离端口流体连接。 流体输送系统包括手动操作的注射器和如上所述的压力隔离机构。