System and method for tension-activated fluid control
    1.
    发明申请
    System and method for tension-activated fluid control 失效
    张力活化流体控制系统和方法

    公开(公告)号:US20070078380A1

    公开(公告)日:2007-04-05

    申请号:US10946269

    申请日:2004-09-21

    IPC分类号: A61M1/00 A61M37/00 A61M5/00

    摘要: A medication infusion system may include a controller and a reservoir module including a reservoir containing medication to be delivered to an internal wound site via the controller. The controller may have a peristaltic pump driven by a motor to urge medication to flow toward the internal wound site, through a conduit. When the conduit is not tensioned via engagement with the pump, a valve blocks fluid flow to prevent unrestricted flow of medication. The valve may have a tapered plunger separated from an annular valve seat by a portion of the conduit that elongates under tension to enable withdrawal of the plunger from the valve seat. Alternatively, the valve may have features such as a spherical plunger between two annular valve seats, a rigid tubular member biased with respect to the conduit, or an opening in the conduit that moves axially or radially to enable fluid flow.

    摘要翻译: 药物输注系统可以包括控制器和储存器模块,其包括含有经由控制器输送到内部伤口部位的药物的容器。 控制器可以具有由马达驱动的蠕动泵,以通过导管促使药物流向内部伤口部位。 当导管没有通过与泵的接合而张紧时,阀阻止流体流动以阻止药物的不受限制的流动。 阀可以具有锥形柱塞,该锥形柱塞通过管道的一部分在环形阀座处分开,在张力下伸长以使柱塞从阀座排出。 或者,阀可以具有诸如在两个环形阀座之间的球形柱塞,相对于导管偏置的刚性管状构件或导管中的开口,其轴向或径向移动以实现流体流动。