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    APPARATUS AND METHOD FOR DETECTING DISCONNECTION OF AN INTRAVASCULAR ACCESS DEVICE
    1.
    发明申请
    APPARATUS AND METHOD FOR DETECTING DISCONNECTION OF AN INTRAVASCULAR ACCESS DEVICE 审中-公开
    用于检测血管内通路装置断开的装置和方法

    公开(公告)号：US20110105877A1

    公开(公告)日：2011-05-05

    申请号：US12916021

    申请日：2010-10-29

    申请人： Michael J. Wilt ,  Jason M. Sachs ,  Kevin L. Grant

    发明人： Michael J. Wilt ,  Jason M. Sachs ,  Kevin L. Grant

    IPC分类号： A61B5/04

    CPC分类号： A61M1/3656 ,  A61M1/3653 ,  A61M1/3655 ,  A61M1/3659 ,  A61M2205/3317 ,  G01N27/07 ,  G01R27/14

    摘要： An apparatus and method are disclosed for detecting the disconnection of a vascular access device such as a needle, cannula or catheter from a blood vessel or vascular graft segment. A pair of electrodes is placed in direct contact with fluid or blood in fluid communication with the vascular segment. In one embodiment, the electrodes are incorporated into a pair of connectors connecting arterial and venous catheters to arterial and venous tubes leading to and from an extracorporeal blood flow apparatus. Wires leading from the electrodes to a detecting circuit can be incorporated into a pair of double lumen arterial and venous tubes connecting the blood flow apparatus to the blood vessel or vascular graft. The detecting circuit is configured to provide a low-voltage alternating current signal to the electrodes to measure the electrical resistance between the electrodes, minimizing both the duration and amount of current being delivered. Detection of an increase in electrical resistance between the electrodes exceeding a pre-determined threshold value may be used to indicate a possible disconnection of the vascular access device.

    摘要翻译： 公开了一种用于检测诸如针，插管或导管之类的血管进入装置与血管或血管移植物段断开的装置和方法。 一对电极被放置成与血管段流体连通的流体或血液直接接触。 在一个实施例中，电极被并入连接动脉和静脉导管到通向体外血液流动装置的动脉和静脉管的一对连接器。 从电极引导到检测电路的电线可以并入到将血流装置连接到血管或血管移植物的一对双腔动脉和静脉管中。 检测电路被配置为向电极提供低压交流信号以测量电极之间的电阻，从而最小化持续时间和传递的电流量。 检测超过预定阈值的电极之间的电阻增加可用于指示血管通路装置可能的断开。

    Reagent supply for a hemodialysis system
    9.
    发明授权
    Reagent supply for a hemodialysis system 有权
    试剂供应血液透析系统

    公开(公告)号：US08425471B2

    公开(公告)日：2013-04-23

    申请号：US12199196

    申请日：2008-08-27

    申请人： Kevin L. Grant ,  Michael J. Wilt ,  Jason A. Demers

    发明人： Kevin L. Grant ,  Michael J. Wilt ,  Jason A. Demers

    IPC分类号： A61M5/00

    CPC分类号： A61M1/1656 ,  A61M1/1668 ,  A61M2205/6045 ,  A61M2205/6081

    摘要： A reagent supply arrangement for a hemodialysis system may include an E-prong connector having three parallel prongs with two outer prongs arranged in a common plane and a center prong arranged above the common plane, a first supply line for a first reagent connected in fluid communication with one of the outer prongs, a second supply line for a second reagent connected in fluid communication with the other of the outer prongs, a liquid line connected in fluid communication with the center prong, and a container for housing the first reagent having an inlet connected to the liquid line and an outlet connected to the first supply line for the first reagent. The E-prong connector may help prevent the improper connection to the dialysis unit, e.g., because the prong arrangement ensures connection in only one way to the dialysis unit.

    摘要翻译： 用于血液透析系统的试剂供应装置可以包括具有三个平行插脚的E形插脚连接器，其中两个外部插脚布置在公共平面中，并且布置在公共平面上方的中心插脚，用于连接在流体连通中的第一试剂的第一供应管线 其中一个外部插脚，用于与另一个外部插脚流体连通的第二试剂的第二供应管线，与中心插脚流体连通的液体管线和用于容纳具有入口的第一试剂的容器 连接到液体管线和连接到用于第一试剂的第一供应管线的出口。 E-pin连接器可以有助于防止与透析单元的不正确连接，例如因为插脚布置确保仅以一种方式连接到透析单元。