公开(公告)号：US20130283891A1

公开(公告)日：2013-10-31

申请号：US13928622

申请日：2013-06-27

申请人： NXSTAGE MEDICAL, INC.

发明人： JAMES M. BRUGGER ,  CHRISTOPHER MCDOWELL

IPC分类号： A61M1/36

CPC分类号： A61M1/367 ,  A61M1/3626 ,  A61M1/3653 ,  A61M1/3656 ,  A61M39/223 ,  A61M2205/15 ,  Y10T137/86831

摘要： A flow reversing device for performing blood treatment can include a flow reversing actuator. The flow reversing actuator can receive and engage a disposable tubing set with multiple branches that form forward and reverse blood flow paths respectively when blood the flow reversing actuator is selectively changed between forward and reverse configurations. The shape of the tubing can be such that during forward operation, dead regions of non-flowing blood are defined. The flow reversing actuator can have a controller configured to operate generally in forward mode. At first times, the controller can cause the flow reversing actuator to clear the dead regions. At second times, the controller can cause the flow reversing actuator to test for leaks by reversing the flow of blood for a period of time sufficient to cause air to be drawn into the tubing set and conveyed to an air sensor.

摘要翻译： 用于进行血液处理的流量反转装置可以包括流动反转致动器。 流量反转致动器可以分别接收和接合具有多个分支的一次性管道组，其中分支形成正向和反向血流路径，当血液逆向致动器在正向和反向构造之间选择性地改变时。 管的形状可以使得在正向操作期间，限定非流动血液的死区。 流动反向致动器可以具有被配置为大体上以正向模式操作的控制器。 在第一时间，控制器可以使流动反向致动器清除死区。 在第二次时，控制器可以使流动反向致动器通过反转血液流动足以使空气被吸入管道组并传送到空气传感器的时间来测试泄漏。