公开(公告)号：US5563584A

公开(公告)日：1996-10-08

申请号：US152012

申请日：1993-11-15

申请人： R. Scott Rader ,  Eric H. Schallen ,  Alexander C. Walsh ,  Carl C. Awh ,  Eugene de Juan

发明人： R. Scott Rader ,  Eric H. Schallen ,  Alexander C. Walsh ,  Carl C. Awh ,  Eugene de Juan

IPC分类号： A61M5/168 ,  G08B21/00

CPC分类号： A61M5/1684 ,  Y10S128/13 ,  Y10T137/7339

摘要： A liquid level sensing and monitoring system for a medical fluid infusion system has an IV spike with a pressure sensor which contacts fluid in an infusion container such as an IV bag or bottle. When an adequate amount of fluid is in the container, the resulting pressure on the sensor is at a relatively high level; however, when the fluid reservoir is nearly depleted, the pressure on the sensor falls to a low level, thereby activating the sensor and associated control circuitry which operates an alarm or warning indicator. In lieu of the pressure sensor, the device may use a resistive or capacitive sensor. When the liquid level falls below the electrical sensor, its state changes, and the alarm circuitry is activated.

摘要翻译： 用于医疗液体输注系统的液位感测和监测系统具有IV尖峰，其具有接触诸如IV袋或瓶的输注容器中的流体的压力传感器。 当容器中有足够量的流体时，传感器上产生的压力处于较高的水平; 然而，当流体储存器几乎耗尽时，传感器上的压力下降到低水平，由此激活操作警报或警告指示器的传感器和相关联的控制电路。 代替压力传感器，该装置可以使用电阻或电容传感器。 当液位低于电传感器时，其状态改变，并且报警电路被激活。