PERFORMANCE TEST DEVICE OF LIQUID TRANSPORT DEVICE FOR DRIP INFUSION

摘要

PURPOSE:To measure the flow rate of an automatic micro volume liquid transport device by providing a pressure sensor, a weight sensor, and a clock pulse oscillator. CONSTITUTION:When a device is operated by closing the start switch of a liquid transport device 3, transport liquid in a transport liquid pot flows in a weight measuring container 7 via a conduit 2, the liquid transport device 3, a conduit 22, a three-way activator 4, a conduit 23, and a vein injection needle 5, and also, pressure is applied to the pressure sensor 6 via the three-way activator 4. The detection output of the weight sensor 9 is increased according to the increment of the amount of transport liquid, and a signal corresponding to the detection output is added on a first analog/ digital converter 119, also, a signal corresponding to the detection output of the pressure sensor 6 is added on a second analog/digital converter 116. Then the clock pulse oscillater 12 oscillates, which controls respective conversional operation of the first and second analog/digital converters 119, 116. In such a way, the flow rate F, the amount of liquid W, and outflow pressure P of the transport liquid found at every cycle of a control signal are stored in third to fifth storage means 4191, 4192, and 416 sequentially, and also, are displayed on a display means 42.