Tomita M, Tanahashi N
Department of Neurology, School of Medicine, Keio University, Tokyo, Japan.
Int J Artif Organs. 1987 Sep;10(5):295-300.
A simple photoelectric apparatus is described, to monitor the flow condition of whole blood in an extracorporeal system. It can raise an immediate alarm on disturbance of flow. The apparatus comprises an RBC aggregometer head, described previously, for measuring the rate of RBC aggregation in whole blood. Its construction was modified for easy attachability and detachability without causing tube damage. In practice, the apparatus was applied by hooking it to the tube of the extracorporeal system in animals and in a clinical case of blood dialysis in a patient with renal failure, in which stoppage of blood flow elicited a dramatic change in the baseline record of light transmission of the mobile blood. The signal of the apparatus was fed to an alarm system via a voltage comparator switch. The apparatus is inexpensive, solid and durable, easy to operate by untrained personnel, and has excellent stability and reproducibility.
描述了一种简单的光电装置，用于监测体外系统中全血的流动状况。它能在血流受到干扰时立即发出警报。该装置包括一个先前描述过的红细胞聚集仪探头，用于测量全血中红细胞的聚集速率。其结构经过改进，以便于装卸且不会损坏管道。在实际应用中，该装置通过挂在动物体外系统的管道上以及在一名肾衰竭患者的血液透析临床病例中进行应用，在该病例中，血流停止导致流动血液透光率的基线记录发生了显著变化。该装置的信号通过电压比较器开关输入到警报系统。该装置价格低廉、坚固耐用，未经培训的人员也易于操作，并且具有出色的稳定性和可重复性。
