热稀释法的心排量监测系统的研制

Development of Cardiac Output Monitoring System Based on Thermodilution Method

心排量监测是血液动力学监测中最重要的监测项目之一,热稀释法是临床上被公认为监测心排量的标准方法,到目前为止仍然具有无可替代的优势。该文主要介绍采用热稀释法搭建的测定心排量的监测平台,包括硬件平台,软件设计和计算处理的介绍。在实验室用心排模拟器进行了大量的测试和在医院进行了初步的临床测试,证明本系统具有非常好的准确性和可重复性。

Cardiac output （CO） monitoring is a crucial part of the hemodynamic status monitoring. So far, thermodilution method, which is clinically recognized as the gold standard method to monitor cardiac output, still has irreplaceable advantages. This paper mainly introduces the use of platform for cardiac output measurement based on thermodilution method, mainly including three parts： the hardware platform, software design and algorithm process. A large amount of test data of this system has been got by CO simulator testing in the laboratory and preliminary clinical tests in the hospital. The testing result showed that using the proposed system can achieve good accuracy and repeatability.