A computerized control system for cardiopulmonary bypass.
A computerized control system for cardiopulmonary bypass.
复制标题
用于体外循环的计算机控制系统。
DOI：
10.1016/s0022-5223(95)70273-3
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Y. Fukui
中科院分区：
文献类型：
--
作者：
T. Beppu;Y. Imai;Y. Fukui
本文介绍了一种用于体外循环的微机泵控系统。由计算机监测的参数是中心静脉压、主动脉压、储血器中的血容量和静脉抽取管中的小乙烯袋的塌陷。在整个心肺转流过程中，动脉输注和静脉抽取管路中的泵均通过接口单元自动控制。该系统通过比例积分控制算法调节中心静脉压，以保持血管内容量恒定。设计了一种筛选算法来去除引入压力测量的伪影。在脱机期间，灌注师可以选择中心静脉压控制或储血器血容量控制。本文报告了15例小儿心脏手术中应用微机泵灌注的体会。灌注流量和中心静脉压控制满意，手术稳定。与传统手动控制泵灌注相比，平均主动脉压、中心静脉压、净液体平衡、总排尿量、血生化和尿分析无显著差异。该系统是有用的，并有望提高泵灌注的安全性。（J THORAC CARDIOVASC SURG 1995; 109：428-38）
A pump control system using a microcomputer for cardiopulmonary bypass has been developed. The parameters monitored by the computer are central venous pressure, aortic pressure, blood volume in a reservoir, and collapsing of a small vinyl bag in a venous withdrawal tube. Both pumps in the arterial infusion and the venous withdrawal lines are automatically controlled through an interface unit throughout cardiopulmonary bypass. The system regulates central venous pressure with a proportional-integral control algorithm to maintain intravascular volume constant. A screening algorithm is devised to remove artifacts introduced to the pressure measurement. During the weaning period, a perfusionist can select either the central venous pressure control or a reservoir blood volume control. Computerized pump perfusion was applied on 15 children during cardiac operations. Perfusion flow and central venous pressure were controlled satisfactorily with stable operation. Compared with conventional manually controlled pump perfusion, no significant difference was noted in mean aortic pressure, central venous pressure, net fluid balance, total urination, blood chemistry, and urinalysis. This system is useful and is expected to improve the safety of pump perfusion. (J THORAC CARDIOVASC SURG 1995; 109: 428-38)