【摘要】 采用工作时钟为4MHz、内存量为64K的三通道多功能电生理处理机,对膜反应曲线(MRC)、有效不应期(ERP)及校正窦房恢复时间(CSRT)设计了新的微机控制及处理程序。通过在离体及整体免及豚鼠心脏窦房结、房室结电生理实验测量,证实该方法能简化实验步骤,缩减实验设备,提高实验的成功率和精确度,使整个实验实现自控化、实时化。克服了以往测量难度大、成功率低的缺点。更多还原

【Abstract】 By use of a multi-purpose processing system (working time,4 MHz; internal reserving capacity 64 K) and newly designed computing programs,the membrane responsiveness curve (MRC),effective refractory period (ERP) and corrected sinus recovery time (CSRT) were measured and plotted.Our electrophysiolo-gic experiments on sinoatrial and atrioventricular node of rabbits and guinea pigs both in vitro and in vivo have demonstrated that the new system has the merits of simple equipment as well as a high probability of success and accuracy of measuring.Furthermore,the experiments have been made automatic and real-time.更多还原