Three different types of synchronous control methods based on physiological parameters, electrocardiogram (ECG) and fixed systole, ECG and aortic pressure, and ECG and phonocardiogram (PCG) were used to trigger a proposed intra-ventricular assist device (iVAD). The ECG, aortic pressure, and PCG were processed, respectively, and featured characteristics were extracted to trigger the iVAD-experimented in vitro circulation system in the laboratory. The data showed that all three types of synchronous control methods produced trigger pulses synchronously and that the iVAD synchronously beat with the native heart. The multi-cycle data demonstrated that the synchronous delay time of the proposed iVAD during systole and diastole was separately stabilized at a certain time. This study showed that the combination of three synchronization methods can be applied to the iVAD to improve the reliability of synchronization.

基于生理参数的三种不同类型的同步控制方法：心电图（ECG）和固定的心搏，心电图和主动脉压以及心电图和心电图（PCG）触发了拟议的心室内辅助装置（iVAD）。分别处理ECG，主动脉压和PCG，提取特征以触发iVAD体外实验实验室中的循环系统。数据表明，所有三种类型的同步控制方法均会同步产生触发脉冲，而iVAD会与本地心脏同步跳动。多周期数据表明，拟议的iVAD在心脏收缩期和舒张期的同步延迟时间在一定时间分别稳定下来。这项研究表明，三种同步方法的组合可以应用于iVAD，以提高同步的可靠性。