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本文研制了一台人工心脏控制专用微机,包括硬件Z-80中央处理器和其他大规模集成电路;软件是占1.3K字节的监控程序,有同步与非同步两种控制方式可供选择。非同步控制时,由面板拨盘设定心率。专用微机输出频率为1—300次/分的驱动脉冲,脉冲频率连续可调,并有面板显示。同步控制时,天然心脏的瞬时心率显示在面板上。延迟期随频率而变,另设有面板拨盘修正,可调范围大。能作分频同步控制。当同步信号消失,则自动切换到非同步控制。驱动脉宽随频率而变,也设有面板拨盘修正,可调范围大。
In this paper, a dedicated artificial heart control computer, including the hardware Z-80 central processing unit and other large scale integrated circuits; software is 1.3K bytes of monitoring procedures, there are two ways to control the synchronization and non-synchronization options. Asynchronous control, set by the panel dial heart rate. Dedicated computer output frequency of 1-300 times / min drive pulse, pulse frequency continuously adjustable, and a panel display. When synchronized, the instantaneous heart rate of the native heart is displayed on the panel. The delay period changes with the frequency, the other with a panel dial correction, adjustable range. Can be divided frequency synchronization control. When the synchronization signal disappears, the automatic switch to asynchronous control. Drive pulse width varies with frequency, also has a panel dial correction, adjustable range.