Implantable cardiac pacemaker is a precision electronic treatment apparatus, which is implanted in the body. It outputs electrical stimulation through the pulse generator to stimulate the heart to make it contraction and relaxation. To the issue of precision adjustable and low reliability of domestic pacemaker pulse generators, a precision adjustable pacemaker pulse generator based on the design principle of the pacemaker pulse generator is designed, in which the pulse amplitude and width can be precisely adjusted. The measured amplitude adjustment accuracy is 1. 230 mV, the width adjustment accuracy is 0. 1 ms, and the pacing frequency adjustment accuracy is 1 bpm. The design uses digital control technology and has small size, low power consumption, high reliability, and characteristic of precision adjustable, which can be used in various experimental animals.%埋藏式心脏起搏器是一种植入体内的精密电子治疗仪器,它通过脉冲发生器发送电刺激脉冲刺激心脏使之收缩与舒张.针对国内起搏器脉冲发生器设计参数调节精度不高、可靠性低的问题,依据埋藏式心脏起搏脉冲发生器设计原理,设计了一款精密可调脉冲发生器,可实现对起搏脉冲幅度、脉宽和起搏频率的精密调整,实测幅度调整精度1.230 mV,脉宽调整精度0.1 ms,起搏频率调整精度1 bpm.该设计采用数字化控制,体积小、功耗低、可靠性高,具有脉冲参数精密可调的特性,可应用于多种实验动物体内.
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