[Development and research of temporary demand pacemaker with electrocardiosignal display].
A temporary demand pacemaker with electrocardiosignal display is introduced in this paper. Double way low-noise electrocardiosignal preamplifier, amplitude limiter, high and low pass filter, 50 Hz notch filter, TTL level generator and stimulating pulse formation circuit are components of the hardware electrocircuit. The demand pacing and the electrocardiosignal display are separately controlled by the software in which the double microcontrollers communications technique is used. In this study, liquid crystal display is firstly used in body surface electrocardiosignal display or intracardial electrophysiologic signal display when the temporary demand pacemaker is installed and put into use. The machine has proven clinically useful and can be of wide appliation.
Fan
Shounian
S
Guizhou Provincial People's Hospital, Guiyang 550002, China. FSN1213@HOTMAIL.COM
Jiang
Chenxi
C
Cai
Yunchang
Y
Pan
Yangzhong
Y
Yang
Tianhe
T
Wu
Qiang
Q
Zheng
Yaxi
Y
Liu
Xiaoqiao
X
Li
Shiying
S
D004562:Electrocardiography; D006801:Humans; D010138:Pacemaker, Artificial