Research and realization of ECG monitoring system against high-frequency interference by electrosurgical unit
- VernacularTitle:抗高频电刀干扰心电监护系统的研究与实现
- Author:
Bing LIU
;
Zhizhong WANG
;
Yikang WANG
;
Lei LI
- Publication Type:Journal Article
- Keywords:
ESU;
signal processing;
comb filter;
adaptive filter;
PLL
- From:
Chinese Medical Equipment Journal
1989;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
In modern surgeries, ESU is an important electrosurgical equipment. However, the interference caused by ESU usually affects real-time monitoring of the patient. To solve these problems, the paper introduces some new ideas in analog circuits. To the problem of interference and base-line excursion, this paper proposes an adaptive comb filter with Phase-Locked Loop(PLL), besides digital comb filters. Following the frequency of power and sampling accordingly, this method could easily clear the interference, which could make the cost reduced.
