Давыдов Дмитрий Владимирович (RU),Егоров Алексей Игоревич (RU),Филимонов Павел Викторович (RU)
申请号：
RU2017105272
公开号：
RU0000174556U1
申请日:
2017.02.17
申请国别(地区):
RU
年份:
2017
代理人:
摘要：
The utility model refers to the measurement technique of bioelectric signals of the body and its parts and can be used in portable multi-channel digital electrocardiographs used at the patients bed and in ambulances. The technical result is to increase the reliability of the biopotential amplifier for multi-channel electrocardiography under real operating conditions. This technical effect is achieved due to the fact that the known biopotential amplifier containing M inputs for connection of M signal electrodes of electrographic leads and two inputs for connecting the reference R-electrode and Right Left Driven (RLD) electrodes-N electrode, respectively, and M +2 low-pass filter (LPF), the inputs of which are inputs of said biopotential amplifier, the input of each LPF is connected to the corresponding signal electrode or to the R or N electrode, as well as a control microprocessor, a universal ADC for multichannel electrocardiographs, including M reference current sources, each of which is connected to the corresponding positive input of the multiplexer, as well as two scaling resistors, parallel to one of which a capacitor is connected, an M + 1 high-resistance resistor is inserted, each of which is connected between the ground bus and the multiplex positive pa relating to the respective signal electrode or to the R-electrode, and the operational amplifier R-biopotential electrode, wherein the controlling microcontroller embedded microcontroller further ADC, which is connected to the output of the LPF N-channel electrode, and the output of the operational amplifier of the biopotential of the R-electrode is connected to the second terminal of the second of the said scaling resistors and to the common bus connecting the M minus inputs of the multiplexer to each other. 2 yl.Полезная модель относится к технике измерений биоэлектрических сигналов организма и его частей и может быть использована в переносных многоканальных цифровых электрокардиографах, применяемых у пост
