Power source for medical equipment and power supply method for same

Abstract

The invention discloses a power source for medical equipment. The power source for the medical equipment comprises an input end which is connected with a grid electricity power source, an output end which supplies power to the medical equipment, at least two chargeable power supply modules and a switching control module, wherein the switching control module controls the two chargeable power supply modules to be connected with the output end and the input end, so that the chargeable power supply module which is connected with the output end is made to be isolated from the chargeable power supply module which is connected with the input end. The invention further discloses a power supply method for the medical equipment. According to the power source for the medical equipment, one of the chargeable power supply modules is adopted to supply power, the chargeable power supply module is isolated from the grid electricity power source when executing power supply, and therefore interference of the grid electricity power source to the medical equipment is reduced.

Description

technical field [0001] The invention relates to medical equipment, in particular to a power supply method and power supply for medical equipment. Background technique [0002] The current medical multi-physiological parameter monitoring mainly includes ECG, respiration, body temperature, non-invasive blood pressure, pulse oximetry, invasive blood pressure and respiratory carbon dioxide, etc., using sensors that are in contact with the human body (including direct or indirect contact), and connecting the human body through a connecting cable. Physiological signals are coupled to the analog circuit in the monitoring equipment. After amplification, filtering, digitization, and signal feature extraction and calculation, the corresponding calculation parameters are obtained, and the waveform and parameter values ​​are displayed on the output device for medical staff to monitor. Identification and discrimination of the status of the monitored person. [0003] At present, there ar...

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Problems solved by technology

[0004] In the measurement, due to the weak signal of the human body, the frequency band is mostly 0-200Hz, the power frequency interference (50Hz) of the power system is very large, and it is also within the signal frequency band, which cannot be eliminated by filtering

In addition, because the power supply system is always connected to the external network power supply, although there is an isolation subsystem in the middle, it will still bring strong interference due to the operation of other equipment, and affect the accurate work of the measurement system, and eliminate the power frequency of the power supply. Interference and the interference of other equipment coupled by the power line are the main problems in ensuring the normal operation of medical electronic monitoring equipment

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