Charging protection device and method in defibrillation system

Abstract

The invention provides a charging protection device and method in a defibrillation system. The charging protection device comprises a charging circuit, a charging power supply control unit and a first processor. Dual judgment is conducted through the first processor, wherein firstly, by judging whether the obtained charging voltage is valid or not, line faults are eliminated, and the obtained voltage is the dead voltage; after the obtained charging voltage is judged to be valid, whether the obtained charging voltage meets the preset relation curve of the charging voltage and time or not is judged, charging is determined to be abnormal if the obtained charging voltage is judged not to meet the relation curve of the charging voltage and time, the first processor sends a stop signal to the charging power supply control unit, and the charging power supply control unit controls the charging circuit to stop conducing charging. By means of the dual judgment conducted through the first processor, the real-time and precise control over the charging process of defibrillation is achieved, and when charging circuit faults or abnormal charging happens, the abnormal charging can be found in real time.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a charging protection device and method in a defibrillation system. Background technique [0002] Ventricular fibrillation, referred to as ventricular fibrillation or ventricular fibrillation, is the most serious form of fatal cardiac arrhythmia in which the normal, regular contraction of the ventricles is replaced by a rapid, irregular flutter due to The ventricular muscle cannot contract effectively, so the blood circulation is interrupted and the blood supply to the brain stops. The patient will immediately lose consciousness and convulsions all over the body. If the normal heart rate cannot be restored quickly, the patient will die soon. So far, electric shock defibrillation is considered to be the most rapid and effective way to terminate ventricular fibrillation. The electric shock defibrillator can generate high-voltage, energy-controllable pulse current to act on the hea...

AI Technical Summary

Problems solved by technology

[0005] The deficiencies of traditional defibrillation equipment for charging control are mainly the following points. First, the charging control is carried out through AD sampling capacitor voltage. When the target voltage is reached, the charging is stopped. There is no real-time and precise control of the charging process. When the charging circuit When a fault occurs, it is often necessary to wait for a certain period of time to find that the charging has failed, and a charging overtime error alarm is generated, usually 30s charging overtime alarm, which greatly delays the time and delays the rescue of the patient; In terms of voltage protection, the traditional defibrillation monitor basically sets the overvoltage protection point of the energy storage capacitor to the highest voltage of the energy storage device, but lacks the setting of overvoltage protection for each energy level. , due to circuit failure, the energy storage capacitor may generate and store an excessively high voltage, which may damage the patient when cardioverting the patient

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