Ultra-low voltage energy storage type cardiac defibrillator

Abstract

The invention relates to an ultra-low voltage energy storage type cardiac defibrillator. The ultra-low voltage energy storage type cardiac defibrillator comprises a power module, wherein the power module is sequentially connected with a charging module, an ultra-low voltage energy storage capacitor, a high-frequency converter, an H-bridge circuit, a defibrillation electrode, a negative feedback circuit and a waveform setting circuit, and the waveform setting circuit is connected with the high-frequency converter. The ultra-low voltage energy storage type cardiac defibrillator can perform defibrillation after being started, is convenient to design, produce and maintain, can output various waveforms, improves the release efficiency, reduces the size, improves the success rate of defibrillation, and is stable and controllable in defibrillation current.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a defibrillation device that can be defibrillated after being turned on, is convenient for design, production and maintenance, can output various waveforms, improves release efficiency, reduces volume, improves the success rate of defibrillation, and has stable and controllable defibrillation current. ultra-low voltage energy storage cardiac defibrillator. Background technique [0002] Ventricular fibrillation refers to the disordered excitation of the ventricle, resulting in the loss of regular and orderly excitation and diastolic and systolic function of the ventricle, which are all functional sudden cardiac arrest (SCA). This means that the person's heart has stopped pumping blood, which is a fatal arrhythmia. Ventricular fibrillation is an extremely chaotic manifestation of the heart's electrical activity and is generally difficult to stop on its own. Defibrillation...

AI Technical Summary

Problems solved by technology

This will not only miss the golden moment of rescuing the patient, but also waste the energy in the battery

[0009] 2. Since the defibrillation current is uncertain, the defibrillation current cannot be used as the unit of measurement, but energy can only be used as the unit of measurement, resulting in different defibrillation effects of the same energy for different patients

[0010] 3. Unstable defibrillation waveform

[0011] 4. The release efficiency is low, and the release efficiency refers to the ratio of released energy to stored energy

Due to the large internal resistance of the discharge circuit, the discharge efficiency of most defibrillators is between 50% and 80%.

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