Defibrillation energy storage capacitor and charging circuit

Abstract

The invention relates to a defibrillation energy storage capacitor and a charging circuit. A storage battery is sequentially connected with the charging circuit and a low-voltage energy storage capacitor. A first interface of a PWM chip IC1 of the charging circuit, a resistor R2 and a fourteenth interface of the IC1 are connected in series. A first interface of the IC1, the capacitor C1, the resistor R1 and a twelfth interface of the IC1 are connected in series; one path between the C1 and the R1 is connected with a 13th interface of the IC1; one path is connected with a capacitor C2 and thenconnected with a tenth interface of the IC1, and the other path is grounded; one path of a ninth interface of the IC1 is connected with a sixth interface of the IC1, one path is grounded after being connected with a capacitor C3, and one path is connected with a third interface of the dual operational amplifier IC2; an eighth interface of the IC1 is connected with a first interface of the IC2, a fourth interface of the IC2 is grounded, the eighth interface of the IC2 is connected with 12V, the fourth interface of the IC2 is respectively connected with the resistor R4 and the resistor R5, and afifth interface of the IC1 is connected with a seventh interface of the IC1 in series. Safety is guaranteed, waiting is not needed, stable and repeated charging and discharging can be achieved, the economic effect is good, and power consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a defibrillation energy storage capacitor and a charging circuit that ensure safety, do not need to wait, can be repeatedly charged and discharged stably, have good economic effects, and reduce power consumption. Background technique [0002] The defibrillator uses a large pulse current to act on the heart to eliminate arrhythmia and restore the heart to sinus rhythm. It has the advantages of high curative effect, fast action, and easy operation. Since the end of 1962, Bernard Lawn invented the DC defibrillator and successfully used it clinically, and this DC defibrillation method has been used until now. In order to achieve a large current output, the high-voltage energy storage capacitor is first charged with a DC current, and after reaching a higher voltage, it is quickly discharged through the electrodes on the patient's chest. This method has been used until now. ...

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Problems solved by technology

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

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