METHOD AND DEVICE FOR FORMING A DEFIBRILLATION PULSE Russian patent published in 2018 - IPC A61N1/39 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine. Method for forming defibrillation impulse with given parameters is performed using a device for forming a defibrillation impulse. In this case, switch connection diagram of condensers of at least one condenser group of energy store unit from parallel circuit to serial circuit and from the serial circuit to the parallel one. Each condenser group contains two capacitors. Voltage across the capacitive storage is regulated that, based on true stress of charge of the capacitors, to minimize deviation between real magnitude pulse of defibrillation (current and / or voltage), depending on the current value of the patient's chest resistance, and the necessary amplitude of the defibrillation pulse. To regulate the voltage on the capacitive storage , the switching frequency of the capacitor connection circuit is set taking into account the permissible deviation between the maximum permissible and the minimum permissible current (voltage) in the patient's circuit. Device comprises a capacitive energy (2) with two or more capacitors with a commutator (4) for switching capacitors from parallel circuit to a serial circuit, an additional energy store (3) for flowing through it the discharge current of the capacitors, keys for regulating the shape of defibrillation pulse and polarity of its phases, the patient circuit (6) and the electrical control unit (5), which contains electrical circuit sensor of the patient circuit. Electric mode sensor is configured to convert the electrical mode parameters into a scaled voltage. In control unit of electrical mode capacitor switching modulator is introduced. Capacitor commutator is made to switch the capacitor coupling circuit at maximum frequency, defined by the modulator.

EFFECT: reduction in likelihood of electro-injury to the patient and an increase in the probability of successful defibrillation by forming defibrillation pulse shapes that are dynamically adapted to the patient's chest resistance are achieved.

15 cl, 6 dwg