DEFIBRILLATOR WITH SAFE DISCHARGE CONTOUR, CONTAINING H-SHAPED BRIDGE ELECTRIC SCHEME Russian patent published in 2009 - IPC A61N1/39 

FIELD: medicine.

SUBSTANCE: invention concerns medicine area, namely to area of urgent cardiological resuscitation. The heart defibrillator for treatment of the patient in case of cardiovascular activity termination by means of the shock blow provided with the dosed out diphasic electric discharge of high-voltage condenser through the H-shaped bridge circuitry, contains the high voltage commutator A, B, C or D in each of the branches. According to the invention each of opposite polarity phases of a diphasic shock blow is managed in two stages on time in such a manner that for each pair of the commutators concerning the given phase, the first of pair commutators is changed over in leading state and remains leading during all this phase whereas the second commutator of this pair is shorted with some time delay in relation to the first commutator throughout some operated duration for establishment of a current flow through a body of the patient during this phase, and the second phase is processed in the same way by means of other pair of commutators.

EFFECT: wide use of the defibrillation device.

13 cl, 6 dwg