[An experimental defibrillator with programmable pulse shape].

Results of development of an experimental external electric defibrillator with programmable pulse shape are described. The defibrillator can be used for experimental determination of the optimal shape of defibrillation pulse.

[A choice and realization of bipolar pulses for external electric defibrillators]. / Vybor i realizatsiia bipoliarnoi formy impul'sa dlia vneshnikh élektricheskikh defibrilliatorov.

There is a comparison of parameters of different-form bipolar pulses for external electric defibrillators described in the paper. The electric schemes of generators used in pulse shaping are elucidated; the appropriate recommendations concerning their choice are defined.

[Comparison of the efficiency and noise-immunity of the algorithms detecting the shock cardiac rhythms]. / Sravnenie éffektivnosti i pomekhoustoichivosti algoritmov raspoznavaniia shokovykh ritmov serdtsa.

Comparative assessments of the efficiency and noise immunity of the algorithms detecting the shock cardiac rhythms (SCR) are described in the paper. It is suggested to use the rejection filter of ventricular fibrillation as the principle algorithm for the SCR detection in an automated external defibrillator. The use of the method combining the after-threshold interval and the method of spectral analysis is demonstrated to be preferable for a portable external defibrillator.