[Optimal mode of operation of an artificial heart]. / Optimal'nyi rezhim upravleniia iskusstvennym serdtsem.

Artificial heart operation was estimated from the view point of minimum energy consumption for the blood transport. The operation mode without breaks proved to be more economical in this respect, as compared to the mode with breaks during systole or diastole. A special control device has been designed just for the provision of uninterrupted artificial heart operation. This device improves the main functional characteristics of the artificial heart, increases the sensitivity to venous influx and provides invariance to the arterial pressure.

[Automatic control of an artificial heart with an autonomous energy source]. / Avtomaticheskoe upravlenie iskusstvennym serdtsem s avtonomnym istochnikom énergii.

Specific features and particularities in the design of the artificial heart control systems are considered, operated by various engines with a radioisotope energy source. The operation results showed the need in a complex approach to the problem solution. It should be based on optimized constructions, methods and principles of functioning for all ingradients of the artificial heart from the viewpoint of automatic control.

[Blood heat exchangers for the artificial heart using a radioisotope power source]. / Issledovanie teploobmennikov krovi iskusstvennogo serdtsa s radioizotopnym istochnikom pitaniia.

A design of a vascular heat exchanger enabling it to establish in experiments with animals the degree of the possible specific-capacity thermal loads has been devised. The performance results may be taken account of in designing implantable appliances of assistive circulation and artificial heart.

[Power units of implanted artificial heart and assisted circulation system]. / Energeticheskie bloki, ispol'zuemye v implantiruemom iskusstvennom serdtse i sistemakh vspomogatel'nogo krovoobrashcheniia

The existing and presently planned systems of power supply for an artificially implanted heart and assisted circulation devices are reviewed. A comparative analysis as to their conformability to biological, functional and technical demands placed on the implanted systems is given. In an implanted artificial heart and assisted circulation systems most promising is shown to be the use of nuclear fuel as a source of power and as converters -- that of thermal engines with gas and steam cycle.

[Components of an implanted artificial heart and the medico-technical requirements]. / Sostavnye elementy implantiruemogo iskusstvennogo serdtsa i pred'iavliaemye k nim mediko-tekhnicheskie trebovaniia

The task of designing and providing power supply for an implanted artificial heart (AH) is a many-sided complex problem that includes a number of medico-biological, technical, physical, power-supply and other factors. The analysis of the AH components and the mentioned basic medico-technical requirements permits it to outline the ways and means for a rational solution of this complicated problem. The greatest attention is paid to the analysis of and future prospects for the use of different power sources and methods of power conversion.