[Sterilization of rubber medical equipment with formaldehyde].

The sterilizing procedure of medical rubber pieces have been studied. The gas sterilizer GK-100 has been used the chamber of which was loaded with rubber pieces and with rubber pieces in combination with plastic. The map of the temperature field has been build, and the effect of the exposure and temperature as well as the packaging density in the chamber on sterility of the test-pieces has been derived.

[Heart-body biophysical model].

A biophysical model heart--body designed for experimental electrocardiographic investigations is described. The model consists of an isolated perfused dog heart immersed in a liquid volumetrical conductor filling the vessel in the form of a human torso with implanted electrodes for various ECG leads. The volumetrical conductor presents a hypotonic NaCl solution.