METHOD FOR MAKING BIOPOLAR CONCENTRIC MICROELECTRODES

摘要

FIELD: medicine. ^ SUBSTANCE: invention refers to medical equipment, namely to a method for making bipolar concentric electrodes. The method implies that one end of platinum wire blanks are stripped of their fluoroplastic insulation and degreased by immersing in chloroform for 10 min. Each blank is put in wax with its cleared end to be immersed by 2-3 mm deeper. The waxed blanks are supported in an exsiccator together with a pulverisation device comprising a fixed silver wire connected to a power supply. It is followed with evacuating air from the exsiccator, thereafter spraying current 15 mA is passed through the silver wire, and simultaneously nitrogen is supplied in the exsiccator through a spray burner. Then spraying current is increased to 50 mA. After blank metallisation, they are taken out of the exsiccator and dipped in a varnish one by one. ^ EFFECT: invention allows eliminating artefact propagation over the surface from a stimulation point due to the use of bipolar concentric electrodes proportional to stimulation objects.