METHOD FOR STERILISATION USING GAS-DISCHARGE PLASMA OF ATMOSPHERIC PRESSURE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC H05H1/24 A61L2/14 

FIELD: medicine.

SUBSTANCE: method includes creation of a jet of cold gas-discharge plasma of atmospheric pressure. To create an endurable plasma jet, a system of electrodes is used from the point cathode and a cylindrical anode where the cylindrical anode coaxially surrounds the point cathode. The discharge is initiated by feeding a constant voltage of 10-20 kV between the electrodes. The argon flow is introduced along the point cathode at a flow rate of 1-10 l/min. Steady combustion of low-current high-voltage spark discharge is achieved by a ballast resistance of 10-63 MOhm. The gas discharge device comprises a point cathode, a cylindrical anode, a gas supply system, an electric power source and a sterilizable (disinfected) object. The point cathode has a tip curvature radius of 30 mcm and is mounted on the isolator axis, the cylindrical anode coaxially covering the point cathode is installed on the isolator periphery, the insusolator has longitudinal holes for argon discharge to the spark gap, plasma jet nozzle is represented by the open end cut of the cylindrical anode.

EFFECT: device simplification with simultaneous increase of its operational stability and provision of more equitable and effective disinfectant effects of low-temperature plasma on wound surfaces of the biological tissue across a large surface reducing the device dimensions to make its portable use in field or other extreme conditions convenient.

2 cl, 6 dwg