METHOD AND DEVICE FOR DISINFECTING LIQUIDS Russian patent published in 2006 - IPC A61L2/00 A61L2/02 A61L2/08 

FIELD: medical engineering; food industry.

SUBSTANCE: method involves creating ring-shaped continuous cross-section flow of liquid under disinfection and treating it with electromagnetic radiation. Narrow continuous radiation beam is created. The flow is treated by circular scanning with the created radiation beam directed at an angle to the flow with multiple laser radiation refraction in the flow. The device has chamber for producing liquid flow having inlet and outlet tubes, electromagnetic radiation source connected to control unit, acting upon the under disinfection. The device also has rotating mirror having drive connected to the control unit. The chamber has two coaxial cylinders with space left for the liquid to pass. Ring-shaped window is available for letting electromagnetic radiation pass. Mirror member and chamber cylinders axes are superposed. The electromagnetic radiation source has continuous laser radiator optically coupled with via rotating mirror member and internal cylinder window with lateral chamber walls facing each other. One of embodiments involves creating the flow under disinfection having hollow cylinder cross-section, electromagnetic radiation as narrow continuous laser radiation beam transformable into funnel-shaped light flux. Electromagnetic radiation acts upon the produced flux by superposing optical axis of the luminous flux and geometrical axis of the liquid flow under disinfection. The device has also has mirror cone. The chamber for producing liquid flow is fabricated from two coaxial cylinders space formed for letting liquid pass. The internal chamber cylinder has window for electromagnetic radiation to pass through. The mirror cone is mounted on coaxially arranged cylinders. The electromagnetic radiation source has in series mounted laser oscillator and collimator optically coupled via the mirror cone and internal cylinder window to chamber walls facing each other.

EFFECT: high reliability and safety in operation; simplified design.

11 cl, 3 dwg