| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention refers to medical equipment, namely devices for temperature control of skin surface and biotissue subcutis. The device comprises a laser emitter, a working chamber and a gas system, a fluid tank and temperature regulation system, a mixing chamber, a fluid injection system into the mixing chamber, fluid supply channels into the injection system, a suction system, withdrawal channels for gas and fluid pumped-out by the suction system from the working chamber. A gas flow is supplied into the mixing chamber from the gas system for atomisation and formation of a gas-drop mixture supplied into the working chamber. On top, the chamber is formed by an optical window transparent for working radiation in a laser pathway, by a skin surface at the bottom and by walls on each side. A gap thickness between an internal surface of the optical window and a skin surface is dëÑ4 /, while fluid temperature in the chamber is specified as TfëÑTsur[1+e/(e)]-[e/(e)]T0, where e, e are a heat conduction coefficient and a skin surface thickness respectively, is a skin surface thermal conductivity coefficient, T0 is initial skin surface temperature, Tsur is required skin surface temperature. Gas temperature in the working chamber is 5-20C higher than fluid temperature. The fluid is skin neutral and has a boiling point exceeding body temperature. ^ EFFECT: use of the invention enables more efficient and uniform cooling of a skin surface area and improving result stability of temperature control of a skin surface. ^ 2 cl, 2 dwg |
