DYNAMIC COOLING OF HUMAN SKIN USING A NONTOXIC CRYOGEN WITH NO OZONE DEPLETION AND MINIMAL GLOBAL WARMING POTENTIAL

摘要

An improvement in a method for providing localized cooling of tissue when thermally mediated by electromagnetic radiation comprises directing at least one spurt of a heat transferring substance onto a selected location on the tissue, and preventing ignition of the heat transferring substance by heating from the electromagnetic radiation. Preferably liquid carbon dioxide under pressure is supplied as the heat transferring substance, and adiabatically expanded to provide a solid carbon dioxide spray onto the selected location.