Patent ID: RE42594

Claim:
A laser system for tissue treatment, comprising: A) A hand-held portable battery powered tissue cooling unit comprising: 1) a cooling transmitting element comprised of material transparaent transparent to light at a nominal wavelength and having high thermal conductivity and having a contact surface for contacting a surface of tissue being treated, 2) a cryogenic container mounted within or on said cooling unit, 3) a cryogen contained in said container, 4) a cryogenic cooling chamber for cooling at least one surface of said cooling element, said chamber having an entrance port communicating with said container and an exit port, 5) a battery powered cryogenic control means for permitting a flow of vaporizing cryogen from said container into said chamber to cool said at least one surface in order to remove heat from said tissue surface and to produce desired temperature distribution in target tissue being treated, and 6) a battery mounted on or within said cooling unit for providing power to said control means, and B) a source of laser light defining a nominal wavelength arranged to transmit said laser light through said cooling transmitting element.