Patent ID: 8821482

Claim:
A device for non-invasive treatment of skin tissue comprising: a laser source for generating a laser beam during a predetermined pulse time, a skin surface image sensor for determining topographical information about a surface of the skin above the tissue in a dermis layer to be treated, wherein the skin surface image sensor is arranged to determine a position of a line of a locally deepest depression of the skin tissue; and an optical system for focusing the laser beam into a focal spot, with respect to the line of the locally deepest depression of the skin tissue, where, in operation: The optical system positions the focal spot at a treatment depth within the dermis layer of the skin tissue; and the optical system dimensions the focal spot and the laser source powers the laser beam such that, in the focal spot, the laser beam has a power density which is above a characteristic threshold value for skin tissue, above which value, for the predetermined pulse time, a laser induced optical breakdown (LIOB) phenomenon occurs in the skin tissue.