LASER SYSTEM FOR TREATMENT OF SKIN LAXITY

摘要

A method of reducing wrinkles in skin includes irradiating the skin with laser pulses to ablate an array of spaced apart voids in the skin. A region of coagulated tissue surrounds each of the voids and there is viable tissue between the coagulated regions. Tissue in the coagulated regions is in tension due to shrinkage of collagen by the heat generated during the ablation. This tension rapidly closes the voids, tightening the skin and reducing the wrinkles. A healing process replaces the coagulated tissue with new tissue after a period of about one- month.The method is also applicable to lightening abnormally pigmented skin, as the new tissue replacing the coagulated tissue is not abnormally pigmented.