Patent ID: 8286640
Filing Date: 2012-10-16
Classification: A61B

Abstract:
1. A method for fractional dermatological treatment, the method comprising: directing an optical beam emitted by a laser source toward a target region of skin to deliver a fractional treatment to the target region of skin; and adjusting one or more parameters of the optical beam selected from the group consisting of a size of the optical beam at the skin surface, a focal depth of the optical beam below the skin surface, a numerical aperture of the optical beam as the optical beam enters the skin, and a beam cross-sectional shape at the skin surface in response to a preselected pulse energy for the optical beam, wherein the laser source is configured to emit optical energy at a laser wavelength in a range of 1350 nm to 1430 nm for which the absorption in water changes with temperature and increases as the tissue is heated from 30° C. to 80° C.