Patent ID: 9414888
Filing Date: 2016-08-16
CPC Classification: A61B,A61N,H01L

Claim Text:
1. A self-contained, hand-held device for providing laser-based dermatological treatments, the device comprising: a device body configured to be handheld by a user; a laser beam source supported in the device body and configured to generate non-collimated laser radiation at a wavelength in the range of 1400-1500 nm or 1800-2600 nm; an automated scanning system configured to receive the non-collimated laser radiation; wherein along an optical path extending fully from an emitting surface of the laser beam source to the automated scanning system the device either includes no optics or only optics that deliver the laser radiation to the automated scanning system as a non-collimated input beam, wherein the automated scanning system is configured to scan the received non-collimated input beam to provide a series of automatically scanned output beams for delivery to the skin to form a pattern of treatment spots on the skin to provide a fractional treatment to the skin, wherein each treatment spot is defined by a contiguous area on the skin surface receiving at least 1/e the automated scanning system comprising a single rotating optical element having a plurality of sectors, each configured to influence a focus of the received non-collimated input beam to define a non-collimated output beam that is convergent along a first axis by a first degree of convergence and convergent along a second, orthogonal axis by a second degree of convergence greater than the first degree of convergence; an application end arranged for delivery of the automatically scanned output beams to the skin, and configured to be manually moved across the skin during a treatment session; and electronics configured to control at least one of the laser beam source and the automated scanning system to deliver the automatically scanned output beams to the skin at a delivered fluence at the skin of at least 1 J/cm wherein a focus of each output beam delivered to the skin, along at least one of the first and second orthogonal axes, is defined by the single rotating optical element such that between the single rotating optical element and the skin, the device includes only an open air interface, a window, or other structure that does not deflect or influence the angular distribution profile of each output beam along the at least one of the first and second orthogonal axes; and wherein the automatically scanned output beams delivered from the application end of the device meet the Class 1M or better eye safety classification per the IEC 60825-1.