Patent ID: 7438713
Filing Date: 2008-10-21
Classification: A61B

Abstract:
1. Apparatus for delivering electromagnetic radiation onto tissue to be treated therewith, comprising: a lightguide having a cross-section of a predetermined polygonal shape, said lightguide arranged to receive the radiation to be delivered at an entrance-end thereof and having a length selected such that said received radiation emerges from an exit-face thereof having a substantially uniform intensity distribution at said exit-face; a plurality of optical components arranged to project an image of said exit-face of said lightguide onto the tissue to be treated; and wherein the electromagnetic radiation is delivered to one of a plurality of contiguous locations on said tissue in a treatment-spot, wherein each location has the polygonal shape of said lightguide cross-section, and a substantially uniform intensity of radiation therein; at least one piezo-electric actuator cooperative with the lightguide to control movement of the lightguide.