公开(公告)号：EP3137165A4

公开(公告)日：2018-02-14

申请号：EP15786751

申请日：2015-04-29

Applicant: THERALASE TECH INC

Inventor： LILGE LOTHAR ,  MANDEL ARKADY ,  DUMOULIN-WHITE ROGER ,  EMBREE WAYNE

IPC: A61N5/06 ,  A61K41/00 ,  A61N5/08 ,  A61P35/00

CPC classification number: A61N5/062 ,  A61B2018/2035 ,  A61B2018/2065 ,  A61K41/0057 ,  A61N5/0616 ,  A61N2005/0626 ,  A61N2005/0651 ,  A61N2005/0652 ,  A61N2005/0659 ,  A61N2005/0662 ,  A61N2005/067

Abstract: A method for treating a condition in a tissue, includes the steps: (1) providing a PS within the tissue; (2) irradiating the tissue containing the PS with a first light of a first wavelength; and (3) irradiating the tissue containing the PS with a second light of a second wavelength so as to treat the condition in the tissue, wherein: (a) the PS absorbs light at the first wavelength and the second wavelength; and (b) the second light is more strongly absorbed by the tissue than the first light or vice versa, so as to achieve a predetermined absorbed photon density gradient. An apparatus for conducting the method includes first and second light sources, a power supply, a focusing device, and a controller which adjusts light emission such that I(d)=I(λ1 at d=0)×exp (μeff (λ1)×d)+I(λ2 at d=0)×exp (μeff(λ2)χd).