Patent ID: 8496695
Filing Date: 2013-07-30
Classification: A61B,A61N,G01N

Abstract:
1. A system for photodynamic diagnosis and therapy of skin diseases comprising: a camera head including a case having a view hole, provided in front thereof, to be in contact with a skin region, a light guide provided in the rear of the case, the camera head being provided to irradiate a white light, a fluorescence excitation light and a therapeutic light for the photodynamic therapy from the inside of the case onto the skin region being in contact with the view hole, and a digital color TV camera collecting the light from the skin region and outputting a generated image signal; a light source system, connected to the case of the camera head through the light guide capable of light transmission, providing the fluorescence excitation light, the therapeutic light for the photodynamic therapy and the white light simultaneously to be irradiated onto the skin region to the camera head; and an image processing and analysis system for receiving the image signal from the camera head to process, analyze and store to same, for displaying a color image by the white light, a fluorescence image by the excitation light and the therapeutic light for the photodynamic therapy, obtained by the digital color TV camera, and a synthesized image thereof, and for controlling the general operations of the camera head and the light source system, wherein the light source system includes a plurality of light sources and a switching path-coupling unit having an empty holder with no mirror and two holders with a dichroic mirror and an opaque mirror respectively for selectively transmitting wavelengths of light emitted from the plurality of light sources.