Apparatus and method for photodynamic diagnosis and therapy of skin diseases and light source system thereof
First Claim
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.
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Accused Products
Abstract
A system is provided for photodynamic diagnosis and therapy of skin diseases. In particular, a camera head is provided to irradiate a white light, a fluorescent excitation light and a therapeutic light for the photodynamic therapy from the inside of a case onto the skin region being in contact with a view hole. Additionally, a digital color TV camera collects the light from the skin region and outputs a generated image signal. In particular, an image processing and analysis system receives the image signals from the camera head to process, analyze and store the same, displays a color image by the white light, a fluorescent 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 controls the general operations of the camera and the light source system.
36 Citations
29 Claims
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1. A system for photodynamic diagnosis and therapy of skin diseases comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for photodynamic diagnosis and therapy of skin diseases comprising:
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bringing a skin region into contact with a view hole formed in a front surface of a case in a camera head; illuminating the skin region, brought into contact with the view hole, with a white light using a light guide in the case; obtaining a color image signal based on a reflected light from the illumination of the white light using a digital color TV camera provided in the rear of the case, and processing and storing the color image signal transmitted from the digital color TV camera using an image processing and analysis system; illuminating the skin region, brought into contact with the view hole, with an excitation light supplied from a light source system to the inside of the case through the light guide simultaneously with the white light; obtaining a fluorescence image signal based on fluorescence by the illumination of the excitation light using the digital color TV camera, and processing and storing the fluorescence image signal transmitted from the digital color TV camera using the image processing and analysis system; and displaying a color image and a fluorescence image obtained by the image processing and analysis system, or a synthesized image thereof, and analyzing the images, 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. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification