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 white light source provided so as to irradiate a white light from the inside of the case through the view hole onto the skin region, a digital color TV camera provided in the rear of the case, the camera head being provided to irradiate the 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 the 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 a light guide capable of light transmission, for providing the fluorescence excitation light, the therapeutic light for the photodynamic therapy and the white light 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.
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Accused Products
Abstract
The present invention provides an apparatus and method for photodynamic diagnosis and therapy of skin diseases and a light source system thereof that can improve the efficiency of skin diagnosis by accurately analyzing skin conditions using fluorescence and white light simultaneously and further carry out fluorescent diagnosis and photodynamic therapy in the same skin region simultaneously. The apparatus for photodynamic diagnosis and therapy of skin diseases of the present invention includes: a camera head including a case having a view hole, provided in front thereof, to be in contact with a skin region, a white light source provided so as to irradiate a white light from the inside of the case through the view hole onto the skin region, a digital color TV camera provided in the rear of the case, the camera head being provided to irradiate the 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 the 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 a light guide capable of light transmission, for providing the fluorescence excitation light, the therapeutic light for the photodynamic therapy and the white light 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.
51 Citations
35 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 white light source provided so as to irradiate a white light from the inside of the case through the view hole onto the skin region, a digital color TV camera provided in the rear of the case, the camera head being provided to irradiate the 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 the 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 a light guide capable of light transmission, for providing the fluorescence excitation light, the therapeutic light for the photodynamic therapy and the white light 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. - 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 white light source 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 a light guide; 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. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A light source system for photodynamic diagnosis and therapy of skin diseases, the light source system comprising:
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a case, through which light is finally output, including a light output unit connected to an end portion of a light guide; a plurality of light sources operated in the case by receiving electric power from a power unit; a switching path-coupling unit, provided in the case, for selectively transmitting wavelengths of lights emitted from the plural light sources; a filter exchange unit, provided between the switching path-coupling unit and the light output unit in the case, including a plurality of optical filters for selectively transmitting wavelengths of light reflected from the skin region; and a control unit, communicably connected to the image processing and analysis system through a remote control interface, for controlling the operations of the power unit, the switching path-coupling unit and the filter exchange unit in accordance with signals transmitted from the image processing and analysis system, and controlling the general operations of the light source system. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification