公开(公告)号：US20040186351A1

公开(公告)日：2004-09-23

申请号：US10767755

申请日：2004-01-28

申请人： Olympus Optical Co., Ltd. (now Olympus Corporation)

发明人： Katsuichi Imaizumi ,  Kazunari Nakamura

IPC分类号： A61B001/06

CPC分类号： A61B5/0084 ,  A61B1/00009 ,  A61B1/0005 ,  A61B1/00186 ,  A61B1/04 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B5/0071

摘要： Excitation light for normal light observation with wavelengths in the visible spectrum, which is output from a lamp, and excitation light with wavelengths in the infrared spectrum for exciting a fluorescent substance characteristic of being accumulated readily in a lesion are irradiated simultaneously to a living tissue, to which the fluorescent substance has been administered, through an endoscope. Fluorescence components are separated from light stemming from the living tissue by means of a separator such as a dichroic mirror, introduced to a first imaging device, and then imaged. Light components with wavelengths in the visible spectrum are introduced to a second imaging device and then imaged. Signals representing the images are subjected to signal processing, whereby a video signal is produced. For better diagnosis, two images are displayed while, for example, one of the images is superimposed on the other.