A Confocal Endoscope for Cellular Imaging  

作　　者：Jiafu Wang Min Yang Li Yang Yun Zhang Jing Yuan Qian Liu Xiaohua Hou Ling Fu 

机构地区：[1]Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology [2]MoE Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology [3]Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology [4]Mo E Key Laboratory for Biomedical Photonics, Department of Biomedical Engineering, Huazhong University of Science and Technology

出　　处：《Engineering》2015年第3期351-360,共10页工程（英文）

基　　金：supported by the National Key Technology R&D Program of China (2011BAI12B06);National Natural Science Foundation of China (61205197 and 61178077)

摘　　要：Since its inception, endoscopy has aimed to establish an immediate diagnosis that is virtually consistent with a histologic diagnosis. In the past decade, confocal laser scanning microscopy has been brought into endoscopy, thus enabling in vivo microscopic tissue visualization with a magnification and resolution comparable to that obtained with the ex vivo microscopy of histological specimens. The major challenge in the development of instrumentation lies in the miniaturization of a fiber-optic probe for microscopic imaging with micron-scale resolution. Here, we present the design and construction of a confocal endoscope based on a fiber bundle with 1.4-μm lateral resolution and 8-frames per second(fps) imaging speed. The fiber-optic probe has a diameter of 2.6 mm that is compatible with the biopsy channel of a conventional endoscope. The prototype of a confocal endoscope has been used to observe epithelial cells of the gastrointestinal tracts of mice and will be further demonstrated in clinical trials. In addition, the confocal endoscope can be used for translational studies of epithelial function in order to monitor how molecules work and how cells interact in their natural environment.Since its inception, endoscopy has aimed to establish an immediate diagnosis that is virtually consistent with a histologic diagnosis. In the past decade, confocal laser scanning microscopy has been brought into endoscopy, thus enabling in vivo microscopic tissue visualization with a magnification and resolution comparable to that obtained with the ex vivo microscopy of histological specimens. The major challenge in the development of instrumentation lies in the miniaturization of a fiber-optic probe for microscopic imaging with micron-scale resolution. Here, we present the design and construction of a confocal endoscope based on a fiber bundle with 1.4μm lateral resolution and 8-frames per second （fps） imaging speed, The fiber-optic probe has a diameter of 2.6 mm that is compatible with the biopsy channel of a conventional endoscope, The prototype of a confocal endoscope has been used to observe epithelial cells of the gastrointestinal tracts of mice and will be further demonstrated in clinical trials. In addition, the confocal endoscope can be used for translational studies of epithelial function in order to monitor how molecules work and how cells interact in their natural environment.

关 键 词：cellular resolution confocal endoscopy optical biopsy 

分 类 号：TH776.1[机械工程—仪器科学与技术] Q2-33[机械工程—精密仪器及机械]