基于LED的医用内窥镜照明系统设计  

Design of LED-based lighting system for medical endoscope

作　　者：周文光[1,2] 王春飞[1,2] 毛坤剑[1,2] 陈庆[1,2] 孔悦[1,2] 

机构地区：[1]解放军174医院 [2]厦门大学附属成功医院,福建厦门361003

出　　处：《医疗卫生装备》2015年第8期26-28,38,共4页Chinese Medical Equipment Journal

基　　金：南京军区2013年度科技创新项目资助课题(MS087)

摘　　要：目的:设计一种基于发光二极管(light emitting diode,LED)的医用内窥镜照明系统,解决传统弧光灯发光效率低、温升高、使用寿命短等不足。方法:以带脉冲宽度调制(pule width modulation,PWM)功能的AD型单片机为核心进行控制,采用特制的RGB-LED混光合成白光的方法,通过光纤将合成后的光线传到内窥镜的前端对体内的组织器官进行照明。结果:将该照明系统通过光纤连接至内窥镜主机进行组织照明,光源显色指数高、效果好,可真实再现组织颜色。结论:该内窥镜照明系统发光效率高、功耗低、照明效果好,非常适用于内窥镜诊疗照明。Objective To design a LED-based lighting system for the medical endoscope to eliminate the deliciencies ot the traditional arc lamp in low efficiency, high temperature rise, short service life and etc. Methods Core control was realized by AD single chip microcomputer with the function of pulse width modulation （PWM）. White light came into being from RGB-LED mixed light, and then was transmitted to the front of the endoscope to light in vivo tissues and organs.Results The trials proved the system with high color rendering index and lighting efficiency could reflect the colors of the tissues. Conclusion The lighting system has high efficiency and low power consumption, and thus can be used for lighting of medical endoscope.

关 键 词：医用内窥镜 照明系统 发光二极管 混光设计 

分 类 号：TH776.1[机械工程—仪器科学与技术] TN312.8[机械工程—精密仪器及机械]