医用超细内窥镜系统研究
1 重庆大学生物工程学院生物流变科学与技术教育部重点实验室, 重庆 400030
2 重庆大学新型微纳器件与系统技术国防重点学科实验室, 重庆 400030
Study of Medical Ultrathin Endoscope System
1 Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400030, China
2 Key Laboratories for National Defense Science and Technology of Innovative MicroNano Devices and System Technology, Chongqing University, Chongqing 400030, China
摘要 设计了一种医用超细内窥镜系统。采用微型、高分辨率的CMOS图像传感器配合低压差分信号(LVDS)传输技术进行前端摄像探头的设计,使摄像探头直径缩减至5.0 mm,并实现了图像数据的长距离高保真传输;采用基于S3C2440微处理器的ARM开发平台对图像数据进行处理,实现了内窥镜图像的清晰显示。以口腔为模拟测试对象对系统摄像功能进行了测试,并与传统内镜进行了对比,证明该系统能够完成内窥镜摄像,且所成图像分辨率高。以口腔溃疡模拟粘膜病变对系统进行测试,证明该系统能有效发现粘膜病变,病变检出率高达90.0%。本系统成像清晰,且镜体直径小,能大大提高病人内镜检查的舒适性,为消化道疾病普查初筛提供了一种理想的解决方案。
关键词 :
CMOS图像传感器 ,
内窥镜 ,
LVDS技术 ,
微型化
Key words :
CMOS image sensor
endoscope
LVDS technology
miniature
基金资助: 国家自然科学基金(81101172);国家科技支撑计划项目(2011BAI08B00)
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