Objective  To design single use duodenoscope image processing system, and reduce the cost of duodenoscopy while ensuring HD imaging. During use, there is no need to sterilize the duodenoscope, and avoid the risk of mutual infection among patients.

Methods  Design single use duodenoscope image processing system, including single use duodenoscope, single use fiber, and image processor. Single use duodenoscope includes a sequentially connected high-definition camera module, an emission light pre-processing module, and an light emitting module. The high-definition camera module is used to acquire high-definition image data, the emission light pre-processing module is used to convert the electrical signal of the image data, and the light emitting module converts the image electrical signal into an image optical signal and sends it to the host through design single fiber. The material of the single use duodenoscope is made of low-cost medical plastic. Key components such as the camera module use low-cost CMOS image sensors, the illumination at the head of the scope use ultra micro, ultra-low power and low-cost LEDs, and high-definition images are transmitted using low-cost disposable fiber instead of expensive amplification circuits, which greatly reduces the cost of the duodenoscope. The image processor is reusable, including sequentially connected light receiving module, receiving light pre-processing module, high-definition image processing module, control module, and display module. The light receiving module receives image optical signals and converts them into image electrical signals. The receiving light pre-processing module is used to convert image electrical signals into image data signals, the high-definition image processing module is used to process high-definition images, the control module is used to coordinate and control system operation, and the display module is used to display high-definition images. And undergoes in vitro testing and trial use.

Results  The single use duodenoscope image processing system for in vitro testing meets the requirements for clinical use. Trial results show that the high-definition images of the throat, stomach, and duodenum models are clear and the colors are realistic.

Conclusion  The single use duodenoscopy image processing system can overcome the shortcomings of the existing repetitive duodenum, which is difficult to sterilize and more prone to cross infection. The image quality can also achieve the high- HD effect of the repetitive duodenal system.