Panoramic imaging device and capsule gastroscope

Abstract

The invention provides a panoramic imaging device small in size and low in power consumption and a capsule gastroscope. The panoramic imaging device comprises an image sensor, a first objective lens and a second objective lens, wherein the first objective lens and the second objective lens are located at the two ends of a shell respectively, and the optical axis of the first objective lens and the optical axis of the second objective lens are parallel to the target surface of the image sensor; the first objective lens and the second objective lens are arranged on the two sides of the image sensor, and a first deflection prism is arranged between the first objective lens and the image sensor; light beams emitted by the first objective lens enter the image sensor after passing through the first deflection prism, and a second deflection prism is arranged between the second objective lens and the image sensor; light beams emitted by the second objective lens enter the image sensor after passing through the second deflection prism. The capsule gastroscope comprises the shell, wherein the panoramic imaging device is arranged in the shell. Miniaturization of the panoramic imaging device can be achieved, the structure is simplified, the cost is reduced, and the cruising ability is increased.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to a panoramic imaging device and a capsule gastroscope with the imaging device. Background technique [0002] Non-invasive and minimally invasive surgical technology is one of the most important development trends of contemporary clinical medicine, which promotes the development of medical engineering towards highly automated and low-injury diagnosis and treatment. As an important means of non-invasive and minimally invasive surgery, endoscopic diagnosis and treatment has been widely used. The traditional insertion gastroscope has poor tolerance and is not suitable for the frail and critically ill elderly. The full name of capsule endoscopy is "Smart Capsule Gastrointestinal Endoscopy System". It is an endoscopy technology developed in recent years. [0003] Capsule endoscopy has the advantages of simple operation, convenient inspection, no trauma, no pain, no cross-infection, and ...

AI Technical Summary

Problems solved by technology

[0004] At present, in order to realize the panoramic imaging of capsule gastroscopy, two CCDs or CMOS are usually used to realize panoramic imaging, but two sets of driving circuits are required to realize imaging with two CCDs or CMOS image sensors, which makes the size of the device not small enough and battery life The time is short; or use an auxiliary mechanical device to obtain a full range of images by rotating the micro-camera to change the camera angle. Using a mechanical device will also make the size of the device not small enough, and there is randomness in the way it changes the shooting angle. It may not be possible to capture every corner of the inner wall of the stomach, and it is impossible to achieve a circumferential panoramic image, and there is a large blind spot; or a fisheye lens is used to obtain a hemisphere or a panoramic field of view larger than a hemisphere, and a fisheye lens is used for Obtaining a large field of view usually requires more than 10 lenses and high-quality optical materials, and the system is complex and expensive

[0005] It can be seen that the current technical bottlenecks of capsule gastroscopes are: the angle of view cannot achieve panoramic imaging, the size is not small enough, and the battery life is short

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