Double-lens capsule endoscope with light guide device

Abstract

The invention relates to a double-lens capsule endoscope with a light guide device. The double-lens capsule endoscope is characterized by comprising a capsule shell, a non-transparent shading body, a transparent light guide body, a front camera, a rear camera, a flexible circuit board, a lighting device, a permanent magnet, a radio-frequency signal transmission device, a signal processing device and a motion sensor, wherein the non-transparent shading body, the transparent light guide body, the front camera, the rear camera, the flexible circuit board, the lighting device, the permanent magnet, the radio-frequency signal transmission device, the signal processing device and the motion sensor are arranged in the capsule shell. A combined structure of two parts (the non-transparent shading body and the transparent light guide body) is adopted by the light guide device, so that the light guide effect can be strengthened, light only enters from the transparent light guide body, the non-transparent shading body is capable of shading one part of stray light entering lenses to increase the light guide effect, and meanwhile, the non-transparent shading body and the lenses are clung to the inner wall of a transparent optical dome to reduce the stray light to the maximal extent. In addition, by adopting a double-lens design matched with the light guide device, a shot image is clearer, and meanwhile, the limited space in a capsule is saved through the design of being clung to the inner wall.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a double-lens capsule endoscope with a light guide device. Background technique [0002] Due to its high reliability and high safety, capsule endoscope has become an effective device for the diagnosis of digestive tract diseases, and has been highly recognized by the international medical device field. The imaging device, image processing device, and wireless transmission device of the capsule endoscope can be swallowed by the subject through the mouth, and can take pictures of organs such as the stomach or intestines during the process of passing through the digestive tract system, and send the captured information By wireless transmission to the external device, the information is received by the external receiving device and then displayed on the display device. In the painless and non-trauma peristaltic state of the human gastrointestinal tract, medical personnel...

AI Technical Summary

Problems solved by technology

This technology can make the LED light source emit light evenly, but it can only optimize part of the stray light. Due to the distance between the lens and the transparent optical dome of the capsule endoscope, the reflection and refraction of the dome still exist. The light-blocking lens will inevitably have some stray light interference when shooting, which will affect the clarity of the distant image captured by the capsule endoscope

At the same time, based on the light guide device added by the traditional lens, for the capsule endoscope used in the stomach, the image taken at a longer distance cannot achieve a clear effect.

[0005] At the same time, due to the added light guide device, when shooting close-range images, the total reflection film on the light guide device has a partial shading effect, which weakens the luminous flux incident on the lens, so that clear images cannot be captured

At the same time, because the design size of the light guide device is a fixed value, it cannot be adapted to different image sensors.

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