Wireless capsule endoscope concave wall-attached antenna

Abstract

The invention relates to a wireless capsule endoscope concave wall-attached antenna and belongs to the technical field of clinical medical auxiliary equipment. The wireless capsule endoscope concave wall-attached antenna comprises a long-cross-line-shaped radiation patch, a left radiation patch area and a right radiation patch area, wherein the long-cross-line-shaped radiation patch is integrallyformed and is attached onto the outer wall of a capsule shell, and the left radiation patch area and the right radiation patch area are located at the same side of the long-cross-line-shaped radiationpatch and form a loop with the long-cross-line-shaped radiation patch; the left radiation patch area includes a left step type radiation patch and a left inverted-L-shaped radiation patch; the rightradiation patch area comprises a right step type radiation patch and a right inverted-L-shaped radiation patch; the left step type radiation patch and the right step type radiation patch are identicalin size and are sequentially arranged around the capsule shell; and the left inverted-L-shaped radiation patch and the right inverted-L-shaped radiation patch are identical in size and arranged around the capsule shell oppositely. According to the wireless capsule endoscope concave wall-attached antenna of the invention, the loop structure is adopted, so that the area of the antenna can be decreased with a large frequency band width maintained, and therefore, the fabrication of the antenna is simplified, the difficulty of attachment can be reduced, and the high data transmission rate andstrong anti-interference capacity of the antenna can be maintained with the size of the antenna reduced.

Description

technical field [0001] The invention relates to a technology in the field of clinical medical auxiliary equipment, in particular to a wireless capsule endoscope concave wall-attached antenna. Background technique [0002] Gastrointestinal disease is a disease that occurs in the digestive tract (gastrointestinal tract). Common types include bleeding, ulcers, and tumors. The disease is prevalent worldwide and affects a wide range of age groups. It is a frequent disease from infants to the elderly. Since most gastrointestinal diseases can be controlled or even cured in its infancy, a variety of technologies have been invented to help detect parts of the human gastrointestinal tract. Examples: angiography, ultrasonography, X-rays, and scintigraphy. However, these techniques are all indirect diagnostic techniques, especially when detecting symptoms such as gastrointestinal bleeding, because it is difficult to locate the precise location of intermittent bleeding, the diagnosti...

AI Technical Summary

Problems solved by technology

For the three-dimensional antenna in the capsule, it occupies the space inside the capsule and is limited by the size of the capsule shell, so it is difficult to improve the comfort of the patient while having good stability; for the wall-mounted antenna on the outer wall of the capsule, the center frequency is lower than 1GHz. The frequency bandwidth of the antenna is only 260MHz, and the center frequency of the wall-mounted antenna with a frequency bandwidth of more than 300MHz is higher than 1GHz, so it is difficult to achieve a balance in terms of capsule size, power consumption and stability

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