A sound sensor, an electroenterogram detection system and detection method based on the sound sensor

Abstract

The invention discloses a sound sensor and an electrointestinogram detecting system and a detecting method based on the sound sensor. The sound sensor comprises a mass block and a silicon basic body, wherein the mass block and the silicon basic body are connected by piezoelectric films and cantilever beams; supporting structures are also arranged between the mass blocks and the silicon basic body; the upper and lower surfaces of the mass block are connected with the cantilever beams with asymmetric structures. According to the electrointestinogram detecting system and the detecting method, the novel sound sensors are arranged in the abdominal cavity to collect borborygmus, the borborygmus abnormal positions can be accurately located by using a sound localization algorithm, and the diagnosis and treatments of a disease are facilitated.

Description

technical field [0001] The invention relates to a sound sensor, an electroenterogram detection system and a detection method based on the sound sensor. Background technique [0002] The intestine is the longest tube in the digestive organs, mainly for the digestion and absorption of food. Once the intestinal tract is abnormal, it will cause digestive and absorption disorders, as well as a series of related symptoms. Therefore, the diagnosis of intestinal diseases has become very necessary. [0003] Electroenterography and bowel sounds auscultation are noninvasive examinations. For ordinary EEG, the potential measured by electrodes arranged on the body surface is extremely small compared with EKG and EEG, and it is also easily affected by breathing, which makes subsequent signal processing difficult and the accuracy is therefore affected. [0004] Compared with bowel electricity, bowel sounds are much more obvious. Under normal circumstances, the bowel sounds are about 4...

AI Technical Summary

Problems solved by technology

Most of the current bowel sound detection equipment uses a single earpiece, which is inconvenient to use

It is also proposed to use multi-channel equipment to arrange multiple sensors on the intestinal tract, but this method can only judge a certain area of ​​abnormal bowel sounds, but cannot accurately locate it, and it is not conducive to the doctor's judgment of the lesion

[0005] Nowadays, the sound source localization algorithm has become more and more mature. It can locate the sound source in three dimensions and accurately locate the sound source. It is mostly used in the mechanical maintenance industry, but not widely used in the medical industry.

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