Wireless recorder for detecting human gastrointestinal motility

Abstract

The invention provides a wireless recorder for detecting human gastrointestinal motility, relating to the field of medical equipment. The wireless recorder comprises an in vivo sensor capsule and an in vitro receiver, wherein a shell of the in vivo sensor capsule is wholly wrapped by gel materials and is in a structure imitating leeches; the two ends of the shell are provided with suckers which can adhere to the human gastrointestinal surfaces; the in vivo sensor capsule is provided with a strain gauge sensor, a microcontrol unit I, sucker muscle slice groups connected with the suckers, a communication unit I, an antenna I and a battery pack; and the in vitro receiver comprises an antenna II, a communication unit II, a microcontrol unit II, a voltage conversion chip and a computer USB output interface. Compared with the prior art, the wireless recorder has the following advantages: the examinees using the wireless recorder do not have any sense of pain or adverse reaction, carry aboutthe portable in vitro receiver and can move freely during detection; and the wireless recorder records the gastrointestinal motion waveform in the complete physiological state.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a wireless recording device for human gastrointestinal motility detection. Background technique [0002] Gastrointestinal motility is one of the most important physiological functions of the digestive system. The process is completed by the regular contraction and relaxation of the smooth muscle of the digestive tract wall and the coordinated opening and closing of the sphincter. Gastrointestinal motility is related to many diseases of the human body. It is necessary to Study it in depth. Since Kronecker et al. used the balloon method to measure pharyngeal and esophageal contraction movements in 1883, after nearly 100 years of development, people are still not completely clear about the gastrointestinal motility rules of animals, especially human beings. The main reason is the recording of gastrointestinal motility. There are many deficiencies in the research methods, which need...

AI Technical Summary

Problems solved by technology

[0006] However, the fatal disadvantages of this instrument are: 1. Open surgery is required to sew the transducer on the intestinal wall, and the trauma is large, so it cannot be used to record human gastrointestinal motility; 2. Even in small animals, due to gastrointestinal The wall is extremely thin, and it is almost impossible to embed elastic strain gauges; 3. The sutures damage the intestinal wall, so the recorded gastrointestinal motility is not the model under the complete physiological state, which affects the test results to a certain extent; 4. Wire connections are required In vitro records, in animal experiments, animals need to be restrained to a certain extent, otherwise the animals are easy to bite or tear off the connecting wires, so the recorded results cannot fully reflect the gastrointestinal motility patterns of animals under normal physiological conditions

[0007] (3) Internal pressure measurement method: Some researchers use multi-conductor perfusion catheters to observe the movement of various parts of the gastrointestinal tract at the same time. The disadvantage is that it is not sensitive to small pressure changes, and it is difficult to accurately reflect the gastrointestinal peristalsis.

However, because it is uncontrollable in vitro, it is not possible to selectively detect key parts or target parts of the subject.

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