Colon cavity inner capsule system positioning device

A positioning device and inner capsule technology, which is applied in the field of medical devices, can solve the problems of complex positioning system and lack of colon segment positioning ability, and achieve the effects of simple process, small sensor volume, and low power consumption

Inactive Publication Date: 2015-06-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned shortcomings that the existing positioning system is generally complicated and does not have the ability to locate the colon segment, the present invention designs four permanent magnets for the special structure of the colon to achieve precise positioning, and proposes a positioning device for the capsule system in the colon cavity

Method used

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  • Colon cavity inner capsule system positioning device
  • Colon cavity inner capsule system positioning device

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Experimental program
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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment includes: an external system and an internal system. The external system includes: four permanent magnets, a portable data receiver, and a data processing workstation. The internal system is a detection capsule with a MEMS magnetic field sensor. The detection capsule includes MEMS magnetic field sensor, other sensors (image, temperature, pressure, pH, etc.), signal conditioning, AD conversion, central control unit, DC power supply (button battery) and wireless transmitter module. Four permanent magnets will be fixed at four fixed positions on the human body surface, close to the four nodes of the human colon, namely the beginning of the ascending colon, the transition between the ascending colon and the transverse colon, the transition between the transverse colon and the descending colon, and the descending colon and rectum Turning point, such as figure 1 As shown in the four rectangles.

[0027] In actual implementation, since i...

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Abstract

A colon cavity inner capsule system positioning device is composed of an in-vivo capsule with an MEMS magnetic field sensor, and an in-vivo system wirelessly connected with the in-vivo capsule and transmitting magnetic field intensity information. An in-vitro system comprises four permanent magnets and a data processing mechanism. The collected magnetic field intensity information is processed, and an in-vivo capsule is positioned; that is, the magnetic field intensity is determined by the distances between the capsule and the four permanent magnets, and the closer the device gets to any permanent magnet, the higher the detected magnetic field intensity is. The change situation of the magnetic field intensity can be monitored in real time, and the position of the capsule can be accurately positioned and the moment when the capsule passes by a colon cavity can be determined through a denoising preprocessing and peak value detecting algorithm.

Description

Technical field [0001] The invention relates to a technology in the field of medical equipment, in particular to a positioning device for a capsule system. Background technique [0002] The function of the gastrointestinal tract is directly related to the body's absorption and utilization of required nutrients, and is related to human health. A large number of research data show that the incidence of gastrointestinal dysfunction diseases is relatively high worldwide and there is an increasing trend. In daily medical work, nearly 50% of patients seek medical treatment due to gastrointestinal symptoms such as abdominal distension and abdominal pain, among which 30-40% are eventually diagnosed as gastrointestinal motility disorders. The digestive system of the gastrointestinal tract is an extremely complex system, and there is still a lack of effective detection methods, and there are still many unknown areas. Studies have shown that gastrointestinal medical information can reflec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/07A61B1/00A61B5/06
CPCA61B5/062A61B5/073
Inventor 颜国正许飞鲁丽赵凯王志武姜萍萍刘大生
Owner SHANGHAI JIAO TONG UNIV
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