A position acquisition method based on a capsule endoscope human body position acquisition system

A technology of capsule endoscopy and acquisition system, applied in the field of medical engineering, to achieve the effects of reducing the probability of falling into local optimum, strong practicability, and high precision

Active Publication Date: 2022-04-01
WUHAN UNIV
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Problems solved by technology

[0005] The invention provides a position acquisition method based on a capsule endoscope position acquisition system in the human body. A vest-type magnetic sensor array positioning device is worn on the human body, and at the same time, the real-time position acquisition of the capsule endoscope in the human body is solved. question

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  • A position acquisition method based on a capsule endoscope human body position acquisition system
  • A position acquisition method based on a capsule endoscope human body position acquisition system
  • A position acquisition method based on a capsule endoscope human body position acquisition system

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[0111] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other. For the parameters that require actual situation analysis, we have indicated the parameter setting method above and will not repeat them here.

[0112] In the embodiment of the present invention, it is specifically applied to obtain the specific position of the lesion area in the human body when the doctor analyzes the disease.

[0113] like figure 1 Shown is a schematic diagram of the capsule e...

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Abstract

The invention proposes a position acquisition method based on a capsule endoscope human body position acquisition system. In the present invention, the magnet is installed on the capsule endoscope to emit magnetic field signals outward, and multiple magnetic sensors of the vest-type three-axis magnetic sensor array board simultaneously collect the magnetic field signal strength and transmit it to the second wireless processor for data processing; the accelerometer The gyro and gyro respectively collect the acceleration and angular velocity information of the capsule endoscope and transmit them to the first wireless processor. The first wireless processor calculates the attitude information according to the acceleration and angular velocity, and the first wireless processor wirelessly transmits the attitude information to the second wireless processor. , so as to determine the attitude parameters and only estimate the position parameters. Based on this system, this patent proposes a nonlinear least squares joint adjustment method based on the magnetometer's axial observation values, which improves the calculation efficiency and reduces the occurrence of gross errors, so as to achieve the real-time calculation of the capsule endoscope positioning system. Require.

Description

technical field [0001] The invention belongs to the field of medical engineering, and in particular relates to a position acquisition method based on a capsule endoscope human body position acquisition system. Background technique [0002] Since the wireless capsule endoscope was born in Israel in 2001, its application in clinical diagnosis has largely made up for the shortcomings of wired endoscopes such as gastroscope and colonoscope in terms of limited field of view and poor patient experience. Moreover, the wireless capsule endoscope can diagnose and treat gastrointestinal diseases while not causing discomfort to the patient and not affecting the normal work and life of the patient. In order to better develop the clinical application of wireless capsule endoscopes and assist doctors in diagnosing and treating gastrointestinal diseases, there is an urgent need to solve a problem: the acquisition of position information of wireless capsule endoscopes in the body. To help ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/04A61B1/00
CPCA61B1/041A61B1/00004A61B1/00011A61B1/00016A61B1/00147A61B1/00158
Inventor 张鹏陈锐志董卫国田山董明玥
Owner WUHAN UNIV
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