High-precision broadband distribution type medical electrical impedance tomography imaging device and application thereof

A tomography, distributed technology, applied in applications, medical science, diagnostic signal processing, etc., can solve problems such as lack of experimental research and clinical application systems, and achieve convenient human experimental research, reduce reconstruction errors, and improve reliability. Effect

Active Publication Date: 2016-12-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Electrical impedance technology is relatively mature, but it lacks a relatively complete and convenient experimental research and clinical application system for respiratory process monitoring

Method used

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  • High-precision broadband distribution type medical electrical impedance tomography imaging device and application thereof
  • High-precision broadband distribution type medical electrical impedance tomography imaging device and application thereof
  • High-precision broadband distribution type medical electrical impedance tomography imaging device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 As shown, this embodiment provides a high-precision broadband distributed medical electrical impedance tomography device, including a host computer module 2, a power supply module 1, a distributed medical data acquisition module 3 and an electrode array 4, the host computer module 2, The distributed medical data acquisition module 3 is connected to the electrode array 4 in sequence, the power supply module 1 is connected to the distributed medical data acquisition module 3, the electrode array 4 is connected to the measured object, and the measured object is fixed on a measurement platform 5 during measurement .

[0053] The upper computer module 2 can be a PC, which is used to realize user interface, three-dimensional electromagnetic field modeling of human body, image reconstruction, image processing, image and medical information display, and communication with data acquisition module. Such as image 3 As shown, the upper computer module 2 includes...

Embodiment 2

[0075] Reference as figure 1 As shown, this embodiment provides a test experiment system including the high-precision broadband distributed medical electrical impedance tomography device as described in Embodiment 1. The test experiment system also includes a device for supporting the measured object and fixing the distribution The experimental research platform 501 of the medical data acquisition module 3 enables the electrode array to be close to the human body to be tested, and the distributed medical data acquisition modules connected to it can be evenly arranged around the standing human body to be tested. The experimental research platform 501 is a platform with two degrees of freedom, and its structure is as follows: Figure 6 shown.

Embodiment 3

[0077] Reference as figure 1 As shown, this embodiment provides a clinical application system including the high-precision broadband distributed medical electrical impedance tomography device as described in Embodiment 1. The clinical application system also includes a device for supporting the measured object and fixing the distribution. The clinical application platform 502 of the type medical data acquisition module 3, the clinical application platform 502 is integrated with the hospital bed, so that the electrode array can be close to the measured human body, and the distributed medical data acquisition modules connected to it can be evenly arranged around the torso of the bedridden patient , whose structure is as Figure 7 shown.

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Abstract

The invention relates to a high-precision broadband distribution type medical electrical impedance tomography imaging device and an application thereof. The imaging device comprises an upper computer module, a power supply module, a distribution type medical data acquisition module and an electrode array, wherein the upper computer module comprises a user interface unit, a human body 3D electromagnetic field modeling unit, an image reconstruction unit, an image processing unit, an image and medical information display unit and a communication unit; the user interface unit is used for realizing human-computer interaction; the human body 3D electromagnetic field modeling unit is used for establishing a 3D electromagnetic field finite element simulation model of a detected area according to the contour of a detected object; the image reconstruction unit is used for reconstructing and obtaining a conductivity distribution image of the detected area according to transfer electrical impedance information acquired by the distribution type medical data acquisition module; the image processing unit is used for extracting required medical information from the conductivity distribution image; the image and medical information display unit is used for displaying the conductivity distribution image and the medical information; the communication unit is used for realizing communication with the distribution type medical data acquisition module. Compared with the prior art, the device has the advantage that a high-quality transfer impedance measurement result can be obtained.

Description

technical field [0001] The invention relates to the field of electrical impedance measurement technology test and clinical application, in particular to a high-precision broadband distributed medical electrical impedance tomography device and its application. Background technique [0002] Electrical impedance imaging technology is a non-invasive functional imaging technology. It applies a small excitation current to the measured object through the excitation electrode attached to the surface of the measured body, and collects the voltage response signal through the measurement electrode on the body surface. The measured response voltage and The excitation current signal calculates the transfer resistance and its change. Reconstruct the conductivity distribution image inside the measured human body through an inversion algorithm to provide users with visual detection information. This technology can detect changes in conductivity and permittivity caused by physiology and pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053A61B5/00
CPCA61B5/0033A61B5/0536A61B5/72
Inventor 马艺馨熊小凡苗枥文孙杭宙
Owner SHANGHAI JIAO TONG UNIV
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