Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-electrode electrical impedance tomography data acquisition system

A technology of electrical impedance tomography and imaging data, applied in the field of detection research and biomedical imaging, it can solve the problems that the imaging resolution cannot meet the clinical diagnosis, cannot accurately express the distribution relationship, etc., achieve uniform spatial distribution of electrodes, reduce lead distributed capacitance, compact effect

Inactive Publication Date: 2011-12-14
ZHENGZHOU UNIV
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the data obtained by the boundary electrodes cannot accurately express the distribution relationship with the internal electric field (or magnetic field), coupled with the influence of system accuracy, the imaging resolution cannot meet the needs of clinical diagnosis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-electrode electrical impedance tomography data acquisition system
  • Multi-electrode electrical impedance tomography data acquisition system
  • Multi-electrode electrical impedance tomography data acquisition system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as figure 1 , Figure 6 As shown, the multi-electrode electrical impedance tomography data acquisition system of the present invention includes a driving signal source, an analog switch unit, a drum electrode model, a current sampling module, a voltage sampling module, a program-controlled amplification module, and a true effective value conversion module. A / D conversion module, programmable gate array chip, FLASH memory, synchronous dynamic memory; the barrel electrode model is composed of a barrel body and an eight-layer electrode unit horizontally arranged on the insulating inner wall of the barrel body from top to bottom Each layer of electrode units has 128 electrodes 1 arranged at intervals; each electrode 1 in each layer of electrode units is electrically connected to the driving signal source through the analog switch in the analog switch unit; the current The sampling module and the voltage sampling module are composed of sampling resistors electrically c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-electrode electrical impedance tomography data acquisition system which comprises a driving signal source, an analog switch unit, a cylindrical electrode model, a current sampling module, a voltage sampling module, a program-controlled amplification module, a true RMS (Root Mean Square) conversion module, an A / D (Analog to Digital) conversion module, a programmablegate array chip, a FLASH memory and a synchronous dynamic memory. The invention aims to experimentally analyze the boundary conditions of a research object, the distribution of electric fields in theresearch object and the relationship between a preset path for imaging and an actual path on the theoretical basis, thereby providing a methodological basis for further improving the electrical impedance tomography resolution. The substantial characteristic and significant progress of the invention mainly lie in the uniform space distribution of the electrodes, and the electric fields formed in different rotation directions have high consistency; the data acquisition capacity is large, and after each electrical rotation cycle, 32768 pieces of data can be acquired under the drive of a single-frequency signal; and by using the invention, multiple methods can be conveniently used for the research of electrical impedance tomography.

Description

technical field [0001] The invention relates to the fields of biomedical imaging and detection research, in particular to a multi-electrode electrical impedance tomography data acquisition system. Background technique [0002] Electrical impedance tomography (EIT-electrical impedance tomography) is an important direction in the field of medical imaging research. It is a biomedical detection and imaging technology that takes the distribution of electrical impedance in organisms as the imaging target. This technology is non-invasive detection and has the characteristics of functional imaging, so it has attracted the attention of researchers. [0003] At present, the driving methods of electrical impedance tomography are mainly current driving and magnetic field driving, and the measurement methods mainly include voltage measurement, current measurement, and magnetic field measurement. In order to obtain sufficient imaging data, multi-electrode (16 electrodes, 32 electrodes, 6...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053
Inventor 陈香才侯忆楠刘东玲赵立平郜超军
Owner ZHENGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com