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Electrode Fixtures for Electrical Impedance Tomography

An electrical impedance tomography and fixation device technology, which is applied to the field of electrode fixation devices for electrical impedance tomography, can solve the problems of inability to determine the specific location and cross-sectional diameter of the lesion, inability to achieve 3D imaging effects, and achieve the effect of accurate data.

Active Publication Date: 2019-01-22
SEALAND TECH CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some technical schemes of devices for fixing electrodes have been proposed in the prior art, they usually only realize the contact of a single layer of electrodes, which has certain limitations; therefore, it is impossible to realize the 3D imaging effect, and thus it is impossible to determine the specific location and location of the lesion. Cross-sectional diameter

Method used

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  • Electrode Fixtures for Electrical Impedance Tomography
  • Electrode Fixtures for Electrical Impedance Tomography
  • Electrode Fixtures for Electrical Impedance Tomography

Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 and figure 2 As shown, this embodiment provides an electrode fixing device for electrical impedance tomography, the device includes a guide unit 10 and a carrier unit for fixing the electrodes, and the carrier unit includes a first electrode connected to the guide unit 10 A carrier 20 and a second carrier 30 nested outside the first carrier 20 around the guide unit 10 .

[0032] The first carrier 20 includes a first fixing ring 21 , a first connecting post 22 and a first fixing seat 23 . The first connecting posts 22 are used to connect the first fixing ring 21 and the first fixing seat 23. In this embodiment, the two ends of the four first connecting posts 22 are located at the first fixing seat 23 and the first fixing seat 23 respectively. The first fixing ring 21 is equidistantly distributed on the circumference. Wherein the first fixing seat 23 is fixedly connected with the guide unit 10 , and the first electrode ring 21 is provided with a plura...

Embodiment 2

[0036] Such as Figure 4 and Figure 5 As shown, the biggest difference between the electrode fixing device described in this embodiment and the electrode fixing device described in Embodiment 1 is that: the carrier unit also includes a third seat that is nested outside the second carrier 30 with the guide unit 10 as the axis. Carrier 40.

[0037]The third carrier 40 includes a third fixing ring 41 , a third fixing seat 43 , a third connecting column 41 and a second auxiliary device 44 for fixedly connecting the third fixing ring 41 and the third fixing seat 43 . The third fixing seat 43 is provided with a second guide hole 431 that can just pass through the guide unit 10 , and the third electrode ring 41 is provided with a plurality of electrode holes 411 distributed equidistantly around the circumference. Therefore, in this embodiment, the guide unit 10 passes through the second guide hole 431 of the third carrier 40 to fix the sliding direction of the third carrier 40 . ...

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Abstract

The invention belongs to a signal collecting device in an imaging device, and particularly discloses an electrode fixing device for electrical impedance tomography. The electrode fixing device comprises a guide unit and a carrier unit for fixing an electrode, the carrier unit comprises a first carrier connected with the guide unit and a second carrier nested outside the first carrier with the guide unit as a shaft. By means of the electrode fixing device, a monitored object is in contact with multiple layers of electrode faces, independent adjustment and 3D tomography are carried out on each electrode face, the specific position of the diseased region and the size of the diseased region can be accurately judged, and the follow-up diagnosis and treatment methods are guided accordingly.

Description

technical field [0001] The invention relates to a signal acquisition device in imaging equipment, in particular to an electrode fixing device for electrical impedance tomography. Background technique [0002] Electrical Impedance Tomography (EIT) is a new imaging technology that takes the distribution or change of electrical impedance in the target body as the imaging object. The technology is non-invasive and harmless to the human body, has a simple system structure, and is easy to measure. It has broad application prospects in long-term real-time image monitoring of patients, as well as cancer detection and screening. Existing EIT imaging generally injects excitation current through the electrodes around the imaged target, and simultaneously measures the response voltage on the boundary of the imaging target, adopts a multi-drive / measurement electrode structure to achieve electrical impedance measurement, and uses image reconstruction algorithms for phase-sensitive demodul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/053
Inventor 向飞王奕刚罗旭梅戴涛蒲洋徐现红高松卜力宁林怡
Owner SEALAND TECH CHENGDU
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