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Non-contact magnetic inductive encephaledema monitoring method

A technology of magnetic induction and cerebral edema, applied in the field of biomedical engineering

Active Publication Date: 2006-01-04
FOURTH MILITARY MEDICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

The method of mapping magnetic induction imaging is a new magnetic induction detection method that has not been reported at home and abroad.

Method used

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  • Non-contact magnetic inductive encephaledema monitoring method

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Embodiment Construction

[0023] The non-contact magnetic induction cerebral edema monitoring method of the present invention utilizes the excitation coil near the target (skull) to generate a magnetic field, the target (skull) is placed in the excitation magnetic field, utilizes the disturbing magnetic field of the eddy current induced inside the target (skull), and the measuring coil detects The change of the magnetic field is displayed by the corresponding detection circuit and computer, and non-contact monitoring is carried out for various cerebral edema (open wound, closed wound, stroke). The specific method is as follows:

[0024] 1. Tomographic imaging:

[0025] Multiple excitation and measurement coils are arranged around the target (head) in a circle shape (6, 8, 10, 12, 14, 16, 32 excitation and measurement coils are respectively adjusted according to actual conditions, see figure 2 ).

[0026] Its working principle is that applying an alternating current (as an excitation) to a certain coi...

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Abstract

The non-contact magnetically inductive encephaledema monitoring method is based on eddy current detecting principle, and has the magnetically inductive information detection and magnetically inductive imaging method applied in the monitoring of various encephaledema. The monitored target is set in the exciting magnetic field to induce eddy current disturbed magnetic field for detection. The present invention can obtain the conductivity inside the target and its change so as to monitor the emergence and development of encephaledema, and the detected magnetic field information is used in analysis and image reconstruction to obtain the conductivity inside the target and its change. The method of the present invention has the advantages of no contact and no leakage current, and based on the present invention, proper medical equipment may be developed for continuous monitoring of encephaledema patient.

Description

technical field [0001] The invention belongs to a medical imaging and monitoring method in the field of biomedical engineering, and specifically refers to a non-contact magnetic induction method (one-dimensional information and imaging) for monitoring cerebral edema. technical background [0002] At present, X-CT, MRI and other imaging methods can be used to image brain edema caused by cerebral hemorrhage and ischemia. However, due to the radioactivity of X-CT, it is not easy to use it multiple times, and X-CT and MRI are large-scale equipment, so they cannot be used in bed. If it is used continuously next to it, the development process of cerebral edema cannot be monitored continuously and in real time. [0003] According to the data retrieval conducted by the applicant, the technology close to this application is the patent "non-invasive clinical monitoring method for intracranial edema" applied by Chongqing Boen Technology Co., Ltd. in 2002. ...

Claims

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Application Information

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IPC IPC(8): A61B5/05
Inventor 董秀珍刘锐岗尤富生付峰史学涛李烨
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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