Method and apparatus controlling drive signal

A technology of excitation signal and excitation frequency, which is applied in the field of medical devices, can solve problems such as inaccurate detection results, difficulty in detecting the target to be detected, and failure of the excitation signal to reach the target to be detected, so as to achieve the effect of improving accuracy

Active Publication Date: 2017-02-08
苏州涵轩信息科技有限公司
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  • Claims
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Problems solved by technology

[0004] In the existing EIT, the frequency of the injected excitation signal is generally fixed. When the target to be detected is far away from the electrode used to inject the excitation signal, the excitation signal cannot reach the target to be detected, making the target to be detected difficult to be detected. making the test results inaccurate

Method used

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  • Method and apparatus controlling drive signal

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0054] Such as figure 1 As shown, an embodiment of the present invention provides a method for controlling an excitation signal, and the method may include the following steps:

[0055] Step 101: Determine the propagation distance required for the excitation signal to detect the target to be detected;

[0056] Step 102: Determine the excitation freque...

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Abstract

The invention provides a method and apparatus controlling a drive signal. The method comprises steps of determining a spreading distance required by the drive signal for detection of a to-be-detected target, determining drive frequency required by the drive signal for spreading the spreading distance, and outputting the drive signal of the drive frequency. The invention provides the method and apparatus for controlling the drive signal, and detection result accuracy can be improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method and device for controlling an excitation signal. Background technique [0002] The human body is a large bioelectrical conductor, and each tissue and organ has a certain impedance. When a local organ of the human body becomes diseased, the impedance of the local part must be different from that of other parts. Make a diagnosis. EIT (Electrical Impedance Tomography, Electrical Impedance Imaging) is a technique for detecting lesions by measuring changes in the impedance of the human body. [0003] In the existing EIT, the current is generally injected into the human body as an excitation signal, and the voltage caused on the body surface is detected. Using the detected voltage value, according to a certain reconstruction algorithm, it is calculated that the internal tissues and organs of the human body are affected by the electric field. Impedance distribution is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/053
CPCA61B5/053A61B5/7228
Inventor 于邦仲
Owner 苏州涵轩信息科技有限公司
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