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Apparatus and method for dynamically displaying and mapping cerebral electric impedance distribution topographic map

A dynamic display and topographic map technology, applied in the field of medical devices, can solve the problem of not being able to dynamically display the topographic map of EEG impedance distribution in real time, and achieve the effect of low cost

Inactive Publication Date: 2007-07-11
CHONGQING UNIV
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Problems solved by technology

The publication date of the Chinese invention patent is May 28, 2003, the publication number is CN1419889A, and the name of the invention is "a method for non-invasive clinical monitoring of intracranial edema", which discloses a method for non-invasive clinical monitoring of intracranial edema. Because it can only monitor the change curve of intracranial edema, it cannot dynamically display the topographic map of EEG impedance distribution in real time

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  • Apparatus and method for dynamically displaying and mapping cerebral electric impedance distribution topographic map
  • Apparatus and method for dynamically displaying and mapping cerebral electric impedance distribution topographic map
  • Apparatus and method for dynamically displaying and mapping cerebral electric impedance distribution topographic map

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing, the present invention will be further described

[0049] See Figure 1, Figure 2, Figure 4, Figure 5:

[0050] A surveying and mapping instrument for dynamically displaying topographic maps of EEG impedance distribution, comprising 16 driving measurement electrodes 1, a digitally synthesized sine wave signal source 2, a sine wave constant current source 3, a potential / phase detection circuit 4, a high-speed A / D acquisition circuit 6, The high-speed microprocessor 7, PC 9, 16 drive the measuring electrode 1 to connect with the analog switch array 5, the input end of the analog switch array 5 is connected with the output end of the sine wave constant current source 3, and the input end of the sine wave constant current source 3 It is connected with the output end of the digital synthetic sine wave signal source 2; the output end of the potential / phase detection circuit 4 is connected with the input end of the high-speed A / D a...

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Abstract

The invention relates to a brain resistance distribution diagram dynamic measurer and relative method, wherein said measurer comprises 16 driving measuring electrodes, digit synthesize sine signal source, sine constant current source, voltage / phase detecting circuit, high-speed A / D collector, high-speed microprocessor, and PC. Said method uses network topology, to treat the brain resistance data via mark value, to be shown at PC. The invention will not hurt detected user, to get the condition of brain.

Description

technical field [0001] The invention relates to a medical device, in particular to a dynamic display surveying and mapping instrument for dynamically displaying the brain electrical impedance distribution topographic map of the brain electrical impedance distribution in a graphical manner in real time and a method for dynamically displaying the surveying and mapping and the brain electrical impedance distribution topographic map. Background technique [0002] In clinical medicine, cerebral edema (cerebral infarction and cerebral hemorrhage) is a common fatal lesion that has entered the top three domestic morbidity and mortality in recent years. Whether the rescue is timely is the key to saving lives and reducing sequelae. Clinical cerebral edema is mainly detected by CT, conventional magnetic resonance (MRI) and MRI diffusion weighted imaging (DWI). Although the scope and degree of instantaneous cerebral edema can be accurately judged, there is a lack of real-time informatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/053A61B5/0476
Inventor 张占龙何为王平罗辞勇
Owner CHONGQING UNIV
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