Method and device for electromagnetic localization and navigation for transcranial magnetic stimulator

A transcranial magnetic stimulation and electromagnetic positioning technology, applied in magnetic therapy, surgical navigation systems, and the use of magnetic fields generated by coils, etc., can solve problems such as increasing stimulation intensity, wasting energy, limiting the use of optical positioning systems, and achieving rapid positioning. effect of the process

Inactive Publication Date: 2017-12-22
WUHAN ZNION TECH CO LTD
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Problems solved by technology

The machine vision positioning and navigation system requires a positioning cap. The thickness of the positioning cap increases the distance between the magnetic stimulation coil and the cerebral cortex, increases the stimulation intensity, and causes a waste of energy, especially when transcranial magnetic stimulation and EEG recording are required at the same time. Wearing the positioning cap and the EEG electrode cap at the same time will increase the distance between the magnetic stimulation coil and the cerebral cortex
In the optical positioning and navigation system, due to the obstruction of light by objects, high requirements are placed on the positions of optical sensors and light sources, which also limits the use of optical positioning systems to a certain extent.
Secondly, the existing navigation system does not display the distribution of the induced electric field on the head in real time, especially the direction information of the induced electric field

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  • Method and device for electromagnetic localization and navigation for transcranial magnetic stimulator

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] The invention provides an electromagnetic positioning and navigation method for a transcranial magnetic stimulator, the method comprising:

[0028] Step S1, collecting head information by imaging the patient's head, reconstructing a three-dimensional head model according to the collected information, and marking the position of the treatment target and the direction of the induced electric field on the three-dimensional head model;

[0029] Step S2, obtain the geometric spatial position model of the head and the magnetic stimulation coil according to the three-dimensional head model and the ...

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Abstract

The present invention discloses a method and device for electromagnetic localization and navigation for a transcranial magnetic stimulator. The coordinate systems of geometric space position models of a head and a magnetic stimulation coil are registered with the coordinate system of the real position of a patient' head marked by a position sensor and the real position of the magnetic stimulation coil to accurately and rapidly perform localization process from images to concrete positions.

Description

technical field [0001] The invention relates to a medical device, in particular to an electromagnetic positioning and navigation method and device for a transcranial magnetic stimulator. Background technique [0002] In the early 1980s, British scientists Baker and others began to study the use of magnetic stimulation to intervene in brain neural activity, and successfully stimulated the motor center of the human brain for the first time in 1985, and measured the motor cortical evoked potential (Motor- evoked potentials, MEPs). This also marks the entry of Transcranial Magnetic Stimulation (TMS) into the stage of history. With the development of high-power devices and the improvement of circuits, repetitive magnetic stimulators (Repetitive Transcranial Magnetic Stimulation, rTMS) appeared in the late 1980s, which can generate 1–100 pulses per second. According to the principle of electromagnetic induction, the magnetic stimulator releases the energy stored in the capacitor...

Claims

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Application Information

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IPC IPC(8): A61N2/02A61B34/20
CPCA61B34/20A61B2034/2051A61N2/006A61N2/02
Inventor 孙聪胡耀德
Owner WUHAN ZNION TECH CO LTD
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