A Device for Implanting Intracranial Electrodes in an Arc Trajectory

Abstract

The invention provides a method and device for implanting an intracranial electrode in an arc track. The method and the device are used for obtaining a puncture track with the single electrode passing through multiple intracranial target points. In the method for implanting the intracranial electrode, a radian-fixed arc puncture cannula is used for leading the electrode into the cranium, puncture positioning of the radian-fixed arc puncture cannula is achieved through the guidance of a radian-fixed arc guide cannula, the radian-fixed arc guide cannula is fixed to a positioning tool, the positioning tool is provided with a positioning frame and position-adjustable positioning points, the positioning points are provided with fixing parts, and when the arc guide cannula penetrates through the positioning points and is fixed through the fixing parts, positioning of the arc guide cannula is completed; when the arc guide cannula is positioned, the circumference of the circle where the arc of the arc guide canula is located passes through the multiple intracranial target points. According to the implanting method and the orienting device, the multiple target points are stimulated with the single electrode.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a method and a device for implanting intracranial electrodes with an arc trajectory. Background technique [0002] Deep brain stimulation refers to functional neurosurgery for the treatment of central nervous system disorders by placing microelectrodes into specific intracranial targets guided by imaging (CT, MRI) positioning and stereotaxic devices. Stereotaxic instruments at home and abroad are all bow-shaped locators at present, and the principle is the spherical center method. The steps of use are as follows: First, use the stereotaxic head frame as a reference mark for image positioning, place the brain in a three-dimensional space, and measure the Cartesian coordinates (X, Y, Z) of the target point. Secondly, by adjusting the X, Y, and Z arms on the stereotaxic instrument, the center of the arc bow on the stereotaxic instrument coincides with the target point. Finally, the ...

AI Technical Summary

Problems solved by technology

However, considering the high price of intracranial electrodes and the fact that multiple intracranial electrode placements will cause certain damage to brain tissue, how to make a single electrode pass through multiple intracranial targets has important clinical value.

Methods and stereotaxic devices for stimulating multiple targets with a single electrode are not currently available

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