Electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology

A physiological monitoring and neuroelectric technology, applied in application, diagnostic recording/measurement, medical science, etc., can solve the problems of local magnetic susceptibility changes, MRI image distortion, artifacts, etc., achieve small thermal effects and displacement effects, and do not interfere with magnetic fields. Resonant imaging, the effect of easy operation

Active Publication Date: 2012-08-08
XIAN FRIENDSHIP MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In clinical practice, due to the interaction of electromagnetic fields to produce thermal effects, ferromagnetic metal displacement effects, magnetoelectric effects, etc., problems such as brain tissue damage, monitoring failure, and MRI image distortion may occur during the combined application of the above two. At the same time, the current Most of the monitoring electrodes used are stainless steel electrodes (paramagnetic materials), which have the

Method used

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  • Electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology
  • Electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology
  • Electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology

Examples

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Embodiment 1

[0023] like figure 1 As shown, the electrode for nerve electrophysiological monitoring is made of silver titanium, aluminum, alum, and carbon alloy as a spherical probe electrode. The spherical probe electrode is composed of a head 1, an electrode rod 2, a handle 3, a wire 4 and a plug 5. , its head 1 is spherical, the spherical head is positioned at the top of the electrode rod 2, the lead 4 passes through the handle 3 and the other end of the electrode rod 2 is welded with silver, and the other end of the lead 4 is riveted with the plug 5.

[0024] In the present invention, the length of the electrode is 1-5cm, and the diameter is 1-10mm. The length and diameter can be adjusted according to different clinical and experimental requirements; The head of the electrode can prevent the local current generated by the magnetoelectric effect; the handle 3 is an ergonomic profiling ABS handle, which has a beautiful and smooth appearance, and is simple and convenient to use; the conne...

Embodiment 2

[0029] figure 2 As shown, silver titanium, aluminum, alum, and carbon alloy are used to make a needle-shaped electrode for electrophysiological monitoring of nerves. The needle-shaped electrode is composed of a needle-shaped head 6, a handle 7, a wire 4 and a plug 5. The needle-shaped head The part is located at the top of the handle 3, the wire 4 passes through the handle 3 and is welded with the needle head with silver, and the other end of the wire 4 is riveted with the plug 5.

[0030] The length of needle electrode of the present invention is usually 1-5cm, and diameter is 1-10mm, and this length and diameter can be adjusted according to different clinical and experimental requirements, and described handle 7 adopts polytetrafluoroethylene insulating sleeve insulation, is used for The head of the protective electrode can prevent the magnetoelectric effect from generating local current; the connection mode between the handle 7 and the wire 4 is silver welding, which can e...

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Abstract

The invention belongs to the field of medical instruments and auxiliary devices, and in particular relates to an electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology. The electrode comprises a probe electrode and a pin electrode, wherein the probe electrode is a spherical probe electrode, and the pin electrode is a pin-shaped electrode. The spherical probe electrode is composed of a head portion, an electrode rod, a handle, a wire and a plug. The pin type electrode is composed of a pin-shaped head portion, a handle, a wire and a plug. The wire penetrates through the handle to be welded with the head portion through silver, and the other end of the wire is rivet joint with the plug. A high field intensity magnetic field has small influence on the electrode for monitoring, and a heat effect and a displacement effect are small. The electrode for monitoring does not generate extra current and tissue burn, and can be safely applied in a high field intensity environment without interfering magnetic resonance imaging. A recording electrode does not need to be removed when nerve electrophysiology monitoring is performed, image analysis is not influenced, and operation is convenient, simple and standard.

Description

technical field [0001] The invention belongs to the field of medical equipment and auxiliary devices, and relates to an intraoperative monitoring device used in a magnetic resonance imaging (Magnetic Resonance Imaging, MRI) environment, in particular to an electrode for intraoperative neurophysiological monitoring compatible with high-field magnetic resonance. Background technique [0002] In current clinical treatment, tumor surgery in the functional area is aimed at maximum tumor resection and minimum functional damage, and the combined application of intraoperative neurophysiological monitoring and intraoperative magnetic resonance real-time image navigation is currently the key to improving tumor resection rate and reducing postoperative trauma. An important measure of the incidence of neurological impairment. In clinical practice, due to the interaction of electromagnetic fields to produce thermal effects, ferromagnetic metal displacement effects, magnetoelectric effect...

Claims

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Application Information

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IPC IPC(8): A61B5/04A61B5/055
Inventor 翟映川朱凤平吴劲松许耿姚成军庄冬晓毛颖周良辅
Owner XIAN FRIENDSHIP MEDICAL ELECTRONICS CO LTD
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