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

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

Active Publication Date: 2014-11-26
XIAN FRIENDSHIP MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 following defects: they can cause local magnetic susceptibility changes, which appear as "artifacts" on MRI images
[0003] At present, clinical practice urgently needs high-field magnetic resonance compatible probe electrodes and needle electrodes for intraoperative neurophysiological monitoring that can overcome the above defects, so as to solve the "artifacts" on MRI images caused by local magnetic susceptibility changes in practice. And other issues

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

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Effect test

Embodiment 1

[0023] like figure 1 It is shown that the electrode of this neuroelectronics is made of silver titanium, aluminum, alum, and carbon alloy into a ball -type probe electrode., Its head 1 is a ball type. The ball head is located at the top of the electrode rod 2. The wire 4 is welded with silver through the other end of the handle 3 and the electrode 2. The other end of the wire 4 and the plug 5 riven.

[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 magnetoelectric effect from generating local current; the handle 3 is an imitation ABS handle of the human engineering science, which has a smooth appearance and simple and convenient application.Effectively avoid generating local current and heat; the other end of the wire 4 and the plug 5 rivet; the plug 5 usually uses a gold -plated plug with ...

Embodiment 2

[0028] figure 2 It is shown in the use of silver titanium, aluminum, alum, and carbon alloy to make a needle -type neurotomeen monitoring electrode.At the top of the handle 3, the wire 4 passes through the handle 3 and the needle -shaped head welded with silver, and the other end of the wire 4 and the plug 5 riven.

[0029] The length of the needle-type electrode of the present invention is usually 1-5cm and the diameter is 1-10mm. The length and diameter can be adjusted according to different clinical and experimental requirements.The head to protect the electrode can prevent the magnetoelectric effect from generating local current; the connection method of the handle 7 and the wire 4 uses silver welding, which can effectively avoid local current and calories;5 Usually gold -plated plugs with specifications φ1.5.

[0030] When used, you can use different specifications of needle -type electrodes according to different parts of neuropsychological monitoring during the surgery; in...

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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 is the field of medical devices and auxiliary devices. It involves the monitoring device in the operation of Magnetic Resonance Image (MRI) environment, which involves a high -field strong magnetic resonance and neuropsychological monitoring electrode. Background technique [0002] At present, the tumor surgery of the functional area is aimed at maximum tumor resection and minimum functional damage. In combination of neuropsychological monitoring and magnetic resonance in the operationAn important means of neurological injury incidence.In clinical practice, because the electromagnetic field interacts with each other to produce thermal effects, iron magnetic metal displacement effects, magnetic electrical effects, etc., in the process of the joint application of the two above, brain tissue injury, monitoring failure, MRI image distortion and other problems may occur.The monitoring electrode of the application is mostly stainless steel electrode...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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