Spinal cord injury condition monitoring method based on somatosensory evoked potential signal

An evoked potential and spinal cord injury technology, applied in the field of medical devices, can solve the problems of misjudgment accuracy, incomplete judgment methods, and time-consuming manual judgment methods, so as to improve the accuracy, prevent spinal cord injury accidents, and shorten the judgment time. Effect

Inactive Publication Date: 2014-07-30
INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a method for monitoring spinal cord injury status based on somatosens

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  • Spinal cord injury condition monitoring method based on somatosensory evoked potential signal
  • Spinal cord injury condition monitoring method based on somatosensory evoked potential signal
  • Spinal cord injury condition monitoring method based on somatosensory evoked potential signal

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Example Embodiment

[0019] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] A spinal cord injury monitoring method based on somatosensory evoked potential signals is realized based on the previous patent application "Spinal Cord Monitor (Application No.: 2013206371114)". The spinal cord monitor collects, amplifies, and filters the somatosensory evoked potential (SEP) signal through front-end electrodes, amplifiers, and filters, and sends it to the CPU. The CPU extracts the characteristic parameters of the somatosensory evoked potential signal and analyzes the spinal cord injury status Conduct monitoring and evaluation. The spinal cord injury monitoring method comprises the following steps:

[0021] Step 1: Obtain the somatosensory evoked potential signal, decompose the somatosensory evoked potential signal in the time domain and frequency domain by using the short-time Fourier transform method, and obtain the t...

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Abstract

The invention relates to a spinal cord injury condition monitoring method based on a somatosensory evoked potential signal, which is mainly and technically characterized by comprising the following steps: step 1, obtaining the somatosensory evoked potential signal, decomposing the somatosensory evoked potential signal on a time domain and a frequency domain by adopting a short-time Fourier transformation method to obtain a time domain signal and a frequency domain signal; step 2, carrying out abnormal early warning judgment according to the change rate of the somatosensory evoked potential signal on the time domain signal and the frequency domain signal. The spinal cord injury condition monitoring method has the benefits that the somatosensory evoked potential (SEP) signal is decomposed into the time domain signal and the frequency domain signal, and the change rate of the somatosensory evoked potential signal is monitored, so that the function of monitoring the spinal cord injury condition is automatically realized, the problem of error caused by incomplete criterion in the prior art is solved, the monitoring accuracy is improved, the judgment error is reduced, and the judgment time is effectively shortened; meanwhile, an early warning can be technically sent out if the abnormal situation occurs, so that the occurrence of spinal cord injury accidents is prevented.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a spinal cord injury monitoring method based on somatosensory evoked potential signals. Background technique [0002] Spinal surgery is a high-risk operation. In spinal surgery (such as spinal deformity surgery) and cardiac surgery (such as aortic aneurysm surgery), spinal cord injury is often caused by spinal cord ischemia or mechanical traction / compression. Mild cases of this kind of injury can cause quadriplegia, and severe cases may cause hemiplegia, paraplegia or even life-threatening. Therefore, intraoperative spinal cord monitoring has become a necessary routine monitoring method. The spinal cord monitor is an instrument for monitoring and evaluating spinal cord injury during spinal cord surgery. It uses the spinal cord somatosensory evoked potential (SEP) method to monitor and evaluate nerve damage. [0003] The existing spinal cord somatosensory evoked potential...

Claims

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Application Information

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IPC IPC(8): A61B5/00
Inventor 徐圣普徐晗辉胡勇谢小波崔红岩冯莉蒲江波李佳宁
Owner INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI
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