Reaserch On Intraoperative Neurophysiological Monitoring And Early Warning System For Robot Assisted Minimally Invasive Spine Surgery

With the rapid development of image processing technology,medical technology and robot technology,the research of medical surgical robot has become the frontier of robot field.The robot assisted minimally invasive surgery of the spinal column has a high risk and high difficulty.The neurologic complication is an unavoidable problem for the clinicians.In the operation,the introduction of electrical monitoring technique can monitor exercise and sensory function and reduce iatrogenic injury.This project provides an stimulator based on the Cadwell signal stimulation instrument platform,using the Bio Radio physiological signal multichannel monitoring equipment to monitoring,constructing neurophysiological monitoring and early warning system based on wireless Bluetooth transmission.Wireless transmission avoids the interference caused by redundant signal lines in the operating environment.In order to analyze the signal accurately,design the data preprocessing algorithm,which is processed by Fourier analysis,and eliminate the baseline drift of EMG signal by two median filtering.Extracting the feature of EMG signals and obtaining the wave peak and the trough information of the signal.Comparing the feature of the signal and setting the eigenvalues of the baseline,the amplitude ratio is used as a warning reference information.According to the functional requirements design the MFC interface display window.The interface includes two parts,signal monitoring and early warning display.Under the experimental,we monitored the electromyogram and somatosensory evoked potential of upper limb,and monitored the spontaneous electromyogram and somatosensory evoked potential of the upper limb.Analysis the results of monitoring,comparing the amplitude of somatosensory evoked potential in different stages of mechanical intervention,and recording the somatosensory evoked potential at different levels of anesthesia.To verify the effect of different stages of somatosensory evoked potential and anesthetic on somatosensory evoked potential monitoring in different stages of operation.The human evoked EMG monitoring was used to obtain the expected effect,which verified the correctness and rationality of the whole research method.