An experimental method for the reconstruction of rat leg movement based on electrical excitation of spinal nerve function

Abstract

The invention relates to a rat leg motion reconstruction test method based on spinal nerve function electrical stimulation. Corresponded three-dimensional coordinates based on spinal segments are established while rat spinal cord is focused, a tester can find out an electrode implanting position rapidly and accurately, and the success rate of tests is increased; excitation pulses are transmitted to two electrodes inserted into the rat spinal cord alternately, coherent stretching motions of the rat leg can be implemented, and the tester can grasp the process of rat spinal cord electrical stimulation more directly; meanwhile, the electromyographic signals of rat leg muscles can be collected through an electromyographic monitor and are used for comparison and analysis. By the aid of test method, the rat leg stretching motion reconstruction based on the spinal nerve function electrical stimulation can be completed, and important significance is provided for the fields of scientific research and teach; the operating ability of the tester is improved, the tester can grasp complex spinal cord stimulation tests which are difficult to grasp more easily, and the further academic research of the tester can be benefited.

Description

technical field [0001] The invention relates to an experimental method for rat leg movement reconstruction based on electrical stimulation of spinal nerve function, belonging to the field of biomedical engineering. Background technique [0002] With the development of electronic technology, scientists and rehabilitation medical engineers use functional electrical stimulation (FES) to restore the motor function of patients with spinal cord injury, and it has been successfully applied in clinical trials. Its applications include reconstructing upper limb stretching movements and promoting lower limb standing, balance, posture and gait training. FES is providing new methods and technologies for the rehabilitation of paralyzed patients, especially the restoration of motor function. [0003] Since the normal stretching and stretching of the limbs is not controlled by a single muscle, but by multiple muscles or muscle groups, and the excitation of the muscles is related to the sp...

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Problems solved by technology

Although R.M.Ichiyama et al. found in rat spinal dural stimulation (ESCS) that stimulation of the L3-L6 segment of the spinal cord with short rectangular pulses of 30-50 Hz produced leg withdrawal movements in the lower extremities, Dimitrijevic et al. The pulse stimulation of 25-50Hz in the stimulation will cause the contraction or extension of the lower limbs, while the 5-15Hz pulse stimulation of the spinal cord injured person in the supine state will cause the lower limbs to produce stretching movements, but none of them involve the complete movement of limb extension and contraction realization of

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