Spasticity evaluation system and device based on myotatic reflex threshold value and resistance variable

Abstract

The invention relates to the field of medical instruments and relates to a spasticity evaluation system and device based on the myotatic reflex threshold value and the resistance variable. The device comprises a detection head, a surface electromyogram, a computer and a display screen. The detection head integrates pressure, angle, speed and acceleration sensors and is connected with the computer through a data line or Bluetooth. The surface electromyogram records the electromyographic signals of measured muscles through surface electrodes. The computer analyzes the limb resistance variable, the stretching activity speed and the acceleration generated during a stretching activity and records the joint angle of triggering of myotatic reflex. A linear regression equation of the stretching speed-joint angle of triggering of myotatic reflex is established and the joint angle-myotatic reflex threshold value on the condition of the theoretical stretching speed 0 is obtained. The display screen can display the stretching speed animation preview, the myoelectric activity and the stretching resistance change. The evaluation system and device can solve the problem in accurate evaluation of the upper motor neuron syndrome (UMNS) in rehabilitation medicine, can better perform quantitative evaluation of spasticity therein, and facilitate further selection of reasonable intervention projects.

Description

technical field [0001] The invention belongs to the field of medical devices and relates to a rehabilitation evaluation device, in particular to a spasticity evaluation system and device based on stretch reflex threshold and resistance variable. Background technique [0002] Spasticity is a common problem in rehabilitation medicine, which often affects the quality of life of patients due to impairment of function; in a narrow sense, spasticity refers to a movement disorder, manifested as hyperactivity of speed-dependent stretch reflex (SR), accompanied by hyperreflexia of tendons And (or) clonus, is one of the symptoms of upper motor neuron syndrome (uppermotorneuronsyndrome, UMNS). It is estimated that there are more than 12 million spasticity patients in the world, and a considerable part of them will develop spasticity that needs treatment; studies have shown that long-term muscle spasticity will cause thixotropic changes and contractures, which are theoretically believed...

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Problems solved by technology

[0008] But so far, there is no report on the spasticity evaluation device based on stretch reflex threshold and resistance variable; in view of this, the inventor of the application intends to provide a spasticity evaluation system based on stretch reflex threshold and resistance variable device

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