Research On The Structure And Control System Of Finger Rehabilitation Equipment

Stroke disease is currently one of the three major diseases that seriously threaten human health.At the same time,the disease has a high probability of causing hemiplegia.Among them,the number of patients with hemiplegia of hand function is the majority.Human hands are the most frequently used and most flexible organs in daily life of the human body.Hand rehabilitation training has become an important rehabilitation demand for patients with hemiplegia.Therefore,the research of finger rehabilitation equipment has become one of the current research hotspots in the medical field.This article first analyzes the current research status of finger rehabilitation equipment at home and abroad,and combines the biological characteristics of human hands to design a finger rehabilitation training equipment to help patients with hand dysfunction in rehabilitation training.The specific research content is as follows:(1)First,analyze the biological characteristics of the human hand.According to the skeletal structure of the human hand,and use the D-H parameter method to analyze the spatial kinematics of the human hand skeletal structure,provide theoretical support for the finger rehabilitation equipment designed in this article.(2)Secondly,the kinematics simulation of the index finger component in the finger rehabilitation equipment under the active and passive control mode was carried out to verify the rationality of the mechanism design.Import the designed threedimensional model of the index finger training component into the ADAMS simulation software,and re-establish the matching relationship of each component,set the driving function,and obtain the motion information of each joint of the index finger after the motion simulation analysis.It can be seen from the simulation results that the index finger training component of the finger rehabilitation device has good flexibility,and can complete preset bending/stretching actions during exercise.(3)Finally,complete the design of the finger rehabilitation equipment control system,including the control circuit design and module selection of the lower computer and the design of the human-computer interaction interface.The lower computer control system uses STM32 as the system control core to realize the control of pressure sensors,bending sensors and linear motors.The human-computer interaction interface is designed based on the Android system.The functional modules include training mode selection and training parameter setting functions.(4)In order to test the reliability of the entire system,this paper completed the active and passive rehabilitation training experimental test of finger rehabilitation equipment.The experiment content includes hand rehabilitation training experimental test in passive rehabilitation training mode and hand rehabilitation training experimental test in active rehabilitation training mode,which verify the stability and reliability of the system.