Finger rehabilitation training device

Abstract

The invention discloses a finger rehabilitation training device. The finger rehabilitation training device comprises an outer shell, an outer shell cover, an arm support, a wheel disc, a four-finger sleeve mechanism, a four-finger bending movement device (wheel disc driving mechanism), a four-finger inwards retracting / outwards extending movement device (lead screw mechanism), a thumb sleeve mechanism and a thumb bending movement device (gear and rack mechanism). The arm support is fixedly connected to the outer shell cover, the wheel disc is located in the outer shell and next to the lower surface to the outer shell cover, the four-finger sleeve mechanism is vertically and fixedly connected to the position above the wheel disc, the wheel disc driving mechanism is connected to the position under the center of the wheel disc and fixedly connected in the outer shell, the lead screw driving mechanism is located in the outer shell, vertically and fixedly connected with the position below the wheel disc and connected with the four-finger sleeve mechanism, the gear and rack mechanism driving mechanism is vertically and fixedly connected to the outer shell cover and connected with the thumb sleeve mechanism vertically and fixedly connected to the outer shell cover. The finger rehabilitation training device can achieve bending and inwards retracting / outwards extending movement of the four fingers and the bending movement of the thumb, and is reasonable in structure, safe, reliable, easy to operate and capable of helping a patient to do comprehensive passive rehabilitation training for the knuckles.

Description

technical field [0001] The invention relates to a finger rehabilitation training device, which is mainly used for passive rehabilitation training for patients with finger motor dysfunction, and belongs to the field of medical appliances. Background technique [0002] Rehabilitation robots are the perfect combination of rehabilitation medicine and robotics. The main role of rehabilitation robots in medical practice is to help patients recover their limb movement functions. The use of robots for assisted rehabilitation training is only just beginning. For patients with fractures, tendon ruptures or nervous tension, their knees, shoulders, elbows and other joints may be stiff. According to statistics from the Ministry of Health, there are currently more than 10 million patients with different degrees of finger joint dysfunction in my country, so many institutions start Research on the joint rehabilitation training device. At present, the rehabilitation training devices used fo...

AI Technical Summary

Problems solved by technology

In order to enable patients to receive comprehensive rehabilitation treatment, many institutions are currently conducting design research on finger rehabilitation training devices. The RELIVER RL-100 hand rehabilitation training device developed by MAREF in South Korea automatically drives fingers / wrists through wave-like air pressure. With the help of the mandatory exercise training of this instrument, symptoms such as finger / wrist numbness and paralysis will be greatly improved, but the system is relatively complicated, requiring a special air source, and the range of motion of the fingers is limited; a 8091 developed by the French KINETEC company Portable hand continuous passive motion rehabilitation device, the instrument is equipped with soft splints and accessories, comfortable double-sided soft splints help improve patient compliance, can adjust the deviation of the ulnar or radial wrist joints, and the fixed parts make the driving arm It is aligned with the patient's joints and can be assembled quickly. The non-slip finger cot can be put on and taken off quickly. It is driven by a motor and has a relatively large range of motion. However, there is no length adjustment function, and the ability to adapt to the size of the hand (finger length change) is poor. High-performance servo motors are required, and the price is relatively high; in 2001, American researchers developed a manipulator for rehabilitation training of five fingers. It is fixedly connected to the end of the mechanism, and the stretching movement of the steel wire drives the fingertips to straighten, and then drives the entire finger to realize the stretching movement. The under-actuated control method is adopted. The rehabilitation movement of each finger is driven by a motor, and a total of 5 motors are used. Drive, the manipulator is compact in structure and easy to control. The disadvantage is that it cannot establish finger angle and force information, poor perception ability, and insufficient feedback on the effect of rehabilitation training; the rehabilitation training for hand motor dysfunction developed by Harbin Institute of Technology The manipulator adopts gear transmission and integrates mechanical sensors and angle sensors to realize movement. This device can only train a single finger, and its rehabilitation effect is limited.

Images