Finger rehabilitation training apparatus based on three four-bar mechanisms

Abstract

The invention discloses a finger rehabilitation training apparatus based on three four-bar mechanisms, which comprises a first joint, finger cots, and pressure sensors. A second joint is connected tothe lower right corner of the first joint; a third joint is mounted at the lower right corner of the second joint; a fixing plate is connected to the lower right corner of the third joint; the fingercots are fixed to the middles of the lower surfaces of the first, second and third joints respectively; the pressure sensors are fitted in the upper ends of the finger cots; a controller is connectedabove each pressure sensor. Maximum rotational angles of the third, second and third joints may reach 90 degrees, satisfactory to the structural features of human fingers, full flexural motor trainingcan be ensured for fingers, and training effect is improved accordingly; the pressure sensors in the finger cots can sense motion of the user's fingers; a power mechanism is started to perform driving through the controllers so as to assist the user's finger joints in moving.

Description

technical field [0001] The invention relates to the technical field of medical rehabilitation training devices, in particular to a finger rehabilitation training device based on three four-bar mechanisms. Background technique [0002] Phalangeal fractures are the most common in the hand. Most of them are open fractures, and most of them are caused by direct violence. They can cause various types of fractures at any part of the finger. Due to different parts, phalanx fractures are pulled by tendons from different directions. Pull action, resulting in displacement in different directions, such as the fracture of the middle part of the proximal phalanx, which is pulled by the interosseous muscles and lumbrical muscles, resulting in an angle to the palm side, and the fracture of the middle phalanx distal to the insertion point of the superficial flexor tendon , because its pulling also produces volar angulation, such as a fracture at the proximal end of the superficial flexor te...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a finger rehabilitation training device based on three four-bar mechanisms, which solves the problem that the existing finger rehabilitation training devices on the market are inconvenient to wear, inconvenient for patients to use daily, and the problem of the entire training device The bending degree is difficult to reach 90 degrees, and it is impossible to completely assist the patient's finger knuckles to perform bending training, and the existing training device is difficult to sense the movement of the patient's finger first, and then use external power to assist the finger to move

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