Finger motion mechanism and rehabilitation training device for rehabilitation training of hemiplegic patients

Abstract

The invention discloses a finger movement mechanism used for hemiplegic patient rehabilitation training and a rehabilitation training device. The finger movement mechanism comprises a drive rod, a drive rod connecting rod, a front end finger stall connecting rod, a rear end finger stall connecting rod, a front end finger stall and a rear end finger stall. One end of the drive rod is connected with the output end of a force feedback driver through an articulated mechanism. The other end of the drive rod is hinged to the middle of the drive rod connecting rod. One end of the front end finger stall connecting rod and one end of the rear end finger stall connecting rod are connected with the two ends of the drive rod connecting rod respectively. A guide groove is formed in the other end of the front end finger stall connecting rod. The middle of the rear end finger stall connecting rod is arranged in the guide groove in a sliding mode. The front end finger stall is arranged in the front of the guide groove in the front end finger stall connecting rod. The rear end finger stall is arranged at the end of the rear end finger stall connecting rod. The movement mechanism adapts to changes of finger joints automatically, secondary injuries to the joints are avoided, and the finger movement mechanism is suitable for all stages of finger movement and enables the finger movement to be smoother.

Description

technical field [0001] The invention relates to a multi-degree-of-freedom thumb motor function rehabilitation training device for hemiplegic patients. Background technique [0002] The hand is one of the most distinctive organs on the human body. Scientists believe that the hand is one of the three important organs that enable people to have a high degree of intelligence. It is an important tool for human beings to understand and transform the world. It is the most dependent part of people's daily life and one of the most vulnerable parts. Among the five fingers of a person, the thumb is particularly important. It can move in coordination with the other four fingers to complete actions such as holding and pinching. It is very common for various neuromuscular disorders such as stroke to cause loss of hand hemiplegia, and hand flexion and extension is the most frequently damaged motor function, which seriously affects the patient's personal self-care ability and brings social...

AI Technical Summary

Problems solved by technology

Currently existing finger rehabilitation training equipment can already be used for active or passive rehabilitation training of fingers, but because the thumb is the most delicate and dexterous of the five fingers, it has a high degree of freedom, a small range of motion, and is susceptible to damage. Secondary injury, the design requirements for the rehabilitation training system are very high

[0005] At present, the finger rehabilitation devices for hemiplegic patients mostly use the same rehabilitation training mechanism for the thumb as other fingers, but the structure of the thumb is different from other fingers, and the movement is more flexible, which greatly reduces the applicability and training effect of the finger rehabilitation training system

In addition, the driving device mostly uses active driving methods such as motors, compressed air, and electromagnetics, which can easily cause secondary damage to the patient's fingers, and the stability and safety cannot be guaranteed.

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