Elbow joint function rehabilitation device

Abstract

The invention discloses an elbow joint function rehabilitation device which is characterized by comprising an elbow joint lining, an upper arm bone locating plate, a front arm bone locating plate, a hinged shaft, a recovery drive device and a pin shaft. The recovery drive device comprises a drive box, a control system, a servo motor, a programmable logic controller (PLC), a drive rod, a drive threaded sleeve, a driving bevel gear and a driven bevel gear. The upper arm bone locating plate is fixed on the outer circumference of the upper half portion of the elbow joint lining. The front arm bone locating plate is fixed on the outer circumference of the lower half portion of the elbow joint lining. Two sides of the lower end of the drive box are respectively hinged with the front arm bone locating plate through the hinged shaft. The servo motor is arranged in the drive box. An output shaft end of the servo motor is provided with the driving bevel gear. One end of the drive rod is connected with the drive box and the other end of the drive rod is connected with the drive threaded sleeve in a threaded mode through a set thread portion. The drive rod in the drive box is fixedly connected with the driven bevel gear. The driven threaded sleeve is hinged with the upper arm bone locating plate through the pin shaft. An encoder is arranged on the servo motor. The encoder is respectively and electrically connected with the control system through the PLC. The elbow joint function rehabilitation device has the advantages of being novel in structure, rapid in function recovery, capable of moving actively and the like.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an elbow joint function recovery device. Background technique [0002] Elbow stiffness and limited range of motion are common complications following elbow trauma or surgery. Soft tissue is the main cause of elbow stiffness. Orthoses use the principle of creep or stress relaxation to increase the passive range of motion (ROM) of the joint, and play an important role in the rehabilitation of post-traumatic elbow dysfunction. Orthotics should follow basic design and application principles. Clinical experience and research have shown that through reasonable design and application, orthoses can effectively improve the ROM of post-traumatic elbow stiffness. [0003] Disadvantages of traditional rehabilitation equipment: 1. Traditional rehabilitation machines are designed to prevent elbow joint adhesions by passively moving the elbow joint. When the elbow joint is not stiff...

AI Technical Summary

Problems solved by technology

[0003] Disadvantages of traditional rehabilitation equipment: 1 Traditional rehabilitation machines are designed to prevent elbow joint adhesions by passively moving the elbow joint

However, in the early stage (within one week) after complicated elbow joint surgery, too much activity can easily cause hemorrhage in the elbow joint to not be well absorbed, and the incision cannot heal on schedule, which increases the stress at the fracture site and affects the early formation of original callus; In clinical practice, it is found that the final extension of the elbow joint is difficult to correct, and rehabilitation machines are required to provide overcorrection training for the elbow joint. The range of motion that traditional rehabilitation equipment can provide is 0-140, which is within the normal range of motion of the elbow joint and cannot effectively offset the anterior elbow joint. Resisting force due to lateral soft tissue contracture, leaving a loss of elbow range of motion

Images