Method for traction force quantitative control in manual reduction of distal radius fracture

Abstract

The invention discloses a method for traction force quantitative control in manual reduction of distal radius fracture, a thumb, an index finger and a middle finger of a patient are locked with a traction motor through a finger-cot to pull the wrist of the patient, the traction motor is controlled to synchronously move forwards and backwards along the arm of the patient, a controllable tensile force is generated in cooperation with a wrist fixing and elbow confronting structure of the patient, the PLC drives a base of the traction motor to horizontally rotate in the ulnar deviation direction through an ulnar deviation servo motor, and under the condition that the current tensile force is kept unchanged, the tensile force is pulled by a first set angle in the ulnar deviation direction in cooperation with the wrist fixing and elbow confronting structure, the PLC drives a sliding module to vertically move in the palmar flexion direction through a palmar flexion servo motor, under the condition that the current tensile force is kept unchanged, the tensile force is pulled by a second set angle in the palmar flexion direction in cooperation with the wrist fixing and elbow confronting structure, the traction force in manual reduction of distal radius fracture can be controlled accurately, and the controlling cost is reduce.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a method for realizing traction quantitative control in manipulative reduction of distal radius fractures. Background technique [0002] Distal radius fracture is one of the most common fractures encountered by orthopedic surgeons, accounting for about 1 / 6 of all fractures in the whole body. It mainly occurs in two groups of people: young patients and elderly patients. The former is mainly caused by high-energy injuries of sports or traffic, and often combined with cartilage and ligament injuries; the latter is usually caused by low-energy injuries due to the existence of osteoporosis. Fractures can result from injury, and fractures can vary in severity. With the aging of society, as a representative of osteoporotic fractures, the incidence of distal radius fractures in elderly patients has been high. [0003] Doctors use different treatment options depending on the t...

AI Technical Summary

Problems solved by technology

However, there are some problems in manual reset, such as: the reset process is time-consuming and laborious, and the doctor’s physical strength is limited, so it is difficult to maintain a stable and accurate traction force for a long time, resulting in poor reset effect; the reset technique depends on clinical experience, cannot form a standard, and stagnates in empirical operations ; The reset process cannot be quantified, and there is a lack of research on the mechanism of related reset mechanics and other related issues

[0008] There are also some auxiliary devices on the market that have the traction function of the wrist joint, but the operation process cannot be quantified, the effect is limited, and it cannot provide help for the relevant reset mechanism

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