Wrist joint movable connecting rod for fixing across wrist joint

Abstract

The invention relates to a wrist joint movable connecting rod for fixing across a wrist joint, which comprises a metacarpal bone movable seat (2), a radius movable seat (2'), a metacarpal bone connecting rod (1) fixed on the metacarpal bone movable seat (2), a radius connecting rod (9) connected with the radius movable seat (2') and an elasticity-adjustable locking bolt (4) connecting the metacarpal bone movable seat (2) and the radius movable seat (2'). The wrist joint movable connecting rod for fixing across the wrist joint overcomes the defect that: when the surrounding of the wrist joint fractures, the conventional fixation of the wrist joint can cause blood supply obstacles and tissue ischemia and hypoxia of wrist joint surrounding tissues and further cause the disuse change of joint capsules, ligaments, joint surrounding tissues and bones. The wrist joint movable connecting rod for fixing across the wrist joint can bring function exercise to the wrist joint earlier without affecting the fixation and the recovery of the fracture.

Description

technical field [0001] The invention relates to an orthopedic medical device, in particular to a movable connecting rod fixed across the wrist joint, which belongs to a connecting rod for external fixation in orthopedics. It is suitable for the treatment of fractures of the distal end of the radius and ulna and wounds around the wrist joint. Background technique [0002] For various types of fractures of the radius and the distal end of the ulna and trauma around the wrist joint, the existing main treatment methods are internal fixation or external fixation. Internal fixation treatment has large wounds, heavy bleeding, long operation time and complicated operation, is not suitable for the treatment of open fractures, and requires a second operation to remove the implants. Although external fixation treatment has the advantages of small wound, less bleeding, short operation time, can meet the treatment of open fractures, and does not require secondary surgery, etc. In the e...

AI Technical Summary

Problems solved by technology

[0006] When there is a fracture around the wrist joint, the fixation of the wrist joint can cause blood supply disorders to the tissues around the wrist joint, causing tissue ischemia and hypoxia, resulting in disuse changes in the joint capsule, ligaments, surrounding tissues and bones, and finally causing joint fibrosis Ankylosis and functional impairment. Although the blood supply of the tissues around the joints is restored after the limb joints are removed from the brake, and the slight movement of the joints improves the nutrition of the tissues and gradually restores the degeneration of the joint tissues, but this recovery is extremely slow

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