External fixer for radius distal fracture

Abstract

The invention relates an external fixator for treating radius far-end bone fracture, wherein ball-shaped cushions are arranged on the bulb structure connected with the long and short fixed bar, eccentric pins are arranged on the long and short fixed bar, thus forming the locking arrangement for the bulb structure, a long screw bolt and a short screw bolt are arranged in the hollow space of the long and short fixed bars, the slide blocks thereon are connected with the fixed blocks on the long and short fixed bars, the surface on the fixed blocks contacting the long and short fixed bars are provided with screw-threaded securing slot, thus accomplishing the action of treating radius far-end bone fracture.

Description

technical field [0001] The invention relates to an external fixation device for fractures, in particular to an external fixator for treating fractures at the distal end of the radius. Background technique [0002] Distal radius fracture is a common and frequently-occurring disease in clinic. The first clinical treatment method is non-surgical treatment, that is, manual reduction, splint or plaster external fixation, but this method is prone to fracture displacement, and the proportion is relatively high; the other is surgical treatment, using open reduction and internal fixation with plates , take out the plate in a second operation, and if the fracture end is comminuted or osteoporosis, the distal end cannot be fixed with screws, and the radius will be shortened in the later stage, and plaster external fixation is often used for fear of fracture displacement after operation. [0003] The use of plaster external fixation prevents early functional exercise of the wrist joint...

AI Technical Summary

Problems solved by technology

[0006] 1. The range of wrist joint functional exercise cannot be gradually increased as the patient's distal radius fracture heals;

[0007] 2. The 360-degree rotation of the bone clamping needle around the frame body is redundant (because the frame itself can be rotated), and the rotation of the bone clamping needle makes the bracket not as close to the human body as possible, which weakens the mechanical properties of the external fixation bracket;

[0008] 3. The extender of the external fixation bracket is a coarse adjustment structure, which is not accurate enough;

[0009] 4. There are high requirements for the position of the threaded needle, and it cannot be adjusted if there is a deviation, and there is no choice for the distance of the threaded needle;

[0010] 5. Relatively speaking, the external fixation bracket has many components and heavy structure

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