Humerus near-end special-shaped block

Abstract

The invention relates to a humerus near-end special-shaped block. The humerus near-end special-shaped block specifically comprises a first fixing part and a second fixing part, wherein the inner surface of the first fixing part is an arc-shaped surface; and the first fixing part comprises two top locking screw holes located at the upper portion of the first fixing part. A first oblique insertion locking screw hole is positioned below the top locking screw hole; a second oblique insertion locking screw hole is positioned below the first oblique insertion locking screw hole; the two middle locking screw holes are positioned below the second oblique insertion locking screw holes; a third oblique insertion locking screw hole is positioned below the middle locking screw hole; the two lower locking screw holes are positioned below the third oblique insertion locking screw holes; the second fixing part comprises a fixing screw hole located at the surface of the second fixing part; and a connecting rod is connected with a round hole and located on the side surface of the second fixing part.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments, in particular to a special-shaped block at the proximal end of the humerus. Background technique [0002] With the acceleration of population aging, the incidence of fractures is also increasing. Among them, humerus fracture is a very common injury. When treating humerus fracture, it is necessary to use fixing devices such as connecting rods to firmly connect and fix the broken bones together to reset the broken bones. [0003] During use, in order to ensure the fixation of the connecting rod to the humerus, a fixing device is installed on both ends of the connecting rod, which can avoid the displacement of the bone, facilitate the patient to exercise properly, and restore the function of the bone to the maximum extent. The existing fixing device In order to achieve the purpose of stabilizing the humerus, the screws installed on the surface of the fixation device are generally dense...

AI Technical Summary

Problems solved by technology

[0003] During use, in order to ensure the fixation of the connecting rod to the humerus, a fixing device is installed on both ends of the connecting rod, which can avoid the displacement of the bone, facilitate the patient to exercise properly, and restore the function of the bone to the maximum extent. The existing fixing device In order to achieve the purpose of stabilizing the humerus, the screws installed on the surface of the fixation device are generally dense, which has the following defects: 1. Too many screws are implanted, and the drilling damages the structure of the humerus. It is easy to cause deformation of the humeral head; 2. The implanted screws exist in the humerus for a long time, which will affect the blood circulation and cause lesions of the humeral head; 3. Except for the preset screw holes on the surface of the fixation device, when it is close to the humerus, it will cause discomfort to the patient

Images