Locking plate with conical flower-shaped holes

Abstract

The invention discloses a locking plate with conical flower-shaped holes, and relates to the field of medical tools. The locking plate comprises a locking plate near end, a locking plate far end and alocking plate body which is connected with the locking plate near end and the locking plate far end, wherein the locking plate near end is in a Y shape, the locking plate is provided with a bone connection surface, and the bone connection surface is matched with the shape of the inner side surface of the proximal humerus; a plurality of fixing holes used for fixing the locking plate on the innerside of the proximal humerus are formed in the locking plate far end and the locking plate body; the fixing holes comprise fixing locking holes and fixing pressurizing hole grooves, and the two conical flower-shaped holes are symmetrically formed in the locking plate near end. The inner side of the humerus is fixed through the locking plate, with conical flower-shaped holes, at the proximal humerus, a strong inner column support is provided, inversion stress is resisted, and the internal fixation biomechanical strength is remarkably increased; the problems that in the prior art, a locking plate with outer side conical flower-shaped holes easily causes humerus inversion, collapse and internal fixation and fracture, and the excision incidence rate is high are effectively solved.

Description

technical field [0001] The invention relates to the field of medical tools, in particular to a conical rosette locking plate. Background technique [0002] The humerus is located in the upper arm, also known as the upper arm bone, and its proximal end is the hemispherical head of the humerus, which forms the shoulder joint with the glenoid of the scapula. Proximal humeral fracture is a common fracture with an incidence rate of about 2.5% of all fractures in the whole body. It is more common in young adults with high-energy trauma and elderly fractures with loose fractures. The purpose of treatment is to restore the function of the shoulder joint to the maximum extent. The healing of conservative treatment is often unsatisfactory, and the previous internal fixation technology is difficult to achieve strong stability so that the shoulder joint can perform early and safe functional exercises, especially for comminuted fractures of the proximal humerus. There are many options an...

AI Technical Summary

Problems solved by technology

The medial column of the plate is supported by locking screws or bone moment screws, but during clinical follow-up, when osteoporosis or medial column comminuted lacks bony support, it is easy to cause humeral head varus, collapse, internal fixation fracture, and cut out.

The reasons for the failure of the lateral conical flower hole locking plate are: 1. Biomechanical stability problems, the resistance to varus stress is still weak, resulting in internal fixation failure; 2. Avascular necrosis of the humeral head, fractures lead to damage to the blood supply of the humeral head

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