Olecroanon locking proximal humerus plate

Abstract

The invention discloses an olecroanon locking proximal humerus plate, which is an integrated plate with a head part and a body part, wherein the head part comprises a face part and a vertex part, and the face part and the vertex part are bended into an angle of 104-115 degrees; the head part is provided with a group of locking holes; the body part is provided with a group of locking holes and pressurizing holes; an angle of inclination of the lower section and the upper section of the body part is 5-9 degrees; the vertex part of the head part is provided with a first locking hole and a second locking hole; a nape is arranged between the first locking hole and the second locking hole; the face part of the head part is provided with a group of thread locking holes and a group of small holes for temporary fixing; and the tail end of the body part is provided with 1-3 holes for temporary fixing. The locking plate can treat olecranal fracture and at the same time complicate fracture shaft ulna, has good olecroanon attach performance with human body, no need of shaping during clinical practice, is convenient for operation, has good stability, and can improve the treatment effect.

Description

technical field [0001] The invention relates to an orthopedic internal fixation device, in particular to an internal fixation device for treating olecranon fractures and olecranon fractures combined with ulnar shaft fractures. Background technique [0002] The human proximal ulna resembles an olecranon (see figure 1 ), the plate used to treat olecranon fractures is customarily called the olecranon plate. The fracture line 100 of the olecranon is often in the middle of the olecranon (see figure 1 ). From a mechanical point of view, olecranon fractures are difficult to treat. The main problem is that the fracture line is at the bend of the olecranon, and the fixation stability is not good. This has long been a difficult point in treatment. Beginning in the seventies, someone adopts bone needle 101 and steel wire 102 to fix to treat olecranon fracture (see Figure 2a , Figure 2b ), and some hospitals with poor medical conditions still use this method. In the past ten yea...

AI Technical Summary

Problems solved by technology

Figure 4 Olecranon plate shown, modified in shape, Figure 3 and Figure 4 The olecranon plate shown is a new type of plate that has appeared in recent years. Both are locking plates, but they still have two shortcomings: a) The number of holes in the head of the plate is relatively small, and it is only suitable for treating ulnar bone. Simple fractures of the olecranon, not suitable for treatment of multiple fractures or comminuted fractures

The disadvantage of this plan is that the steel plate is directly pressed on the periosteum, and a considerable part of the blood supply will be destroyed during the operation, thereby affecting the treatment effect. Another disadvantage is that the number of holes in the head is relatively small, and it is only suitable for the treatment of simple fractures of the olecranon

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