Distal bone fracture plate for proximal humerus

Abstract

Disclosed is a distal bone fracture plate for proximal humerus comprising a bone fracture plate body, the bone fracture plate body is divided into a bone fracture plate near end, a bone fracture plate middle section and a bone fracture plate far end, the bone fracture plate near end is divided into a head and a near end connecting section, the head is provided with a plurality of near end locking holes, the near end locking holes tend to be distributed in a nearly-annular structure. Near-end upper kirschner wire holes are formed in the middle of the annular structure, near-end kirschner wire holes are formed in the periphery of the near-end locking holes, near-end lower locking holes are formed in the lower ends of the near-end locking holes, middle-section sliding holes and middle-section locking holes are formed in the middle of the bone fracture plate from top to bottom, the number of the middle-section locking holes is multiple, and the number of the middle-section locking holes is multiple. A middle-section kirschner wire hole is formed between every two adjacent middle-section locking holes, and a far-end sliding hole, a far-end locking hole and a far-end kirschner wire hole are formed in the bone fracture plate far end from top to bottom. The middle Kirschner wire hole is formed in the middle section of the bone fracture plate, so that the problems that positioning is inaccurate, or small bone blocks have no place and are not easy to fix can be solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a humerus proximal lateral bone plate. Background technique [0002] When subjected to external impact or cumulative strain, the continuity of the bone structure may be completely or partially broken, that is, a fracture occurs. In order to ensure the connection and fixation of the broken ends of the bone and ensure the normal healing of the fracture, we use the method of fixing the bone plate in the body for treatment, and the proximal humeral lateral bone plate is one of them. However, the existing proximal humerus lateral bone plate has many disadvantages, for example, there are only locking holes on the bone plate, which cannot fit the bone to the bone plate well. Because the head of the screw is threaded, when it is rotated to a certain degree, the locking screw will be locked with the bone plate, so that it cannot continue to drive the bone plate to move toward the...

AI Technical Summary

Problems solved by technology

However, the existing proximal humerus lateral bone plate has many shortcomings, for example, there are only locking holes on the bone plate, which cannot fit the bone to the bone plate well

Because the head of the screw is threaded, when the screw is rotated to a certain extent, the locking screw will be locked with the bone plate, so that it cannot continue to drive the bone plate to move toward the bone

Ultimately, the bone and the bone plate are only attached or there is a distance between them, and the stability of the internal fixation bracket is reduced, resulting in a deviation in the reduction of the fracture and affecting the healing of the fracture; when the proximal humeral bone plate is used, the distal end may warp , The phenomenon of not fitting the bone surface increases the risk of fracture of the bone plate and screws, and is not conducive to the healing of the fracture; when the proximal humerus lateral bone plate is used, the positioning may be inaccurate in the middle segment, or broken bone fragments nowhere fixed phenomenon

In fractures with relatively many fragments, due to the large number of fractured bone fragments, sometimes only bone plates and screws cannot be used to completely fix all the bone fragments, resulting in loss and displacement of bone fragments, which is not conducive to recovery; When the bone plate is used to treat proximal humeral fractures with joint capsule and rotator cuff tears, the sutures cannot be fixed on the bone plate, and the bone plate cannot be fine-tuned after screwing in, and the fracture end may be displaced during the operation , leading to poor prognosis

Images