Auxiliary wing type steel plate

Abstract

The invention discloses an auxiliary wing type steel plate which comprises a locking module and a gripping module fixedly connected with the locking module. The locking module is provided with a horizontal connection face which is provided with screw connection holes. The gripping module comprises a plurality of inner-arc-shaped gripping arms. When the auxiliary wing type steel plate is installed, the locking module is connected with a locking compression plate, comminuted fracture blocks are effectively gripped through the gripping module, the auxiliary wing type steel plate is buckled to the locking compression plate, and the auxiliary wing type steel plate can slide at will according to actual needs; when the comminuted fracture blocks are effectively gripped through the gripping module, the auxiliary wing type steel plate is locked to a locking connection plate by means of the locking module through screws, fixation of the fracture end can be maintained, the fracture end can beneficially heal, and the auxiliary wing type steel plate is used for the field of medical instruments.

Description

technical field [0001] The invention relates to a medical internal fixation device, in particular to an auxiliary wing-shaped steel plate for treating comminuted fractures. Background technique [0002] For comminuted fractures of the long bones of the extremities, open reduction and internal fixation are often used clinically. The internal fixation devices used are mainly locking compression plates, interlocking intramedullary nails, and memory alloy embracing bone plates. A large number of biomechanical experiments and clinical treatment results show that They have good side bending resistance, anti-rotation performance and axial stability. [0003] However, for the treatment of comminuted fractures, steel wire binding or lag screw fixation is often used clinically, or even not treated, resulting in more complications. The following situations often occur: 1) The binding belt will affect the formation of periosteum and callus , affects the blood supply of the fracture sit...

AI Technical Summary

Problems solved by technology

3) Direct internal fixation with TiNi memory alloy embracing device, its anti-rotation and anti-side bending performance is the weakest among the above-mentioned internal fixators, especially it is difficult to effectively maintain the comminuted fracture fragments, and the fracture ends are prone to misalignment Qi, indirect fracture malunion

It is reported in the literature that the incidence of malunion with internal fixation is 0% to 30%, and the malalignment may even potentially change the contact surface of the tibial joint, increasing the risk of cartilage degeneration and degenerative joint disease

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