Talonavicular fusion plate

Abstract

The invention relates to the technical field of medical instruments, in particular to a talonavicular fusion plate which comprises a fusion plate near end, a fusion plate far end and a fusion plate body connecting the fusion plate near end and the fusion plate far end. The fusion plate near end, the fusion plate far end and the fusion plate body are formed integrally. The fusion plate near end is provided with a fixing hole used for being fixedly connected with a talus bone, and the fusion plate far end is provided with a fixing hole used for being fixedly connected with a tarsal navicular bone. According to the talonavicular fusion plate, an anatomic design is adopted, the fusion plate does not need to be bent in advance in an operation, the problem that the fusion plate is prone to loose and fail to be fixed when being fixed by adopting hollow nails, straddle nails and the like is solved, and the problems that in a common fusion plate operation, the fusion plate needs to be bent, as a result, stress concentration is prone to occurring, the fusion plate is broken, the fixing holes are deformed, and the fusion plate is not firmly fixed are solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a fusion plate for the distal scaphoid. Background technique [0002] Post-traumatic osteoarthritis of the talonovicular joint has always been a difficult point in trauma orthopedic treatment, especially the surgical treatment of talonavicular joint fusion, which has high complications. The key to talonavicular joint fusion surgery is the stability of fixation. However, the existing internal fixation techniques such as hollow nails and saddle nails often fail to achieve the expected therapeutic effect, and fusion loosening and fixation failure are prone to occur. [0003] Traditionally, when a common fusion plate is used for fusion surgery of the talonavicular joint, the medical personnel need to bend the fusion plate according to the shape of the patient's bone during the operation, so that the fusion plate can be tightly attached to the bone surface. This treatment met...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the fusion loosening and fixation failure that are easy to occur after the fixation using hollow nails and saddle nails in the prior art, the common fusion plate needs to be bent during the operation, and the bent fusion plate It is easy to cause stress concentration to cause fracture of the fusion plate and easy to cause deformation of the fixing hole, resulting in unstable fixation. The present invention provides a fusion plate for distance boats, which includes the proximal end of the fusion plate, the distal end of the fusion plate and a joint for connection and fusion. The body of the fusion plate at the proximal end of the plate and the distal end of the fusion plate does not need to pre-bend the fusion plate during the operation. During the plate operation, it is necessary to bend and easily form stress concentration, which will cause the fracture of the fusion plate and easily cause the deformation of the fixation hole, resulting in the problem of unstable fixation.

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