Reset forceps for healing massa lateralis atlantis fractures

Abstract

The invention discloses a pair of reset forceps for healing a massa lateralis atlantis fracture. The reset forceps comprise two forceps arms. The front ends of the forceps arms are bent oppositely, the contour shapes of the front end surfaces of the forceps arms are matched with the shape of the outer side edge of massa lateralis atlantis, and forceps teeth are arranged in the front end surfaces of the forceps arms. In posterior atlantoaxial fusion and before implanting bolts, the front ends of the two forceps arms are used for resetting the separation of the massa lateralis atlantis fracture. A check mechanism between handle parts at the rear of the two forceps arms are used for fixing the expansion angle of the forceps arms in a current position at any time. The end surface shapes of the front ends of the two forceps arms are matched with the shape of the outer side edge of the massa lateralis atlantis, and the forceps teeth are arranged in the front end surfaces of the two forceps arms, thereby stably clamping the separation part of the massa lateralis atlantis fracture. The thicknesses of the front ends of the two forceps arms are more than the thicknesses of the rest parts of the forceps arms, thereby enlarging the contact surface between the front end surfaces of the forceps arms and the massa lateralis atlantis. The reset forceps can be used for realizing the real-time reset of the separation part of the massa lateralis atlantis fracture in an operation and preventing the risk of further separation and displacement of the broken end of the fracture when an internal fixing system is implanted, thus being beneficial to the healing of the fracture end.

Description

Technical field: [0001] The invention relates to the field of human daily necessities, in particular to medical devices, in particular to a temporary fixation system for the reduction of atlas lateral mass fractures, in particular to a reduction forceps for atlas lateral mass fractures. Background technique: [0002] Atlas injuries account for about 2 to 13% of cervical spine injuries and 1.3% of all spinal injuries. A typical burst fracture of the atlas has two fracture lines in the anterior and posterior arches of the atlas, showing the appearance of four fractures. Atypical burst fractures may also be accompanied by fractures of the lateral mass of the atlas. If the atlas burst fracture is accompanied by transverse ligament injury, it is called an unstable atlas burst fracture. Once it occurs, the mechanical stability of the atlantoaxial joint will be severely damaged, resulting in atlantoaxial joint dislocation. It is a serious threat to the patient's life. Although no...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of reduction forceps used for atlas lateral mass fractures, the described reduction forceps for atlas lateral mass fractures should solve the problem that in the prior art, the reduction lateral mass is easy to move during atlas fracture operation. Position, technical problems that lead to difficult healing after surgery

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