Artificial axis support body

Abstract

The invention discloses an artificial axis support body, applicable to the technical field of medical apparatus. The artificial axis support body comprises a supporting main body, wherein the supporting main body comprises a crown part and a body part; a top profiling face is formed on the top face of the crown part and a bottom profiling face is formed on the bottom face of the body part; a cavity is formed in the supporting main body; a porous grid bracket is arranged in the cavity; on the surface of the supporting main body, a plurality of windows are formed in the cavity; a lower fixing lug is arranged at the bottom end of the body part and upper fixing lugs are arranged at the top end of the crown part; both the upper fixing lugs and the lower fixing lug are provided with fixing holes; the supporting main body can be in fastening connection to an atlas by virtue of screws; and the supporting main body can be in fastening connection to a third cervical vertebra by virtue of screws. The supporting main body, by virtue of the upper and lower profiling faces, can form dissecting fit, and meanwhile, the upper fixing lugs are connected to the atlas and the lower fixing lug is connected to the third cervical vertebra, so that the artificial axis support body is good in supporting and reconstruction stability and capable of preventing a prosthesis from becoming loosen and failed after an operation, and the artificial axis support body is easily to fix, good in shape matching performance, low in fixation failure rate after the operation and high in fusion rate; therefore, the artificial axis support body can meet complex operation demands.

Description

technical field [0001] The invention is used in the technical field of medical instruments, and in particular relates to an artificial axis support body. Background technique [0002] Tuberculosis and tumors affecting the upper cervical spine often severely damage the important structures of the atlantoaxial spine, compress the spinal cord, and cause serious consequences of paralysis. Such patients need surgical resection of the lesion, reconstruction and fixation of the damaged structure, in order to maintain the structural integrity and stability of the craniocervical junction and maintain normal physiological functions. [0003] Because the atlantoaxial spine is located in the craniocervical junction, its anatomical structure is special, its location is deep, and there are important nerve centers and blood vessels around it, so its resection and reconstruction operations are difficult points in spine surgery. mainly reflects in: Surgical exposure is more difficult. To...

AI Technical Summary

Problems solved by technology

Ordinary titanium mesh has a consistent cylindrical shape up and down, and cannot meet the reconstruction needs of the complex anatomical shape of the atlantoaxial spine

Although some scholars at home and abroad have improved implants such as titanium mesh and applied them to reconstruction after atlantoaxial resection, but the improved implants still have difficulties in fixation and poor shape matching when applied to this site. High fixation failure rate, low fusion rate and other defects, it is difficult to truly meet the needs of complex operations

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