Novel cervical vertebra interbody fusion cage in conformity to anatomic characteristics of countrymen

Abstract

The invention provides a novel cervical vertebra interbody fusion cage in conformity to anatomic characteristics of countrymen. The novel cervical vertebra interbody fusion cage comprises a column (1), and upper and lower end faces of the column (1) are end plate contact faces (2). Each end plate contact face (2) is an up-and-down end face mainly composed of a plurality of raised end plate contact faces (21) and a plurality of recessed end plate contact faces (22). The novel cervical vertebra interbody fusion cage has the advantages that the end plate contact faces are matched with upper and lower end plates in shape, so that high stability of an intervention segment can be achieved; positive stress influences on adjacent nodes are achieved, so that the problems, such as stress shielding and regression acceleration of adjacent segments, caused by an anterior cervical plate of the cervical vertebra can be avoided or reduced; the biomimetic design philosophy is adopted, so that related complications can be reduced, and the novel cervical vertebra interbody fusion cage is of obvious promotion significance in improving operative treatment effects of cervical spondylosis of the countrymen.

Description

technical field [0001] The invention relates to an intervertebral fusion device, in particular to a novel cervical intervertebral fusion device conforming to the anatomical characteristics of Chinese people and a manufacturing method thereof. Background technique [0002] Cervical intervertebral fusion cages have the advantages of immediate postoperative stabilization, opening the intervertebral space height, promoting fusion, restoring and maintaining the physiological lordosis of the cervical spine, etc., and are widely used. However, there are deficiencies in the existing technology: the shape of the contact surface of the fusion cage end plate is simple, usually a rough surface with tooth-like protruding lines, this structure is not conducive to the immediate stability of the intervention segment of the fusion cage, and the fusion cage Point contact with the endplate does not have a good stress effect. Contents of the invention [0003] Aiming at the defects in the pr...

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Problems solved by technology

However, there are deficiencies in the existing technology: the shape of the contact surface of the fusion cage end plate is simple, usually a rough surface with tooth-like protruding lines, this structure is not conducive to the immediate stability of the intervention segment of the fusion cage, and the fusion cage Point contact with endplate does not have good stress effects

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