Adjustable cervical interbody fusion cage

Abstract

The invention discloses an adjustable cervical interbody fusion cage. The adjustable cervical interbody fusion cage comprises fusion plates, the centers of the elliptical fusion plates are provided with first through holes, one ends of the short axes of the fusion plates are fixedly connected with the root parts of connection plates, and the head parts of the connection plates are perpendicular tothe fusion plates and provided with second through holes; a tubular titanium net and adjusting rods are disposed between the two fusion plates, the two ends of the titanium net are fixedly connectedwith the edges of the two first through holes respectively, the two adjusting rods are located at the two ends of the short axes of the fusion plates, the two ends of each adjusting rod are fixedly connected with the bottom faces of the two fusion plates respectively, and the adjusting rods are parallel to the central axis of the titanium net; the titanium net comprises multiple titanium springs which are coaxially nested; each adjusting rod comprises two support rods and an adjusting sleeve, wherein the head parts of the two support rods are in threaded connection with the adjusting sleeve separately; the cross section of the tail part of each support rod is rectangular, and the length direction of each rectangle is parallel to the long axis of the corresponding fusion plate. The height and angle of the cervical interbody fusion cage can be freely adjusted for application to prevent a steel nail from being nailed into a deep part of the body, the bone fusion is effectively promoted, and sinking of the fusion cage is prevented.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an adjustable cervical intervertebral fusion device. Background technique [0002] Subtotal cervical spondylectomy was applied clinically in the 1960s. Since the advent of titanium mesh, more emphasis has been placed on vertebral body fusion. In the prior art, there is a publication number of CN105411727A, which is called anterior cervical adjustable interface zero-notch support. The invention of the fusion and fixation titanium mesh system discloses a medical device including fusion parts, support parts and other components, which is used for vertebral body fusion in subtotal cervical spondylectomy, although this device reduces the problem of frame sinking and other problems , but its angle adjustment range is small and its height adjustment ability is weak. Contents of the invention [0003] The purpose of the present invention is to provide an adjustable cervical interver...

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Problems solved by technology

[0002] Subtotal cervical spondylectomy was applied clinically in the 1960s. Since the advent of titanium mesh, more emphasis has been placed on vertebral body fusion. In the prior art, there is a publication number of CN105411727A, which is called anterior cervical adjustable interface zero-notch support. The invention of the fusion and fixation titanium mesh system discloses a medical device including fusion parts, support parts and other components, which is used for vertebral body fusion in subtotal cervical spondylectomy, although this device reduces the problem of frame sinking and other problems , but its angle adjustment range is small and its height adjustment ability is weak

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