Interbody fusion cage

An intervertebral fusion device and fusion device technology, applied in the field of intervertebral fusion devices, can solve problems such as low fusion rate, spinal instability, fusion device slippage, etc.

Pending Publication Date: 2021-04-30
朱腾月
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the research and development process, the inventors of the present application found that due to the use of fixed-size intervertebral fusion cages in clinical practice, problems such as fusion cage slippage, spinal instability, and low fusion rate are prone to occur.

Method used

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  • Interbody fusion cage
  • Interbody fusion cage
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Embodiment Construction

[0044] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly illustrate the spirit of the content disclosed in the application with the accompanying drawings and detailed descriptions. After any person skilled in the art understands the embodiments of the content of the application , when it can be changed and modified by the technology taught in the content of the application, it does not depart from the spirit and scope of the content of the application.

[0045] The exemplary embodiments and descriptions of the present application are used to explain the present application, but not to limit the present application. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.

[0046] The terms "first", "second", ... etc. used herein do not specifically refer to a sequence or order, nor are they...

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PUM

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Abstract

The invention provides an interbody fusion cage. The interbody fusion cage comprises a fusion cage body and a spiral jackscrew. The fusion cage body comprises a base part and an opening part; one end of the basic part and one end of the distraction part are integrally formed or fixedly connected in the length direction of the fusion cage body; a screw-in hole is formed in the other end of the base part; a cavity is formed in the strutting part along the central axis of the distraction part in the length direction, and the screw-in hole is communicated with the cavity; bone grafting windows are correspondingly formed in the upper end face and the lower end face of the fusion cage body in the height direction of the fusion cage body, and the bone grafting windows are communicated with the cavity; a distraction groove is formed in the side wall of the distraction part, and the distraction groove divides the distraction part into an upper distraction part and a lower distraction part from the end, opposite to the connecting end of the base part, of the distraction part; the spiral jackscrew is screwed into the cavity through the screw-in hole, one end of the spiral jackscrew is connected into the screw-in hole, and the other end of the spiral jackscrew is used for opening the distraction part. The size of the fusion cage can be changed, and the situations that the fusion cage slips, the spine is unstable and the like are avoided.

Description

technical field [0001] The application belongs to the technical field of medical devices, and in particular relates to an intervertebral fusion device. Background technique [0002] Intervertebral discs are located between adjacent vertebral bodies in the spine. Intervertebral discs help stabilize the spine and help distribute forces between the vertebrae. The intervertebral disc consists of an outer fibrous annulus surrounding the inner nucleus pulposus. The nucleus pulposus includes a colloidal material that absorbs stress on the intervertebral disc. The annulus fibrosus is a concentric layered structure of collagen fibers and fibrocartilage that resists torsional and bending forces. Intervertebral discs are prone to dislodgement or damage as they age due to trauma, disease, or other degenerative processes. [0003] Currently, intervertebral fusion is an effective treatment for degenerative diseases of the spine. When performing spinal fusion, the surgeon usually firs...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2/4465
Inventor 朱腾月
Owner 朱腾月
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