Flexible artificial intervertebral disc

An intervertebral disc and artificial technology, applied in the field of medical devices, can solve the problem of difficulty in controlling the motion range of the artificial intervertebral disc, and achieve the effects of satisfying the needs of physiological activities, controlling the motion range, and preventing re-stenosis.
CN110368148APending Publication Date: 2019-10-25BEIJING AKEC MEDICAL
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Patent Information

Authority / Receiving Office
CN ¡ China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING AKEC MEDICAL
Publication Date
2019-10-25

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Abstract

The invention provides a flexible artificial intervertebral disc. The flexible artificial intervertebral disc comprises a first bone trabecula layer, a second bone trabecula layer, a flexible part anda supporting part, wherein the first bone trabecula layer and the second bone trabecula layer are arranged at an interval, one side of the flexible part is connected with the first bone trabecula layer, the other side of the flexible part is connected with the second bone trabecula layer, the flexible part is made of a polymer material, and an accommodating cavity is formed in the flexible part;the supporting part is arranged in the accommodating cavity of the flexible part, and the hardness of the supporting part is greater than that of the flexible part. Since the flexible part is made ofthe polymer material and supported by the relatively hard supporting part, elastic deformation at different positions is facilitated, the physiological activity requirement of a patient can be met, and the movement amplitude can be controlled conveniently. Moreover, due to the arrangement of the supporting part, the intervertebral space restenosis caused by height loss can be prevented, and the artificial intervertebral disc can be reliably used for a long time.
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Description

technical field

[0001] The invention relates to the technical field of medical devices, in particular to a flexible artificial intervertebral disc. Background technique

[0002] Artificial disc replacement (total disc replacement TDR) is a new method for the treatment of intervertebral disc degenerative diseases in recent years, and its clinical application began in the 1980s. It not only resects the diseased intervertebral disc, but also restores the stability and activity function of the segment at the same time, theoretically avoiding the accelerated degeneration of adjacent segments caused by spinal fusion.

[0003] Artificial disc replacement is mainly used to treat degenerative disc diseases such as discogenic low back pain. Among them, cervical spondylosis is a common disease that causes corresponding symptoms and signs due to degenerative changes of cervical intervertebral discs and secondary intervertebral joint changes that stimulate or compress adjacent tissues. ...

Claims

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