Integrated performance bionic elastic artificial intervertebral disc and integrated forming preparation process thereof

An integrated, intervertebral disc technology, applied in the field of artificial intervertebral discs, can solve the problems such as the mechanical properties of artificial intervertebral disc grinding debris are not close, and achieve the effect of reducing the risk of friction and grinding debris, reducing hidden dangers and risks, and realizing the effect of fixed assembly.

CN112451178APending Publication Date: 2021-03-09北京市创伤骨科研究所 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-03-09

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Abstract

The invention discloses an integrated performance bionic elastic artificial intervertebral disc and an integrated forming preparation process thereof. The integrated performance bionic elastic artificial intervertebral disc is of an integrated structure formed by assembling an upper end plate, a lower end plate and a nucleus pulposus fixed between the upper end plate and the lower end plate. The nucleus pulposus is prepared by sequentially carrying out injection molding on three or more modulus gradient elastomer materials, the different modulus gradient materials are tightly connected, and the modulus of the modulus gradient elastomer materials is sequentially reduced from the center to the periphery. The integrated performance bionic elastic artificial intervertebral disc can effectivelysolve the technical problem that an existing artificial intervertebral disc has the risk of friction chippings, and the technical problem that in the prior art, the mechanical property of the artificial intervertebral disc is not close to that of a normal intervertebral disc of a human body.
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Description

technical field

[0001] The invention belongs to the technical field of artificial intervertebral discs, and relates to an elastic artificial intervertebral disc with integrated bionic performance and an integrated molding preparation process thereof. Background technique

[0002] Artificial disc replacement is a new technology for the treatment of cervical spondylosis. It has become a research hotspot and has achieved good clinical results. At present, the structure of the existing artificial intervertebral disc basically adopts the "ball-and-socket" frictional hard support design, and its mechanical properties are quite different from those of normal cervical intervertebral discs. It causes increased stress on the surrounding small joints and ligaments; the product has the risk of friction debris during long-term use, and cannot effectively absorb external force shocks. The normal human intervertebral disc is an elastic structure composed of gelatinous substance, fibrous a...

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...