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Gradient modulus elastic artificial intervertebral disc and preparation method thereof

A gradient mold, intervertebral disc technology, applied in the field of artificial intervertebral disc, can solve the problems of inaccessibility and mechanical properties of artificial intervertebral disc grinding debris, so as to prevent nucleus pulposus prolapse, solve the risk of grinding debris, and prevent the leakage of grinding debris. Effect

Pending Publication Date: 2021-03-19
北京市创伤骨科研究所 +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an elastic artificial intervertebral disc with gradient modulus and its preparation method, which can solve the problem of artificial intervertebral discs having the risk of grinding debris and not being close to the mechanical properties of normal intervertebral discs of the human body. technical challenge

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  • Gradient modulus elastic artificial intervertebral disc and preparation method thereof
  • Gradient modulus elastic artificial intervertebral disc and preparation method thereof
  • Gradient modulus elastic artificial intervertebral disc and preparation method thereof

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Embodiment Construction

[0037] 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.

[0038] 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 ...

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PUM

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Abstract

The invention discloses a gradient modulus elastic artificial intervertebral disc and a preparation method thereof. The gradient modulus elastic artificial intervertebral disc comprises an upper end plate, a lower end plate and a modulus gradient nucleus pulposus fixedly arranged between the upper end plate and the lower end plate, wherein the periphery of the modulus gradient nucleus pulposus iscoated with a coating, the modulus gradient nucleus pulposus is of an annular elastomer structure made of at least three elastomer materials, and moduli of the elastomer materials for making the modulus gradient nucleus pulposus are sequentially reduced from the center to the periphery. According to the artificial intervertebral disc, technical problems that an existing artificial intervertebral disc has the risk of grinding chippings, and the mechanical property of an artificial intervertebral disc in the prior art is not close to that of a normal intervertebral disc of a human body can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of artificial intervertebral discs, and relates to an elastic artificial intervertebral disc with gradient modulus and a preparation method thereof. Background technique [0002] Spinal degeneration caused by disc herniation or herniation is a common disease. It is reported that the number of patients with cervical and lumbar diseases in my country has reached nearly 200 million, and the age of patients is showing a trend of younger age. For more serious intervertebral disc diseases, when conservative treatment fails, surgical treatment can only be performed. In recent years, a new type of spinal surgery treatment has emerged clinically, that is, replacing the diseased intervertebral disc with a movable artificial intervertebral disc, which can restore and maintain the mobility and stability of the operative segment of the spine. [0003] Many artificial intervertebral disc structures are disclosed in the p...

Claims

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Application Information

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IPC IPC(8): A61F2/44A61F2/30
CPCA61F2/442A61F2/30A61F2002/443A61F2002/4445A61F2002/30985
Inventor 石锐韩骁田伟
Owner 北京市创伤骨科研究所
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