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Artificial intervertebral disc prosthesis

An intervertebral disc and artificial technology, applied in prosthetics, medical science, spinal implants, etc., can solve problems such as easy dislocation

Pending Publication Date: 2018-11-20
BEIJING AKEC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide an artificial intervertebral disc frame to solve the problem of easy dislocation of the artificial intervertebral disc prosthesis in the prior art

Method used

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0033] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish simila...

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Abstract

The invention provides an artificial intervertebral disc prosthesis. The artificial intervertebral disc prosthesis comprises an upper end plate, a lower end plate, a nucleus pulposus, and an elastic connection device, wherein a positioning part is arranged at the bottom of the upper end plate; a limiting part is arranged at the top of the lower end plate; the bottom of the nucleus pulposus is limited on the lower end plate through the limiting part, and the top of the nucleus pulposus is located in the positioning part; and the bottom of the elastic connection device is connected onto the lower end plate, and the top end of the elastic connection device is connected onto the upper end plate. The artificial intervertebral disc prosthesis provided by the invention has the advantages that thetop of the elastic connection device is connected onto the upper end plate, and the bottom of the elastic connection device is connected onto the lower end plate, so that the artificial intervertebral disc prosthesis achieves an anti-dislocation function through connection of the elastic connection device.

Description

technical field [0001] The invention relates to the technical field of medical prostheses, in particular to an artificial intervertebral disc frame. Background technique [0002] At present, the intervertebral disc prosthesis on the market is mainly composed of three parts: the upper endplate, the nucleus pulposus, and the lower endplate. Most of the products on the market are an upper endplate with a ball socket, a spherical nucleus pulposus, and a lower endplate that restricts the movement of the nucleus pulposus. [0003] The above-mentioned intervertebral disc frame also has the following defects: while pursuing high mobility, due to factors such as the design of the intervertebral disc prosthesis or excessive exercise of the patient, the rate of artificial intervertebral disc dislocation is relatively high. [0004] Moreover, the current intervertebral disc prosthesis is rigid in design, and it is difficult to meet the elastic demand of the normal intervertebral disc o...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/442A61F2002/443A61F2250/0004
Inventor 刘敏
Owner BEIJING AKEC MEDICAL
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