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Integral bionic cervical disc prosthesis

A cervical intervertebral disc, bionic technology, applied in the direction of spinal implants, etc., to avoid damage, simplify the operation of the operation, eliminate the effects of material damage and wear debris

Active Publication Date: 2016-06-29
无锡宝通投资有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems of the existing artificial cervical intervertebral disc, the present invention provides a more bionic one-piece artificial cervical intervertebral disc prosthesis

Method used

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  • Integral bionic cervical disc prosthesis
  • Integral bionic cervical disc prosthesis
  • Integral bionic cervical disc prosthesis

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] figure 1 It is a schematic diagram of the integrated in-situ molding of the artificial cervical intervertebral disc in the present invention. During the molding process, first place the upper rigid endplate and the lower rigid endplate in the closed mold, then close the mold, inject the elastomer or elastomer precursor with good fluidity into the mold cavity from the gate a, and fill the upper and lower rigid endplates. In the cavity gap between the lower rigid endplates, it will be cured in situ at a certain temperature to form a one-piece structure that fits and covers each other with the upper and lower rigid endplates, and then the elastomeric outer film material is fixed to the artificial neck In the intervertebral disc, the final artificial cervical intervertebral disc product is obtained. figure 2 It is the appearance structure diagram of one of the preferred embodiments, figure 2 Among them, structure 1 is the upper rigid endplate, structure 2 is the lower r...

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Abstract

The invention relates to an integral bionic cervical disc prosthesis, and belongs to the field of medicalimplant materials. The cervical disc prosthesis consists of an upper rigid terminal plate, a lower rigid terminal plate, an elastic body nucleus pulposus material and an outer layer protection film material, wherein the elastic body nucleus pulposus material is used for connecting the upper and lower rigid terminal plates; the elastic body material and the upper and lower rigid terminal plates are integrally formed in situ; through the structure arrangement of rigid terminal plate cavities, grooves, bulges and the like, the firm combination of the nucleus pulposus material and the rigid terminal plates is realized; a mutually embedding and covering integral structure is formed; and potential danger of material damage and abrasive dust caused by interface friction of the rigid terminal plates and the nucleus pulposus material is effectively reduced or eliminated. The surfaces, in contact with the bone of the human body, of upper and lower rigid terminal plates adopt the arc-shaped design; titanium or hydroxylapatite coatings cover the surfaces; spurs or sawtooth-shaped fixed teeth are distributed on the surface; and the immediate post-surgical stability and the bone integration are improved. The cervical disc prosthesis can realize the rotating, bending-stretching and transverse moving three-dimensional six-freedom-degree space movement; and the normal intervertebral disc moving functions in the human body can be met.

Description

technical field [0001] The invention relates to a novel artificial cervical intervertebral disc prosthesis, which is used for replacing degenerated intervertebral discs between adjacent vertebrae of the spine, and belongs to the field of medical implantable orthopedic medical devices. Background technique [0002] Cervical spondylosis is a common and frequently-occurring disease. With the acceleration of the pace of modern life and changes in lifestyle (such as walking by car and sedentary), the incidence of cervical disc disease worldwide is increasing year by year. The treatment of cervical intervertebral disc disease includes conservative treatment and surgical treatment. For severe and rapidly developing intervertebral disc disease, surgical treatment is currently the best treatment. The existing treatment methods include allograft intervertebral disc transplantation, nucleus pulposus replacement, fusion decompression and bone graft fusion, and artificial cervical disc r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/442
Inventor 张立群孟阳冯巧芳姜秀娟杨海波伍社毛
Owner 无锡宝通投资有限公司
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