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Assembled prosthesis such as a disc

A disc-shaped, on-site assembly technology, applied in prosthesis, spinal implants, medical science, etc., can solve the problems of complications such as large insertion holes, and achieve the effect of simplifying operation, facilitating recovery, and reducing damage

Inactive Publication Date: 2008-01-02
DISC O TECH MEDICAL TECHOLOGIE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are artificial whole disc systems that claim to be on the market or are in various stages of development and clinical trials - such as Charite artificial disc from DePuy Spine Group Ltd; Prodisc from SpineSolutions / Synthes; Maveric from Medtronic Sofamor Danek; and SpineCore's FlexiCore - All of these prostheses are implanted with relatively invasive surgical techniques, usually with an open anterior approach, which requires a large insertion opening and can lead to risks and complications

Method used

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  • Assembled prosthesis such as a disc
  • Assembled prosthesis such as a disc
  • Assembled prosthesis such as a disc

Examples

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Embodiment Construction

[0077] According to some exemplary embodiments of the present invention, FIG. 1 shows a disc prosthesis 100 comprising a lower plate 101 and a superior plate 102 . The two plates 101, 102 have the same perimeter / contour, although in some embodiments of the invention the two plates 101, 102 respectively may be provided with different sizes and / or shapes. Each plate 101, 102 consists of six laminae 104-114, 115-124, respectively. Other numbers of laminae may be provided, and in general, the number of plate laminations and their cross-sections may depend on the disc size and / or disc position. Plates 101, 102 may be connected to their adjacent spinal endplates (not shown in FIG. The endplates of the vertebrae protrude and protrude into them after the prosthesis has been inserted eg to prevent displacement of the prosthesis.

[0078] Figure 2 shows the lower plate 101 of the disc prosthesis 100 according to some exemplary embodiments of the present invention. About its center, t...

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Abstract

An artificial disc device, comprising a plurality of interconnected elements, adapted to be assembled in situ.

Description

[0001] related application [0002] This application claims the benefit under 119(e) of US Provisional Application 60 / 627,141, filed November 15, 2004, entitled "Minimally Invasive Artificial Disc Apparatus and Method," the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to a prosthetic device, such as a device for use in a minimally invasive procedure to replace a damaged intervertebral disc. Background technique [0004] The vertebral bodies of the spine are connected to each other by discs. The intervertebral discs provide flexibility and mobility to the spine. Each intervertebral disc includes a nucleus pulposus ("nucleus") surrounded by an annulus fibrosus ("annulus"). The former connect adjacent vertebrae together and consist of multiple overlapping concentric layers of collagenous fibrous rings. Each layer includes fibers arranged in left and right diagonal orientations. This unique configuration con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61B17/56
CPCA61F2002/30092A61F2002/30462A61F2002/30604A61F2230/0069A61F2220/0025A61F2002/305A61F2002/443A61F2002/4627A61F2002/4629A61F2002/30448A61F2/4425A61F2002/30904A61F2002/30062A61F2002/30563A61F2002/30919A61F2/4611A61F2002/30224A61F2002/30574A61F2210/0014A61F2002/30884A61F2002/30738A61F2220/0075A61F2002/30387A61F2220/005A61F2210/0004A61F2002/4635A61F2002/30616A61F2002/30565A61F2002/30579
Inventor M·贝雅O·格洛伯曼
Owner DISC O TECH MEDICAL TECHOLOGIE