Vertebral cage device with modular fixation

A technology of fixing device and holding device, applied in the direction of fixator, internal fixator, surgical fixation nail, etc., can solve the problems of patient discomfort, reduced utility, loosening of bone anchoring screws, etc.
CN101647735AInactive Publication Date: 2010-02-17LDR MEDICAL SAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LDR MEDICAL SAS
Publication Date
2010-02-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention concerns a modular arthrodesis device, used to enable fusing of two contiguous vertebrae by development of bony tissues with replacement of fibrocartilaginous discs ensuring the bonding between the vertebrae of the vertebral column or the end of the latter, and including interchangeable types of fixation means. Intervertebral arthrodesis device designed to be inserted in an intervertebral space (E) separating the opposite plates (V0) of two adjacent vertebrae (V), characterised in that it comprises at least one structure called intervertebral cage (1) presenting the shape of a ring that mayor may not be open, in which at least one part, along the axis of the spine, has a lower height that the rest of this same cage and forms a small bar (12) crossed by at least one drilling (121, 122) of the axis approximately perpendicular to the plate (V0) of at least one of the adjacent vertebrae (V).
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Description

[0001] This patent application is a divisional application of another patent application, and the national application number of the other patent application (parent application) is: 02814069.9; the international filing date is: July 12, 2002; the title of the invention is: "has Modular Fixed Spinal Frame Device". technical field

[0002] The present invention relates to an arthrodesis device for the fusion of two adjacent vertebral bodies by replacing the fibrocartilaginous disc with growth of bone tissue, ensuring the union between the vertebral bodies of the spine or the ends of the latter. Background technique

[0003] The intervertebral disc is formed from a deformable but incompressible portion called the "nucleus" which contains about 80% water and is surrounded by layers of elastic fibers that bind together to Holds the nucleus, absorbs some of the force applied to the disc unit and keeps the joint stable. These parts may often degenerate due to crushing, dislocatio...

Claims

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