Intervertebral Disc Puncture and Treatment System

a treatment system and intervertebral disc technology, applied in the field of intervertebral disc puncture and treatment system, can solve the problems of high toxins, retarding the flow of nutrients into the disc, and accumulating high levels of toxins
US20070282300A1Inactive Publication Date: 2007-12-06DEPUY SYNTHES PROD INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
DEPUY SYNTHES PROD INC
Publication Date
2007-12-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

A pre-assembled, telescoping needle system comprising an outer needle surrounding a finer gauge needle which, after percutaneous penetration by the outer needle, extends to penetrate the intervertebral disc into which the injectable is to be delivered.
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Description

BACKGROUND OF THE INVENTION

[0001] The natural intervertebral disc contains a jelly-like nucleus pulposus surrounded by a fibrous annulus fibrosus. Under an axial load, the nucleus pulposus compresses and radially transfers that load to the annulus fibrosus. The laminated nature of the annulus fibrosus provides it with a high tensile strength and so allows it to expand radially in response to this transferred load.

[0002] In a healthy intervertebral disc, cells within the nucleus pulposus produce an extracellular matrix (ECM) containing a high percentage of proteoglycans. These proteoglycans contain sulfated functional groups that retain water, thereby providing the nucleus pulposus with its cushioning qualities. These nucleus pulposus cells may also secrete small amounts of cytokines as well as matrix metalloproteinases (“MMPs”). These cytokines and MMPs help regulate the metabolism of the nucleus pulposus cells.

[0003] In some instances of disc degeneration disease (DDD), gradual degene...

Claims

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