Compositions and methods for treating intervertebral discs with collagen-based materials
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United States of America Patent
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Jun 29, 2010
Grant Date -
Jun 2, 2005
app pub date -
Jan 6, 2005
filing date -
Sep 18, 2002
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Abstract
A method of augmenting an intervertebral disc nucleus by injecting or otherwise adding to a disc nucleus a plurality of particles of natural, collagen-rich tissue. The mean particle size of the pieces of natural, collagen-rich tissue may be between 0.25 mm and 1.0 mm. The particles may be dehydrated before implantation, and rehydrated after implantation, or they may be implanted in a “wet” state—such as a slurry or gel. Radiocontrast materials may be included to enhance imaging of the injected material. Other additives may include analgesics, antibiotics, proteoglycans, growth factors, stem cells, and/or other cells effective to promote healing and/or proper disc function.
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