Back pain relief and immuno protection of donor cells
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United States of America Patent
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Sep 24, 2013
Grant Date -
May 5, 2011
app pub date -
Jan 11, 2011
filing date -
May 7, 2003
priority date (Note) -
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Abstract
The intervertebral disc is avascular. With aging, endplates become occluded by calcified layers, and diffusion of nutrients and oxygen into the disc diminishes. The disc degenerates, and pain ensues. Conduits are delivered and deployed into the intervertebral disc to re-establish the exchange of nutrients and waste between the disc and bodily circulation to stop or reverse disc degeneration and relieve pain. The intervertebral disc installed with semi-permeable conduits may be used as an immuno-isolated capsule to encapsulate donor cells capable of biosynthesizing therapeutic molecules. The semi-permeable conduits establish the exchange of nutrients and therapeutic molecules between disc and bodily circulation to treat a disease without using immuno-suppressive drugs.
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