Title:
DEVICE FOR TREATING BACK PAIN BY RE-ESTABLISHING THE EXCHANGE OF NUTRIENT AND WASTE
Document Type and Number:
WIPO Patent Application WO2004101015
Kind Code:
A3
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 reestablish 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 immunosuppressive drugs.
Inventors:
YEUNG JEFFREY E (US)
YEUNG TERESA T (US)
YEUNG TERESA T (US)
Application Number:
PCT/US2004/014368
Publication Date:
February 24, 2005
Filing Date:
May 07, 2004
Export Citation:
Assignee:
YEUNG JEFFREY E (US)
YEUNG TERESA T (US)
YEUNG TERESA T (US)
International Classes:
A61B17/00; A61L27/38; A61F2/44; (IPC1-7): A61B17/88
Domestic Patent References:
| WO2002017825A2 | 2002-03-07 |
Foreign References:
| FR2586183A1 | 1987-02-20 | |||
| DE4440346A1 | 1996-05-15 | |||
| US20010053914A1 | 2001-12-20 |
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