Artificial cartilage tissue and production method thereof
US7923244B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jan 30, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Mar 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2501/15
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To obtain an artificial cartilage tissue having high strength and biocompatibility. There is provided an artificial cartilage tissue which is substantially free of heterologous protein and is substantially free of scaffold derived from non-cartilage-derived cells, but contains mammalian cartilage-derived cells and an extracellular matrix formed by the cartilage-derived cells, where: (1) the water retention per mg of tissue dry weight is 17.8 mg or less; (2) collagen of 5.57 μg or more per mg of tissue wet weight is contained; (3) proteoglycan of 9.22 μg or more per mg of tissue wet weight is contained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.