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US 10,702,631 B2Granted
Core-centered hydroxyapatite granule composed of micro-structure body
AssigneeThe Trustees of Columbia University in the City of New York
InventorDaniel S. Oh
Life of this patent
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Abstract
A granule form e d from a tubular body having an outer surface and an inner surface separated by a matrix, and at least one core defining an opening extending through the tubular body. The outer surface of the matrix is adapted to permit fluid flow into and out of the matrix.
Claims7
A process for fabricating hollow tubular granules, the process comprising:
- mixing hydroxyapatite (HA) powder and water into a slurry, applying the slurry to a filament to form hollow HA filaments, subjecting the HA filaments to freezing, and heating the filaments.
Dependencies are inferred from the claim text.