Method for making a bioerodible material for the sustained release of a medicament and the material made from the method
US5456917A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1994 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Jan 12, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1647
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for making an implantable bioerodible material for the sustained release of a medicament and the material made from the method. The method comprises the formulation of a biomaterial polymeric carrier into particles of predetermined density and size. The particles are then are mixed with the desired medicament and extruded into the desired shape for implantation or reground to a predetermined size distribution for injection as a suspension. In an alternative embodiment, the particles of polymeric carrier are immersed in a solvent containing a medicament, and the pores of the particles are filled with medicament through alternate application and release of vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.