| 摘要 |
<p>This invention provides cell encapsulating devices capable of maintaining large numbers of viable cells. The devices are comprised of an inert, substantially cell-free core, a permeable membrane and a zone for maintaining cells. The permeable membrane surrounds the core such that the zone of cells is bounded by the core and the permeable membrane. The devices of the invention are suitable for implantation into an individual in need of treatment and are capable of supplying therapeutic substances to such individuals.</p> |
