Filamentary means for introducing agents into tissue of a living host
US6884427B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2000 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Feb 8, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a filamentary structure for the introduction of agents into a living host, comprising a filament comprising a solid core and a porous sheath which coats at least a portion of the solid core. When the filamentary structure is to be permanently implanted into a living host, both the solid core and the porous sheath are bioabsorbable. When the filamentary structure is to be temporarily implanted into the skin of a living host to deliver agents, such as cells, therein, the porous sheath is preferably bioabsorbable but the core need only be biocompatable, not bioabsorabable. The devices and methods of the present invention enable one to regenerate hair follicles, to introduce genetically altered cells or encapsulated cells to a living host transdermally, to regenerate bones, and to deliver drugs transdermally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.