Implants for administering substances and methods of producing implants
US7763277B1 · kind B1 · utility
67Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A porous silicon implant (42; 60) impregnated with a beneficial substance, such as a micromineral required for healthy physiology, is implanted subcutaneously and is entirely corroded away over the following months/year to release the micromineral in a controlled manner. In a second embodiment the implant (62) may have a large number of holes (72) which contain beneficial substance and which are closed by bio-errodable doors (76, 78) of different thickness so as to stagger the release of the beneficial substance over time as the doors are breached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.