Microcell delivery systems including charged or magnetic particles for regulating rate of administration of actives
US10646454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Mar 23, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M37/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The active delivery system includes a plurality of microcells, wherein the microcells are filled with a medium including an active ingredient and charged or magnetic particles. The microcells include an opening, and the opening is spanned by a porous diffusion layer. Because the porous diffusion layer can be blocked with the charged or magnetic particles, the rate at which the active ingredient is dispensed can be controlled with an electric or magnetic field, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.