Solvent-cast microprotrusion arrays containing active ingredient
US9452280B2 · kind B2 · utility
11Cited by
235References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Oct 12, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In an aspect of the invention, an array of microprotrusions is formed by providing a mold with cavities corresponding to the negative of the microprotrusions, casting atop the mold a first solution comprising a biocompatible material and a solvent, removing the solvent, casting a second solution atop the first cast solution, removing the solvent from the second solution, and demolding the resulting array from the mold. The first solution preferably contains an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.