Transdermal delivery system with adhesive overlay and peel seal disc
US5662925A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/7084
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A device for administering an active agent to the skin or mucosa of an individual comprising a laminated composite of an adhesive overlay, a backing layer underlying the central portion of the adhesive overlay, an active agent-permeable membrane, the backing layer and membrane defining a reservoir that contains a formulation of the active agent, a peel seal disc underlying the active agent-permeable membrane, a heat seal about the periphery of the peel seal disc, the active agent-permeable membrane and the backing layer and a removable release liner underlying the exposed overlay and peel seal disc. The adhesive layer is above and peripheral to the path of the active agent to the skin or mucosa and is protected from degradation by the components of the reservoir by a multiplicity of heat seals. The peel seal disc protects against release of the active agent-containing reservoir and the release liner protects the adhesive from exposure to the environment prior to use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.