Biodegradable microbicidal vaginal barrier device
US6596297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2002 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Mar 5, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/122
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An intravaginal bio-erodible microbicidal barrier device. The device comprises (a) at least one micronized compound selected from the group consisting of cellulose acetate phthalate and hydroxypropylmethylcellulose phthalate, and (b) at least one pectin, such as an apple pectin, and optionally at least one water soluble or water dispersible cellulose compound selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethylmethylcellulose, hydroxyethylethylcellulose and hydroxypropylethylcellulose. The device is prepared by a combination of foaming, freezing and freeze-drying processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.