Preparation for body surface application and preparation for body surface application-holding sheet
US8491534B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
It is an objective to provide a microneedle and a microneedle array formed from a self-dissolving base which can realize higher absorption efficiency and a higher pharmacological availability. A preparation 1 for body surface application has two sections divided in the insertion direction, namely, an acral portion 5 and a rear end portion 6. The acral portion 5 is a section including a body surface insertion end 2, and holds a target substance soluble in base. The rear end portion 6 is a section including a pressing end 3, and is formed mainly only from the base. The rear end portion 6 does not hold the target substance. When the preparation 1 for body surface application is inserted into a body surface such as the skin, since the target substance is contained in the acral portion 5, even if part of the rear end side thereof is subsequently not fully inserted into the body surface, high absorption efficiency and high pharmacological effect can be realized where the actual dose of the target substance is not below the desired amount of the drug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.