Article with hollow microneedles and method of making
US10105524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | May 12, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present application provides articles (10) having a polymeric substrate (12) with a plurality of solid and/or hollow microneedles (20) extending therefrom. Each solid microneedle is formed by a molding process and the microneedle has body with first (30) and second cavities (40) extending therein. The hollow microneedles are formed by removing a portion of the polymeric material disposed between the first cavity and the second cavity. A method for determining the location of a microneedle in an article comprising solid microneedles is also provided. The method comprises directing electromagnetic radiation toward an article comprising a plurality of microneedles and imaging the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.