Method for manufacturing transdermal-absorption sheet
US10045936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/0421
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method is provided which enables a drug to be concentrated at needle-like protruding portions and which further allows transdermal-absorption sheets to be manufactured at high production efficiency. The method repeats a step of feeding a drug-containing solution from a liquid feeding apparatus to a mold and filling needle-like recessed portions with the drug-containing solution through a nozzle aligned over the needle-like recessed portions in a state where the nozzle and a front surface of the mold are brought into contact with each other, and a step of moving the liquid feeding apparatus relative to the mold in a state where the nozzle and the front surface of the mold are brought into contact with each other. Thus, the two-dimensionally arranged needle-like recessed portions are filled with the drug-containing solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.