Title:
METHOD FOR MANUFACTURE OF MICRONEEDLE AND MICRONEEDLE
Document Type and Number:
WIPO Patent Application WO/2019/059265
Kind Code:
A1
Abstract:
[Problem] To enable filling of a hollow microneedle with a fill liquid through a simple method and easy manufacturing of a microneedle having a hollow needle filled with a fill liquid. [Solution] According to this method for microneedle manufacture, multiple tapered-cone needles 3 are formed on a sheetlike microneedle 1, a through-hole 4 is formed at either the apex 3A or the vicinity of the apex 3A of each tapered-cone needle and penetrates to the reverse face 2B of the sheet, the ends of the through-holes on the sheetlike microneedle 1 are brought into contact with a fill liquid 9, and the through-holes are filled with the fill liquid through capillary action.
Inventors:
MIYAJI KUNIO (JP)
OIKAWA YOICHI (JP)
TOYODA KOHEI (JP)
OIKAWA YOICHI (JP)
TOYODA KOHEI (JP)
Application Number:
PCT/JP2018/034766
Publication Date:
March 28, 2019
Filing Date:
September 20, 2018
Export Citation:
Assignee:
THINK LANDS CO LTD (JP)
International Classes:
A61M37/00
Domestic Patent References:
| WO2016147476A1 | 2016-09-22 | |||
| WO2015190098A1 | 2015-12-17 |
Foreign References:
| JP2004504120A | 2004-02-12 | |||
| US20080058726A1 | 2008-03-06 | |||
| JP2001149485A | 2001-06-05 | |||
| US2522309A | 1950-09-12 |
Attorney, Agent or Firm:
YOSHIDA Misako (JP)
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