Title:
MICRONEEDLE STRUCTURE PRODUCITON METHOD AND MICRONEEDLE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/211058
Kind Code:
A1
Abstract:
The method for producing microneedle structure according to the present invention is a method for producing a microneedle structure 10 provided with, on one surface side of a base material 11 having permeability to liquid in the thickness direction, needle-shaped parts 12 having holes 13, the method involving: a forming step for forming protrusions 5 using a composition 3 for forming a needle part, wherein the composition 3 contains a first water-insoluble material and a first water-soluble material; a bonding step for bonding the composition 3 or the protrusions 5 formed in the forming step to the base material 11; and a removing step for immersing the protrusions 5 and the base material 11 in water to dissolve the first water-soluble material and remove the same, and thereby forming the needle parts 12 and the holes 13 from the protrusions 5. Such a microneedle structure production method provides a microneedle structure provided with a base material and securing flow passages.
Inventors:
KOMA YOSUKE (JP)
Application Number:
PCT/JP2022/016675
Publication Date:
October 06, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
A61M37/00; A61B5/145; A61B5/151; A61B5/153
Domestic Patent References:
| WO2019044993A1 | 2019-03-07 | |||
| WO2019176126A1 | 2019-09-19 |
Foreign References:
| JP2017000724A | 2017-01-05 | |||
| US20100048744A1 | 2010-02-25 | |||
| KR20150085502A | 2015-07-23 |
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
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