Title:
FINE NEEDLE PART, INJECTION DEVICE, AND PUNCTURE INJECTION SET
Document Type and Number:
WIPO Patent Application WO/2023/190584
Kind Code:
A1
Abstract:
Provided is a fine needle part 1 for attachment to a skin puncture instrument, the fine needle part comprising a plate-like plate substrate, a plurality of base portions 113 protruding from an object-facing surface of the plate substrate, and a plurality of needle portions 114 respectively protruding from the top surfaces of the plurality of base portions 113. Each of the plurality of needle portions 114 has a height (b) of 5 μm ≤ b < 700 μm. Each of the plurality of base portions 113 has a height (a) of 200 μm ≤ a < 3000 μm. The total height (a + b) of the height (b) of each needle portion and the height (a) of a corresponding base portion is 600 μm to 3200 μm. The plurality of base portions 113 and the plurality of needle portions 114 are formed of an insoluble resin material. The needle portions 114 puncture the object, thereby applying a liquid onto or into the surface of the object.
More Like This:
| WO/2015/009950 | MICROFLUIDIC DELIVERY DEVICE |
| WO/2022/140984 | COSMETIC HANDLE |
Inventors:
SHIMIZU HIROKO (JP)
OBANA TAKAKAZU (JP)
YOSHIMURA MIKA (JP)
OGAI NORIYUKI (JP)
TODA YASUHIRO (JP)
OBANA TAKAKAZU (JP)
YOSHIMURA MIKA (JP)
OGAI NORIYUKI (JP)
TODA YASUHIRO (JP)
Application Number:
PCT/JP2023/012648
Publication Date:
October 05, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
SHISEIDO CO LTD (JP)
ASTI CORP (JP)
ASTI CORP (JP)
International Classes:
A61M37/00
Foreign References:
| JP2017038781A | 2017-02-23 | |||
| JP2020171407A | 2020-10-22 | |||
| JP2010184102A | 2010-08-26 | |||
| KR102297883B1 | 2021-09-03 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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