Multi-microneedle device use fluid infusion-instruments operation instrument

Japanese Patent JP6222091

B2

Provided is an operational instrument by which a desired amount of a fluid can be readily and reliably injected into skin tissue in a brief period of time in instances of intradermal injection with a fluid injector using a multi-microneedle device. This operational instrument (14) is provided with: an outer cylinder (16) which extends between one end opening (16a) and another end opening (16b) and has a housing space (16c) for retaining an injector (12) so as to enable movement along the longitudinal axis thereof; and a mechanism (18) for sequentially moving the injector within the accommodation space between an initial position where a plurality of microneedles (10c) of a main body (10b) of a needle device are retracted into the one end opening, a first protrusion position where the microneedles are externally protruded out to a first distance from the one opening, and a second protrusion position where the microneedles are externally protruded out to a second distance shorter than the first distance from the one opening. A fluid is discharged from the injector at the second protrusion position via the needles of the needle device.

Tomoya Sumita
Yumiko Yamada
Masaki Kono

JP2014522580A

November 01, 2017

June 20, 2013

Click for automatic bibliography generation  

Toppan Printing Co., Ltd.

A61M37/00; A61M5/42

JP2010532219A
JP2002355317A
JP2004526520A

EP2460553A1

Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi

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