HOLLOW NEEDLE

A hollow needle according to the present invention comprises: a needle body made of an electrically conductive material, forming a cylindrical shape, and including a shaft part, a tip part connected with the shaft part, and an opening for discharging or drawing in a liquid, in which a cavity communi...

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Bibliographic Details
Main Authors YAGI Takeshi, HIMURA Atsushi, ARAI Tsunenori, NARA Kazutaka, SUEMATSU Katsuki
Format Patent
LanguageEnglish
French
German
Published 24.04.2024
Subjects
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Summary:A hollow needle according to the present invention comprises: a needle body made of an electrically conductive material, forming a cylindrical shape, and including a shaft part, a tip part connected with the shaft part, and an opening for discharging or drawing in a liquid, in which a cavity communicating between the shaft part and the opening is formed; and an annular insulating film made of an electrically insulative material, which exposes the opening and at least part of the tip part, and coats at least part of an outer circumferential surface of the shaft part.
Bibliography:Application Number: EP20210766909