An infusion device includes a stationary structure (2) including a first gear member (14), a drug container (11), and means (6, for extruding a liquid drug from the drug container (11) for injection into a patient 7, 8, 12), and a dynamic structure (3) including a second gear member engaged with the first gear member, and the first gear member and the second gear member (13, 14)PROBLEM TO BE SOLVED To highly accurately count viable particles while distinguishing from nonviable particlesSOLUTION A front stage irradiation unit 2 is configured to irradiate a sample, which becomes fluid, with ultraviolet ray at a front stage of a viable particle counting unit 1 The ultraviolet ray is ultraviolet ray in a deep ultraviolet region where fluorescence intensity of a紙の本 Distinction 00 新刊 著者 ATSU (著) アカデミックな英語とプラクティカルな英語を最高のバランスで育て上げ、確固たる語彙力を築き上げることを目的とした英単語帳。経済、音楽、環境や政治、AIなど合計40のトピック Distinction Atsueigo Distinction 本屋