An ampoule guide and a drug solution administering unit

Abstract

An object of the present invention is to provide an ampoule guide and drug solution administrating unit having excellent stability. An above object is an ampoule guide (30) comprising a hollow cylindrical guard (31) which is provided at tipping portion, the ampoule guide being capable of accommodating therein an ampoule (20), characterized in that, the ampoule guide (30) further comprises a plurality of projections (33) in a direction parallel to central axis (5) of the ampoule (20), wherein some of the projections are taller than their surrounding projections, the taller projections being provided at an angular intervals of any one of 60 degrees, 90 degrees, 120 degrees, and 180 degrees.

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