Plug for drug container, method of manufacturing plug for drug container, plug member for drug container, and drug container containing drug using the same

摘要

PROBLEM TO BE SOLVED: To provide a medicine container plug body using a rubber material and a thermoplastic elastomer, which causes no elution of a rubber material component, has excellent sealability even after the extraction of a medical needle, and can hold a plate-like rubber member at an appropriate position in the plug body.SOLUTION: A medicine container plug body 1 includes a plate-like rubber member 4, and an upper formation part 2 and a lower formation part 3 for cooperatively encapsulating it. The lower formation part includes a bottom plate part 31 closely adhering to the undersurface of the plate-like rubber member 4, and a plurality of lower leg parts 32 extending from the peripheral edge part of the bottom plate part 31 in an upper formation part 2 direction, and the upper formation part includes an upper plate part 21 closely adhering to the top surface of the plate-like rubber member 4, and a plurality of upper leg parts 22 for filling the space between the leg parts of the lower formation part 3. The tip of the upper leg part includes an inside extension part 25 extending in an undersurface direction of the plate-like rubber member.SELECTED DRAWING: Figure 5