Multi-vial adapter

A multi-vial adapter comprising:

• an adapter body including at least two body parts which are connected to each other at a certain angle, a head part which protrudes upward from a connection portion between the body parts, and at least two spike parts which extend downward from the body parts, respectively, at positions spaced apart from the connection portion at a predetermined distance;
• and
• at least two adapter caps which are physically fastened and fixed to the body parts, respectively while allowing the spike parts to pass therethrough, respectively,
• wherein the adapter body is configured such that the body parts, the head part, and the spike parts are integrally formed through injection molding, and is formed therein with a liquid drug flow path that guides movement of a liquid drug from the respective spike parts to the head part via the respective body parts,
• wherein the liquid drug flow path includes:
• via channels extending along an inside of the respective body parts, and having one ends connected to each other and opposite ends that are open;
• an inflow channel extending along an inside of each of the spike parts, and having a lower end that is open and an upper end communicating with each of the via channels;
• an outflow channel formed inside the head part, and having an upper end that is open and a lower end communicating with the via channel;
• and
• a channel closer fixedly coupled to the opposite end of the via channel to close the open opposite end of the via channel, thereby forming a closed path extending from the open lower end of the inflow channel to the open opposite end of the via channel.