Female connector, male connector, connection structure, liquid-sending circuit, and medical container

A male connector to be connected to a female connector, having a tubular section through which a liquid-like substance flows out,

• wherein the male connector includes:
• a platform in which the tubular section is provided so as to protrude from a center of one principal surface;
• and
• an engagement tab protruding outward from an outer circumferential surface of the platform,
• the female connector includes:
• a tube-shaped section to be connected to the tubular section;
• a bottom section connected to one end of the tube-shaped section;
• a liquid-sending tube connecting section to which a liquid-sending tube is to be connected, one end of the liquid-sending tube connecting section being connected to the tube-shaped section through the bottom section of the female connector, and an inside of the liquid-sending tube connecting section being communicated with an inside of the tubular section when the female connector is connected to the male connector;
• and
• a brim section provided so that at least a part thereof protrudes to a side of the tube-shaped section opposite to the liquid-sending tube connecting section side,
• an inner circumferential surface of the brim section opposed to a center axis of the tube-shaped section includes an engagement wall protruding inward with a longitudinal direction thereof being in a circumferential direction, and a part of the inner circumferential surface of the brim section on the tube-shaped section side relative to the engagement wall, which is recessed with respect to the center axis relative to the engagement wall due to the presence of the engagement wall, constitutes a concave portion in which the engagement tab is to be stored, and
• a surface of the engagement tab facing the engagement wall when the female connector is connected to the male connector includes an inclined surface that the engagement wall mounts in a sliding direction of the engagement wall with respect to the engagement tab during the connection between the female connector and the male connector.

A male connector to be connected to a female connector, having a tubular section through which a liquid-like substance flows out,

• wherein the male connector includes:
• a platform in which the tubular section is provided so as to protrude from a center of one principal surface;
• and
• a brim section that protrudes from the one principal surface of the platform to the tubular section side and is placed around the tubular section,
• the female connector includes:
• an insertion section in which the tubular section is to be inserted;
• a liquid-sending tube connecting section to which a liquid-sending tube is to be connected, the liquid-sending tube connecting section being connected to the insertion section and an inside of the liquid-sending tube connecting section being communicated with an inside of the tubular section when the female connector is connected to the male connector;
• a flange section opposed to the platform when the female connector is connected to the male connector;
• and
• an engagement tab protruding outward from an outer circumferential surface of the flange section,
• an inner circumferential surface of the brim section opposed to a center axis of the tubular section of the male connector includes an engagement wall protruding inward with a longitudinal direction thereof being in a circumferential direction, and a part of the inner circumferential surface of the brim section on the platform side relative to the engagement wall, which is recessed with respect to the center axis relative to the engagement wall due to the presence of the engagement wall, constitutes a storage section in which the engagement tab is to be stored, and
• a surface of the engagement wall facing the engagement tab when the female connector is connected to the male connector includes an inclined surface that the engagement tab mounts in a sliding direction of the engagement tab with respect to the engagement wall during the connection between the female connector and the male connector.