Liquid pump dispenser including a vial adapter

A liquid pump dispenser (1), for pumping a dosage of liquid from a necked vial (7), which is sealed by a stopper (76), to an outlet (26), said liquid pump dispenser (1) comprising a vial adapter (4) and a pump dispenser unit (2),

• wherein the vial adapter (4) comprises:
• a hollow tubular body (48) having a first end (44) and a second end (64) opposite to the first end,
• a cavity (46) formed inside the hollow tubular body (48) and divided into a first half-space (56a) and a second half-space (56b) by a partition wall (49),
• a first connecting structure (45) at the first end (44) of the hollow tubular body (48), configured for connecting the vial adapter (4) with the pump dispenser unit (2),
• a second connecting structure (61, 63) at the second end (64) of the hollow tubular body (48), configured for latching the vial adapter (4) at a neck of the vial (7), for connecting the vial adapter (4) with the vial (7),
• a piercing mandrel (57) configured for piercing the stopper (76) of the vial (7) for liquid transfer, said piercing mandrel (57) extending through the partition wall (49), and
• a first tube coupling structure (50, 51) connected with the piercing mandrel (57);
• and
• wherein the pump dispenser unit (2) comprises:
• a collar (20) having a connecting structure (20a) mated to the first connecting structure (45) of the vial adapter (4), for connecting the pump dispenser unit (2) with the vial adapter (4),
• a central pump housing (300) disposed in the collar (20), which defines a piston chamber (313, 314), in which a piston (35) is movably supported,
• a second tube coupling structure (32) provided at a first end of the central pump housing (300), and
• an operating button (22) disposed at a second end of the central pump housing (300) opposite to said first end, for actuating the piston (35);
• wherein
• a connecting tube (31, 330) is accommodated in at least one of the first tube coupling structure (50, 51) and second tube coupling structure (32) in a fluid-tight manner, for connecting the vial adapter (4) and the pump dispenser unit (2) for liquid transfer;
• wherein
• the connecting tube (31, 330) is flexible, and
• the pump dispenser unit (2) comprises a ball-less pump actuated by the operating button (22), so that a dosage of liquid can be pumped from the necked vial (7) to the outlet (26) in an upside-down orientation of the vial (7) without leakage or dripping problems.

A liquid pump dispenser (1), for pumping a dosage of liquid from a necked vial (7), which is sealed by a stopper (76), to an outlet (26), said liquid pump dispenser (1) comprising a vial adapter (4) and a pump dispenser unit (2), each comprising a connecting structure (45, 61, 63, 20a) configured for coupling the vial adapter (4) with the pump dispenser unit (2) and the vial adapter (4) with the neck of the vial (7), respectively,

• wherein the vial adapter (4) comprises:
• a hollow tubular body (48) having a first end (44) and a second end (64) opposite to the first end,
• a cavity (46) formed inside the hollow tubular body (48) and divided into a first half-space (56a) and a second half-space (56b) by a partition wall (49), and
• a piercing mandrel (57) configured for piercing the stopper (76) of the vial (7) for liquid transfer when the vial adapter (4) is coupled with the neck of the vial (7), said piercing mandrel (57) extending through the partition wall (49);
• and
• wherein the pump dispenser unit (2) comprises:
• a central pump housing (300), which defines a piston chamber (313, 314), in which a piston (35) is movably supported, and
• an operating button (22) disposed at a second end of the central pump housing (300) opposite to said first end, for actuating the piston (35);
• wherein
• the piercing mandrel (57) is connected with the pump dispenser unit (2) via a connecting tube (31, 330) in a fluid-tight manner for liquid transfer;
• wherein
• the connecting tube (31, 330) is flexible, and
• the pump dispenser unit (2) comprises a ball-less pump actuated by the operating button (22), so that a dosage of liquid can be pumped from the necked vial (7) to the outlet (26) in an upside-down orientation of the vial (7) without leakage or dripping problems.