The stopper collar (12) has a control channel section (29) which runs perpendicular to the control channel (16) of the stopper part (11) and extends said channel (16) as far as the sealing bead (15).

The regulator channel is configured to facilitate flow of a regulating fluid to compensate for changes in volume of a medical fluid in the vial.

In certain embodiments, a vial adaptor comprises a housing member, a connector configured to couple the adaptor with a vial, a regulator channel, and an extractor channel formed in the housing member.

A switching regulator (100) includes a first switching regulator (200) corresponding to a master channel, and a second switching regulator (300) corresponding to a slave channel.

The regulator circuit has an n-channel MOSFET transistor (Q1) serving as a regulator element.

The regulating stage (100) furthermore has a first flow duct (101) and a second flow duct (102).

The stopper collar (12) has a control channel section (29) which runs perpendicular to the control channel (16) of the stopper part (11) and extends said channel (16) as far as the sealing bead (15).

The antenna can include a channel (24) through which a temperature controlling fluid, which has been cooled by a closed circuit temperature controller, is passed.

The regulator channel is configured to facilitate flow of a regulating fluid to compensate for changes in volume of a medical fluid in the vial.

The condenser dryer (1) further comprises a latent heat accumulator (7) and a cooling air duct (8).

A regulator flow channel set around the first induction core (50A) and the second induction core (50B) is partitioned into first and second regulator flow channels by a flow channel partitioning member.

In certain embodiments, a vial adaptor comprises a housing configured to couple the adaptor with a vial, an access channel, a regulator channel, and a regulator assembly.

The latent heat accumulator (7) is arranged inside the cooling air duct (8).

The second channel (38) provides a way of changing the degree of regulation of the flow controller.

The invention relates to a flow regulator (10) which comprises a regulator housing (1) which is provided with control device (8a) having a central body (3a) in a passage channel (2).