Fluid transfer device

A fluid transfer device for transferring a fluid between a diluent container and a medicament container, the fluid transfer device comprising:

• a body;
• a first connecting portion configured to connect to the diluent container, the first connecting portion comprising a first fluid channel to fluidically communicate with an interior of the diluent container;
• a second connecting portion configured to connect to the medicament container, the second connecting portion comprising a second fluid channel to fluidically communicate with an interior of the medicament container;
• a third fluid channel configured to fluidically communicate with a pump device;
• wherein when the fluid transfer device is in a first configuration,
• the first fluid channel is fluidically coupled to the third fluid channel to support a flow of fluid from the first fluid channel into the third fluid channel, and
• the third fluid channel is fluidically coupled to the second fluid channel to support a flow of fluid from the third fluid channel into the second fluid channel, and to prevent a flow of fluid from the third fluid channel into the first fluid channel;
• and
• wherein when the fluid transfer device is in a second configuration,
• the second fluid channel is fluidically coupled to the third fluid channel to support a flow of fluid from the second fluid channel into the third fluid channel, and
• the third fluid channel is fluidically coupled to the first fluid channel to support a flow of fluid from the third fluid channel into the first fluid channel and to prevent a flow of fluid from the third fluid channel into the second fluid channel.