Device for transferring and conditioning infusion liquid and related technology

An infusion system, comprising:

• a reservoir configured to contain infusion liquid;
• an infuser configured to deliver the infusion liquid to a patient;
• and
• a transferring and conditioning device configured to transfer the infusion liquid from the reservoir to the infuser and to condition the infusion liquid, wherein the transferring and conditioning device includes:
• a port through which the transferring and conditioning device is configured to receive the infusion liquid from the reservoir and to dispense the infusion liquid to the infuser,
• a container configured to hold the infusion liquid received via the port;
• a flowpath extending between the port and the container, wherein the flowpath comprises a first passage and a second passage, wherein the second passage is in parallel with the first passage;
• a conditioner along the flowpath at the first passage, wherein the conditioner is configured to condition the infusion liquid moving between the port and the container;
• and
• a check valve at the second passage, wherein the check valve is configured to cause the infusion liquid moving from the port to the container to drop in pressure across the first passage and the second passage, and wherein the pressure drop across the first passage is greater than the pressure drop across the second passage.