A fluid delivery system for delivery of an injection fluid to a patient
generally includes a pump system to pressurize the injection fluid, a
patient interface in removable fluid connection with the pump system, and
a connector in fluid connection between the pump system and the patient
interface. The pump system is connected to an inlet of the connector, and
the patient interface is removably connected to an outlet of the
connector. The connector includes a sealing member at least partly
disposed within a housing of the connector that is biased to close the
outlet when the patient interface is removed.