Mallinckrodt, Inc.

Gordon Persaud

Michael Scott Hughes

William A Hagen

Brian D Doty

A device and method for providing a suspended agent such as a contrast agent without mechanical resuspension. A volume of agent ( ) is divided into sub-volumes in a network ( ) of tubes ( ), cells ( ), sponges ( ), grooves ( ), etc. A propellant fluid ( ) flows through the network ( ) to release the suspended agent ( ). The network ( ) may be internal to a container ( ) for the propellant fluid ( ). Alternatively, the network ( ) may be adjacent an exit port ( ) of a container ( ) for the propellant fluid ( ), or may be in-line between a propellant fluid container ( ) and a patient. The invention reduces sedimentation of agents into one or a few aggregates and eliminates a mechanical mixing step. The invention thus provides a uniformly suspended agent, improving patient health and safety and increasing cost and time savings.

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Lee's Summit, MO, United States of America

Gordon Persaud