Mallinckrodt, Inc.

William A Hagen

Michael Scott Hughes

Frank M Fago

Michael R Mahoney

Mark Edward Boyce

Brian D Doty

Munehito Kurimoto

Gordon Persaud

An aspect of the invention, is directed to a luer fitting. The luer fitting may include a male luer, a luer collar disposed about the male luer, and a fulcrum disposed at a base portion of a receptacle between the male luer and the luer collar. Another aspect of the invention, is directed to a breakage resistant fitting. The breakage resistant fitting may include a male portion having a central fluid passage, a supplemental securement portion generally concentric with the male portion, and an annular receptacle between the male portion and the supplemental securement portion. The annular receptacle may include a base region having a mating clearance interspace sized substantially greater than a mating female fitting in a radial direction, or an axial direction, or a combination thereof.

Breakage resistant fitting

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.

Suspension device and method

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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Canton, GA, United States of America

William A Hagen