CONVERTIBLE PLUNGERS, FILM COATED PLUNGERS AND RELATED SYRINGE ASSEMBLIES

A convertible plunger is provided comprising an internal portion and a generally cylindrical exterior surface. At least a portion of the exterior surface is maintained in an initial expanded state by a property of the internal portion. The expanded state is reducible to a constricted state by an ope...

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Main Authors GIRAUD, JEAN-PIERRE, ROGERS, JOSEPH W, MIMS, MICHAEL, J, PANGBORN, ROBERT J, SAGONA, PETER J, SOL, BERNARD, ABRAMS, ROBERT S
Format Patent
LanguageEnglish
French
German
Published 17.08.2016
Subjects
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:A convertible plunger is provided comprising an internal portion and a generally cylindrical exterior surface. At least a portion of the exterior surface is maintained in an initial expanded state by a property of the internal portion. The expanded state is reducible to a constricted state by an operation that is applied to the internal portion of the plunger to alter the property. A film coating may also be applied to a sidewall of the sleeve to reduce a sliding friction between the sleeve and barrel. A film coating may also be applied to a nose cone of the plunger to provide a barrier between the plunger and product in the barrel.
Bibliography:Application Number: EP20140844974