SEALING ARRANGEMENT FOR SYRINGE

A syringe containing a high water content product and for use in a drug infusion system is provided. The syringe includes a plunger carrying front and rear o-rings made of a diene rubber compound such as chlorobutyl rubber or bromobutyl rubber to impart very low gas permeability characteristics to t...

Full description

Saved in:
Bibliographic Details
Main Authors WAEBER KENNETH R, CONJEEVARAM RAJKUMAR V, GIBLER MARTIN J, GILLUM CHRISTOPH L, REBNE THOMAS, HOGUE KENNETH E, CLARK BRADLEY A, ZHOU JI, HEMINGWAY JEREMY L, BENNETT MARK A, WIESNER BRYAN L, HARRELL PATRICK A, MACKEY SEAN E, PARROTT DAVID A
Format Patent
LanguageEnglish
Published 25.04.2013
Subjects
CONVEYING
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
HANDLING THIN OR FILAMENTARY MATERIAL
HUMAN NECESSITIES
HYGIENE
MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS
MEDICAL OR VETERINARY SCIENCE
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
UNPACKING
Online AccessGet full text

Cover

More Information
Summary:A syringe containing a high water content product and for use in a drug infusion system is provided. The syringe includes a plunger carrying front and rear o-rings made of a diene rubber compound such as chlorobutyl rubber or bromobutyl rubber to impart very low gas permeability characteristics to the o-rings. The plunger may be molded as a single part or in two parts. If molded as one part with radially-engaging mold portions, the seal glands in the plunger may include parting lines from the mold. If molded as two parts with axially-engaging mold portions, the front seal gland may include a sealing surface and under cut that has no parting line. The o-rings may be surface treated with a lubricant to improve sealing where the molding process gives rise to parting lines in the seal glands.
Bibliography:Application Number: US201213600060