Patent · US Active

Stopper and plunger rod for a pre-filled syringe

US8740854B2 · kind B2 · utility

21Cited by

41References

31Claims

0Family size

Assignee

Becton, Dickinson and Company · US

Inventors

Eric Schiller · Kinnelon, US
Michael Vincent Quinn · East Hanover, US
Johanna Torres · Oxnard, US
E Guan · Warwick, US
Anthony Economou · Sparta, US
Gang Ju · Fair Lawn, US

Key dates

Filing date	Jun 4, 2008
Grant date	Jun 3, 2014
Priority date	—
Expiry date	Sep 6, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/31523
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A plunger rod adapted for attachment with a stopper for use with a syringe barrel is disclosed. The plunger rod includes an elongated member having a front end and a back end, the plunger rod extending along a longitudinal axis. The plunger rod includes at least one deflecting arm associated with the front end of the elongated member. The deflecting arm is capable of deflecting radially inward during insertion of the plunger rod into a stopper, and deflecting outward into contact with an inner surface of the stopper after insertion to lock the plunger rod within the stopper.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.