Syringe with plunger rod having a flexible portion

US9289556B2 · kind B2 · utility

Assignee

• Becton Dickinson France · FR

Inventors

• Darrin Manke · North Andover, US
• Christopher Labak · Brookline, US
• Joseph Omer St. Cyr · Salem, US
• David R. Schiff · Highland Park, US
• Mathieu Turpault · Berwyn, US
• Antonio Gatta · Philadelphia, US
• John Depler Coleman · Philadelphia, US

Key dates

• Filing date: Sep 19, 2012
• Grant date: Mar 22, 2016
• Expiry date: Feb 9, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/31518
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A syringe assembly including a plunger rod having a first end, a second end, and a rod portion extending therebetween, wherein at least a portion of the rod portion is flexible is disclosed. The flexible portion of the rod portion allows a stopper to be moved between a first position and a second position within a syringe barrel while the overall length of the syringe assembly remains the same throughout the movement between the first position and the second position. In another embodiment, a syringe assembly including a restraining member adapted to communicate with the flexible portion of the rod portion such that movement of the first end of the plunger rod in a first direction actuates movement of the second end of the plunger rod in a second direction different than the first direction is disclosed.