Patent · US Active

Syringe assembly

US7854721B2 · kind B2 · utility

3Cited by

5References

2Claims

0Family size

Assignee

3M ESPE AG · DE

Inventors

Marc Peuker · Schorndorf, DE
Arno Hohmann · Munich, DE
Michael James Knee · Petersfield, GB

Key dates

Filing date	Aug 27, 2004
Grant date	Dec 21, 2010
Priority date	—
Expiry date	Jul 25, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/342
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to a syringe assembly comprising a syringe body member forming a syringe barrel having a syringe passageway passing through the length thereof; a discharge port being smaller in diameter than the syringe passageway and communicating with the syringe passageway at a front end thereof; at least one plunger member situated in the syringe barrel and dividing said syringe passageway into at least a first chamber at the front end of said syringe passageway and a second chamber at the back end of said syringe passageway, and comprising a plunger rod for actuating said plunger member; wherein said at least one plunger member being adapted for providing a flow connection between said chambers.

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