Patent · US Active

Piston rod assembly for a drug delivery device

US9084852B2 · kind B2 · utility

0Cited by

4References

13Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Michael Helmer · Frankfurt am Main, DE
Christoph Eisengarthen · Ginsheim, DE
Winfried Huthmacher · Frankfurt am Main, DE
Carsten Mosebach · Frankfurt am Main, DE
Leo Zeimetz · Lennestadt, DE

Key dates

Filing date	Mar 31, 2011
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Jan 18, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to a piston rod assembly for a drug delivery device, comprising: a piston rod adapted to be operably engaged with a piston of a cartridge containing a medicament, at least one adjusting member displaceably disposed at the piston rod with respect to the piston rod's long axis, and being interconnected with a distal end section of the piston rod, and at least one interlock means adapted to interact with the adjusting member and/or with the piston rod for mutually locking in position the adjusting member and the piston rod in an arbitrary relative position in order to compensate for tolerances of manufacture and/or of assembly.

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