Patent · US Active

Drive mechanism for a medication delivery device and medication delivery device

US8840591B2 · kind B2 · utility

70Cited by

1References

7Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Steffen Raab · Frankfurt am Main, DE
Ulrich Brueggemann · Bound Brook Junction, US

Key dates

Filing date	Dec 12, 2008
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jul 5, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/18696
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A drive mechanism for a medication delivery device containing a resilient member and having a rotation member configured to be rotated in a first direction during setting of a dose of a medication and to be rotated in a second direction during delivery of the dose, where rotation member is coupled to a drive member that is coupled to a piston rod such that on dose delivery the piston rod is displaced in a distal direction to dispense a medicament and where the resilient member prevents movement of the drive member and the piston rod during dose setting.

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