Patent · US Active

Resettable drive mechanism for a medication delivery device and medication delivery device

US8968258B2 · kind B2 · utility

65Cited by

4References

15Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Philippe Nzike · Frankfurt am Main, DE
Steffen Raab · Frankfurt am Main, DE
Ulrich Bruggemann · Frankfurt am Main, DE
Uwe Dasbach · Frankfurt am Main, DE
Uwe Boeser · Frankfurt am Main, DE

Key dates

Filing date	Dec 9, 2009
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Feb 11, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/582
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A resettable drive mechanism for a medication delivery device comprising a housing and a drive member rotatable in a second direction for delivering a dose. A piston rod driven distally when a drive member rotates in the second direction. A stop member prevents rotation of the drive member in a first direction opposite the second direction, when the stop member engages the drive member. A clutch member is movable between a delivery and reset position. When the clutch member is in the delivery position, the stop member and the drive member engage and the drive member is prevented from rotating in the first direction. When the clutch member is in the reset position, the drive member and the stop member disengage. The drive member is rotatable in the first direction.

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