Patent · US Active

Drive mechanism for a medication delivery device and medication delivery device

US9750888B2 · kind B2 · utility

3Cited by

30References

14Claims

0Family size

Assignee

Sanofi-Aventis Deutschland GMBH · DE

Inventors

Steffen Raab · Frankfurt am Main, DE
Ulrich Bruggemann · Frankfurt am Main, DE

Key dates

Filing date	Aug 14, 2014
Grant date	Sep 5, 2017
Priority date	—
Expiry date	Dec 23, 2035

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 is presented having a housing, a rotation member that rotates in a first direction with respect to the housing during setting of a dose of a medication and rotates in a second direction with respect to the housing during delivery of the dose, the second direction being opposite to the first direction. The device also has a piston rod that is displaced in a distal direction with respect to the housing for delivering the dose, a drive member which follows rotational movement of the rotation member in the second direction during delivery of the dose, and a stop member which prevents rotational movement of the drive member with respect to the housing in the first direction during setting of the dose.

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