The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2019
Filed:
Sep. 03, 2010
Michael Jugl, Frankfurt am Main, DE;
Gunther Sendatzki, Frankfurt am Main, DE;
Axel Teucher, Frankfurt am Main, DE;
Michael Jugl, Frankfurt am Main, DE;
Gunther Sendatzki, Frankfurt am Main, DE;
Axel Teucher, Frankfurt am Main, DE;
Sanofi-Aventis Deutschland GMBH, Frankfurt am Main, DE;
Abstract
A drive mechanism for a drug delivery device, preferably for a pen-type injector, the mechanism comprises a spindle () movable in a first direction during a delivery step, a splined portion () operatively coupled to the spindle (), and retraction means () acting on the splined portion () at least at the end of the delivery step. Thereby, that after the delivery step the spindle () and/or the splined portion () is moved in a second direction contrary to the first direction, such that the whole drive mechanism is relieved from stresses.