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:
Aug. 13, 2019
Filed:
Jun. 13, 2017
Sanofi-aventis Deutschland Gmbh, Frankfurt am Main, DE;
Michael Helmer, Frankfurt am Main, DE;
Christoph Eissengarthen, Ginsheim, DE;
Winfried Huthmacher, Frankfurt, DE;
Carsten Mosebach, Mainz, DE;
Sanofi-Aventis Deutschland GMBH, Frankfurt am Main, DE;
Abstract
A drug delivery device () is provided comprising a housing () comprising a distal end and a proximal end and a cartridge () adapted and arranged to contain at least one dose of a drug (), a bung () being movably arranged within the cartridge (). In an initial state of the device (), the bung () is arranged in a proximal end position with respect to the cartridge (). The device () further comprises a piston rod () adapted and arranged to move the bung () in the distal direction with respect to the cartridge () for delivering a dose of the drug (). The device () further comprises a mechanism operable such that, after a dose delivery operation was completed, the piston rod () is moved into the proximal direction with respect to the bung () by a back off distance (D), wherein in the initial state, a distance between a distal end of the piston rod () and a proximal end of the bung () is greater than zero, with the distance between the piston rod () and the bung () in the initial state being defined by the back off distance (D). Furthermore, a method for assembling a drug delivery device () is provided.