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.

Date of Patent:
Jun. 11, 2019

Filed:

Nov. 17, 2014
Applicant:

Sanofi-aventis Deutschland Gmbh, Frankfurt am Main, DE;

Inventors:

Stefan Blancke, Frankfurt am Main, DE;

Axel Teucher, Frankfurt am Main, DE;

Michael Jugl, Frankfurt am Main, DE;

Christiane Schneider, Frankfurt am Main, DE;

Assignee:

Sanofi-Aventis Deutschland GMBH, Frankfurt am Main, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31576 (2013.01); A61M 5/3155 (2013.01); A61M 5/31533 (2013.01); A61M 5/31545 (2013.01); A61M 5/31565 (2013.01);
Abstract

A drive assembly for a drug delivery device includes a housing; a number sleeve threadedly engaged with the housing; a dial link rotatably fixed with the number sleeve in a first axial arrangement relative to each other, the number sleeve being rotatable relative to the dial link in a second axial arrangement; a clutch component connected to an inner proximal section of the number sleeve through multiple flexible assembly fingers. The clutch component can engage the number sleeve with the dial link in the first axial arrangement and disengage the number sleeve from the dial link in the second axial arrangement. The drive assembly includes means for preventing an access to the flexible assembly fingers from the outer proximal section of the number sleeve and/or the flexible assembly fingers from flexing inwardly and disengaging from the connection with the inner proximal section.


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