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:
Oct. 15, 2019

Filed:

Jul. 17, 2014
Applicant:

Sanofi, Paris, FR;

Inventors:

Tom Oakley, Cambridge, GB;

Matt Schumann, Bourn, GB;

Stuart Milne, Buckden St. Neots, GB;

Assignee:

Sanofi, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01); A61M 5/20 (2006.01); A61M 5/31 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31578 (2013.01); A61M 5/20 (2013.01); A61M 5/3146 (2013.01); A61M 5/31535 (2013.01); A61M 5/31541 (2013.01); A61M 5/3157 (2013.01); A61M 5/31501 (2013.01); A61M 5/31543 (2013.01); A61M 5/31553 (2013.01); A61M 5/31561 (2013.01); A61M 5/31573 (2013.01); A61M 5/31583 (2013.01); A61M 2005/3126 (2013.01); A61M 2205/581 (2013.01); A61M 2205/586 (2013.01);
Abstract

A drive mechanism for a delivery device is presented. The drive mechanism comprises a housing () and a piston rod () having a longitudinal axis (x) and a piston rod feature (). The drive mechanism further comprises a drive member () being movable with respect to the housing (). The drive member () comprises a drive feature (). The drive feature () is selectively engageable with the piston rod feature () by the radial displacement of the drive member () with respect to the piston rod (). When the drive member () is in the first position, the drive member () is disengaged from the piston rod (), and when the drive member () is in the second position, the drive feature () is engaged with the piston rod feature (). When the drive member () moves distally with respect to the housing (), said distal movement is transferred to the piston rod () such that the piston rod () moves distally with respect to the housing ().


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