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:
May. 10, 2016
Filed:
Dec. 06, 2011
Michael Helmer, Frankfurt am Main, DE;
Peter Nober, Rommersheim, DE;
Christoph Garthen, Dexheim, DE;
Christian Dexheimer, Langen, DE;
Benjamin Schaefer, Bischoffen, DE;
Michael Helmer, Frankfurt am Main, DE;
Peter Nober, Rommersheim, DE;
Christoph Garthen, Dexheim, DE;
Christian Dexheimer, Langen, DE;
Benjamin Schaefer, Bischoffen, DE;
SANOFI-AVENTIS DEUTSCHLAND GMBH, Frankfurt am Main, DE;
Abstract
The present invention relates to a cartridge for a drug delivery device comprising of a body of substantially cylindrical shape, a piston slidably disposed in the body along two opposite axial directions, along a distal and along a proximal direction, and at least one friction means operably engaged with the piston to generate a pre-defined friction force between the piston and an inside wall of the body, when the piston is displaced relative to the body, wherein in response to an axial displacement of the piston relative to the body in distal direction and in proximal direction, the at least one friction means is adapted to generate respective proximal and distal friction forces that are different in magnitude.