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:
Dec. 24, 2019
Filed:
Jul. 01, 2016
Novo Nordisk A/s, Bagsvaerd, DK;
Henrik Bengtsson, Taastrup, DK;
Ronan Carroll, Tisvildeleje, DK;
Soeren Steenfeldt-Jensen, Hornbaek, DK;
Henning Graaskov, Bagsvaerd, DK;
Jan Harald Preuthun, Broenshoej, DK;
Emil Gram Spork, Copenhagen N, DK;
Novo Nordisk A/S, Bagsvaerd, DK;
Abstract
The present invention relates to a piston washer () for use in a drug delivery device for transferring a distally directed axial force from a piston rod () towards a piston () of a held cartridge (). The piston washer () defines a proximal surface portion () adapted for engagement with the distal portion of a piston rod () and a distal surface portion () configured to engage and abut a piston (). An axial distance defining device () is positioned between the proximal surface portion () and the distal surface portion (), wherein the axial distance defining device () is configured to be shifted from a first axial compressible state into a second axial non-compressible state. The invention further relates to a drug delivery device incorporating such piston washer ().