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:
Jun. 24, 2025
Filed:
Dec. 09, 2020
Applicant:
Novo Nordisk A/s, Bagsvaerd, DK;
Inventors:
Nicolai Michael Villadsen, Oelstykke, DK;
Bo Kvolsbjerg, Helsingoer, DK;
Assignee:
Novo Nordisk A/S, Bagsvaerd, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31585 (2013.01); A61M 2207/00 (2013.01);
Abstract
The invention relates to a pre-filled injection device with a non-removable cartridge wherein the drive mechanics comprises a threaded piston rod which is moved helically in a nut secured to a housing structure. During assembly of the injection device it is possible to rotate the nut member to thereby advance the piston rod into a position eliminating any air-gap otherwise occurring between the piston rod and the plunger inside the cartridge.