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:
Aug. 11, 2026

Filed:

Aug. 16, 2019
Applicant:

Amgen Inc., Thousand Oaks, CA (US);

Inventors:

Matias Melander, Copenhagen, DK;

Joshua Jay Dudman, Copenhagen, DK;

Joseph Michael Iglesias, Santa Monica, CA (US);

Bjarke Lykke Ludvig Svendsen, Slagelse, DK;

Adam B. Mccullough, Westlake Village, CA (US);

Christian Plambech, Soeborg, DK;

Steve Sanchez, Thousand Oaks, CA (US);

Assignee:

AMGEN INC., Thousand Oaks, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01); A61M 5/20 (2006.01); A61M 5/32 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31585 (2013.01); A61M 5/2033 (2013.01); A61M 5/3202 (2013.01); A61M 2005/2013 (2013.01);
Abstract

A drug delivery device includes a housing, an injection assembly at least partially disposed in the housing, a shield, and a drive assembly at least partially disposed in the housing and coupled with the injection assembly and the shield. The shield has an extended position where at least a proximal end thereof extends a distance beyond a proximal end of the housing. The injection assembly includes a needle or cannula having an endpoint. Upon moving the shield axially towards the distal end of the housing a predetermined distance, a retraction profile commences whereby the drive assembly administers a medicament via the injection assembly. A peak resistance force is exerted within approximately the first 12 mm of axial movement of the shield.


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