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. 27, 2024

Filed:

Nov. 10, 2020
Applicant:

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

Inventors:

Mehran Mojarrad, Thousand Oaks, CA (US);

Ali Nekouzadeh, Simi Valley, CA (US);

Susan McConnell Montalvo, Thousand Oaks, CA (US);

Scott R. Gibson, Granada Hills, CA (US);

Sheldon B. Moberg, Thousand Oaks, CA (US);

Joshua Tamsky, Los Angeles, CA (US);

Paul D. Faucher, Escondido, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31513 (2013.01); A61M 2005/3152 (2013.01);
Abstract

Drug delivery devices are configured to include a gas-driven piston assembly having a flexible pushrod, a non-linear guide include a non-linear guide pathway at least partially surrounding the flexible pushrod, a cylinder at least partially surrounding the flexible pushrod, and a piston movable within the cylinder in response to the pressurized gas entering the cylinder. Some arrangements include a roller pushrod guide system and/or a gear pushrod guide system.


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