Amgen Inc.

Olivia Alice Henderson

Ronald Forster

Robert W Swift

Julian Jazayeri

Rasmus Øhlenschlæger

Peter Dan Kaare Soelberg

Ren-Yo Forng

Chia-Jung Wu

Jessica Hai Liu

Mingda Eu

Gregory Gordon

Cheng-Chieh Chou

Malak Guirguis

Kristen Brown

Jolita Seckute

A plunger configured as described herein provides geometry optimizations to minimize friction magnitude and variability during use by maintaining low deformation under large extrusion forces. More specifically, plunger embodiments described herein minimize a contact area between the plunger and a syringe or chamber, while also maintaining high contract pressures to maintain container closure integrity. Moreover, the plunger embodiments are configured to have minimal or no increase in the contact area under high loads associated with the delivery of viscous products.

Plungers for drug delivery devices

Growing community of inventors

Newbury Park, CA, United States of America

Olivia Alice Henderson