Kristen L Brown

US Patent:

20190143047, May 16, 2019

Filed:

Oct 9, 2018

Appl. No.:

16/154759

Inventors:

- Thousand Oaks CA, US
Ronald Forster - Simi Valley CA, US
Jolita Seckute - Thousand Oaks CA, US
Olivia Alice Henderson - Newbury Park CA, US
Kristen Brown - Ventura CA, US
Gregory Gordon - Moorpark CA, US
Rasmus Øhlenschlæger - Kobenhavn V, DK
Peter Dan Kaare Soelberg - Gentofte, DK

International Classification:

A61M 5/315
A61M 5/20

Abstract:

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.