Patent · US Active

Drug delivery system with flexible piston assembly

US12070582B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

AMGEN INC. · US

Inventors

Mehran Mojarrad · Thousand Oaks, US
Ali Nekouzadeh · Simi Valley, US
Susan McConnell Montalvo · Thousand Oaks, US
Scott R. Gibson · San Fernando, US
Sheldon B. Moberg · Thousand Oaks, US
Joshua Tamsky · Los Angeles, US
Paul D. Faucher · Escondido, US

Key dates

Filing date	Nov 10, 2020
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Nov 12, 2042

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3152
WIPO fieldMedical technology
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.