公开(公告)号：US20240165338A1

公开(公告)日：2024-05-23

申请号：US18550647

申请日：2022-03-03

Applicant: AMGEN INC.

Inventor： Jan Mikael JENSEN ,  Lars EILERTSEN

IPC: A61M5/315 ,  A61M5/20 ,  A61M5/31

CPC classification number: A61M5/31515 ,  A61M5/20 ,  A61M2005/2086 ,  A61M2005/3143 ,  A61M2205/02

Abstract: A drug delivery device may include a housing defining a longitudinal axis and having an opening and a drug storage container including a barrel, a stopper and a delivery member, the stopper movably positioned within the barrel and the delivery member positioned at a distal end of the barrel and having an insertion end configured to extend at least partially through the opening during a delivery state. The device may also include plunger moveable toward the distal end of the drug storage container to engage the stopper and expel a drug from the drug storage container through the delivery member, the plunger including a body portion and a shock absorbing portion. The device may further include a plunger biasing member coupled with the plunger and configured to urge the plunger toward the distal end of the drug storage container.