US 12,186,536 B2
Drug delivery device
Hans Stenberg Knudsen, Vaerloese (DK); Christian Plambech, Soeborg (DK); Rasmus Øhlenschlæger, Kobenhavn V (DK); and Jørgen Jørgensen, Gentofte (DK)
Assigned to AMGEN INC., Thousand Oaks, CA (US)
Filed by AMGEN INC., Thousand Oaks, CA (US)
Filed on May 18, 2021, as Appl. No. 17/323,830.
Application 17/323,830 is a continuation of application No. 15/762,939, granted, now 11,033,684, previously published as PCT/EP2016/076156, filed on Oct. 28, 2016.
Claims priority of application No. 15191929 (EP), filed on Oct. 28, 2015.
Prior Publication US 2021/0268192 A1, Sep. 2, 2021
Int. Cl. A61M 5/20 (2006.01); A61M 5/145 (2006.01); A61M 5/32 (2006.01); A61M 5/142 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/2033 (2013.01) [A61M 5/1454 (2013.01); A61M 5/3204 (2013.01); A61M 5/326 (2013.01); A61M 2005/14256 (2013.01); A61M 2005/14506 (2013.01); A61M 2005/206 (2013.01); A61M 2005/31518 (2013.01); A61M 2005/3267 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A drug delivery device comprising:
a housing having an opening;
a drug storage container including a plunger and a needle, the needle having an insertion end configured to extend at least partially through the opening during a delivery state;
a shaft having a first position where the shaft is spaced from the plunger and a second position where the shaft contacts the plunger;
a first drive configured to apply a first force to the shaft for moving the shaft from the first position to the second position and subsequently moving the shaft and the plunger to expel a drug from the drug storage container; and
a damper configured to apply a second force to oppose the first force, wherein the second force applied by the damper depends at least partially on a velocity of the shaft.