US 12,186,540 B2
Drug delivery device with feedback mechanism
Thomas Mark Kemp, Ashwell (GB); and Hugo Revellat, Royston (GB)
Assigned to Sanofi-Aventis Deutschland GMBH, Frankfurt am Main (DE)
Filed by SANOFI-AVENTIS DEUTSCHLAND GMBH, Frankfurt am Main (DE)
Filed on Feb. 10, 2021, as Appl. No. 17/172,602.
Application 17/172,602 is a continuation of application No. 15/578,668, granted, now 10,940,270, previously published as PCT/EP2016/062455, filed on Jun. 2, 2016.
Claims priority of application No. 15170590 (EP), filed on Jun. 3, 2015.
Prior Publication US 2021/0244889 A1, Aug. 12, 2021
Int. Cl. A61M 5/315 (2006.01); A61M 5/20 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/3157 (2013.01) [A61M 5/2033 (2013.01); A61M 5/3245 (2013.01); A61M 2005/208 (2013.01); A61M 2005/3247 (2013.01); A61M 2005/3267 (2013.01); A61M 2205/581 (2013.01); A61M 2205/582 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A drug delivery device comprising:
a case adapted to receive at least a portion of a medicament container;
a plunger movable relative to the case in a distal direction away from a proximal position for delivering a medicament from the medicament container;
a collar axially displaceable relative to the case away from a first position;
a plunger release mechanism to release the plunger for delivering the medicament from the medicament container;
a release member arranged to operatively couple to the collar in the first position,
wherein the release member is movable relative to the case,
wherein the plunger release mechanism is configured to release the plunger for delivering the medicament from the medicament container when the release member is moved into a release position relative to the case,
wherein the collar is in the first position when the plunger is in the proximal position, and
wherein the collar is configured to be axially displaceable relative to the plunger away from the first position when the release member is moved towards and/or into the release position.