US 11,786,659 B2
Administration mechanism for a medicament delivery device
Anders Holmqvist, Värmdö (SE)
Assigned to SHL MEDICAL AG, Zug (CH)
Filed by SHL MEDICAL AG, Zug (CH)
Filed on Jan. 26, 2021, as Appl. No. 17/158,868.
Application 17/158,868 is a continuation of application No. 16/315,282, granted, now 10,967,128, previously published as PCT/EP2017/065820, filed on Jun. 27, 2017.
Claims priority of application No. 16179476 (EP), filed on Jul. 14, 2016.
Prior Publication US 2021/0146048 A1, May 20, 2021
Int. Cl. A61M 5/20 (2006.01); A61M 5/31 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/2033 (2013.01) [A61M 5/20 (2013.01); A61M 5/3129 (2013.01); A61M 5/3271 (2013.01); A61M 2005/2006 (2013.01); A61M 2205/18 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An administration mechanism for a medicament delivery device, where the administration mechanism comprises:
a movable sleeve comprising:
an outer surface,
a follower located on the outer surface, and
a lock extending radially from the outer surface and configured to flex radially inward;
a delivery member cover having a longitudinal axis and comprising a distal portion having a guide surface, where the delivery member cover is configured to be axially displaceable relative to the movable sleeve between a first position, a second position and a third position; and
a first resilient member that biases the delivery member cover in a proximal direction,
wherein the distal portion of the delivery member cover engages and pushes the lock radially inward as the delivery member cover moves relative to the moveable sleeve,
wherein the guide surface comprises an end face that is slidably engaged with the follower when the delivery member cover moves from the first position to the second position.