US 11,986,638 B2
Safety mechanism for a medicament delivery device and a medicament delivery device comprising the same
Stephan Olson, Danderyd (SE)
Assigned to SHL Medical AG, Zug (CH)
Filed by SHL MEDICAL AG, Zug (CH)
Filed on Aug. 2, 2021, as Appl. No. 17/391,863.
Application 17/391,863 is a continuation of application No. 16/070,615, granted, now 11,141,533, previously published as PCT/EP2017/051159, filed on Jan. 20, 2017.
Claims priority of application No. 1650247-8 (SE), filed on Feb. 24, 2016.
Prior Publication US 2021/0361873 A1, Nov. 25, 2021
Int. Cl. A61M 5/32 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/31 (2013.01) [A61M 5/326 (2013.01); A61M 2005/3143 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medicament delivery device comprising:
a medicament delivery member sleeve having a distal end and a proximal end;
a housing having a longitudinal axis and a proximal opening arranged to slidably receive the medicament delivery member sleeve;
a flange positioned at the proximal end of the medicament delivery member sleeve, where the flange comprises a distally directed radially flexible arm having an inner surface that abuts an outside surface of the housing adjacent the proximal opening;
a container driver slidably positioned within the housing and having a locked position and a released position; and
a driver locking member axially fixed relative to the housing and operationally engaged with the distal end of the medicament delivery member sleeve,
wherein the container driver is maintained in the locked position by engagement with the driver locking member,
wherein the medicament delivery member sleeve is axially displaceable inside and relative to the housing between an extended position and a retracted position, and
wherein movement of the medicament delivery member sleeve from the extended position to the retracted position causes the driver locking member to rotate which allows the container driver to move from the locked position to the released position.