US 11,730,883 B2
Time delay mechanism for a hydraulic drug delivery device
Christopher Gregory, Hopkinton, MA (US); and Geoffrey Jenkins, Dartmouth, MA (US)
Assigned to MannKind Corporation, Danbury, CT (US)
Filed by MannKind Corporation, Danbury, CT (US)
Filed on Feb. 11, 2022, as Appl. No. 17/670,262.
Application 17/670,262 is a continuation of application No. 16/615,150, granted, now 11,278,667, previously published as PCT/US2018/038518, filed on Jun. 20, 2018.
Claims priority of provisional application 62/522,649, filed on Jun. 20, 2017.
Prior Publication US 2022/0160959 A1, May 26, 2022
Int. Cl. A61M 5/142 (2006.01); A61M 5/145 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/14248 (2013.01) [A61M 5/145 (2013.01); A61M 5/32 (2013.01); A61M 2005/14252 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A medicament delivery device comprising:
a housing;
a medicament chamber configured to hold a medicament;
a plunger configured to move relative to the medicament chamber to expel the medicament from the medicament chamber;
a pin configured to move from a first pin position wherein the pin prevents movement of the plunger to a second pin position wherein the pin allows movement of the plunger;
an actuation assembly detachably coupled to the housing and configured to move the pin from the first pin position to the second pin position after a time delay and while the actuation assembly remains coupled to the housing, wherein the time delay is set by the actuation assembly; and
a needle coupled to the medicament chamber, wherein the medicament flows through the needle from the medicament chamber to a user;
wherein the housing is configured to receive at least a portion of the medicament chamber, the plunger, and the pin,
wherein the actuation assembly comprises:
an adapter coupled to the pin; and
an activator configured to move the adapter from a first adapter position to a second adapter position, thereby moving the pin from the first pin position to the second pin position.