US 12,274,873 B1
Medicament delivery device
Alexander Hee-Hanson, Melbourn (GB); Thomas Lever, Melbourn (GB); Michael Parrott, Melbourn (GB); and Robert Wilson, Melbourn (GB)
Assigned to Genzyme Corporation, Cambridge, MA (US)
Filed by Genzyme Corporation, Cambridge, MA (US)
Filed on Mar. 4, 2024, as Appl. No. 18/594,556.
Int. Cl. A61M 5/32 (2006.01); A61M 5/20 (2006.01)
CPC A61M 5/3234 (2013.01) [A61M 5/3245 (2013.01); A61M 5/2033 (2013.01); A61M 2005/208 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A medicament delivery device comprising:
a needle for injecting medicament, the needle disposed at a distal end of the medicament delivery device;
a body configured to receive a syringe;
a needle cover axially movable relative to the body between an extended position, in which a distal end of the needle cover is distal to a distal end of the needle, and a retracted position, in which the distal end of the needle is distal to the distal end of the needle cover;
a plunger axially movable relative to the body from a proximal position to a distal position to dispense a medicament from the medicament delivery device;
a needle cover biasing mechanism configured to bias the needle cover distally from the retracted position to the extended position; and
a locking mechanism configured to be moved by the plunger from an initial configuration to an engaged configuration to limit a distal movement of the needle cover biasing mechanism relative to the body.