US 12,434,008 B1
Lock ring for a medicament delivery device
Alexander Hee-Hanson, Melbourn (GB); Thomas Lever, Melbourn (GB); Michael Parrott, Melbourn (GB); Robert Wilson, Melbourn (GB); and Haiming Wu, Cambridge, MA (US)
Assigned to Genzyme Corporation, Cambridge, MA (US)
Filed by Genzyme Corporation, Cambridge, MA (US)
Filed on Feb. 26, 2025, as Appl. No. 19/063,816.
Int. Cl. A61M 5/315 (2006.01)
CPC A61M 5/31571 (2013.01) [A61M 5/31565 (2013.01); A61M 5/31566 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A lock ring for a medicament delivery device, the lock ring comprising:
a hollow main body formed from a plurality of circumferentially extending portions, wherein each portion is defined between tool split lines defining circumferential ends of the portions, and each circumferential end of a portion is connected to an adjacent portion along a tool split line,
wherein the main body comprises a plurality of bearing elements configured to contact a body of the medicament delivery device,
wherein each of the plurality of bearing elements is configured to form a low friction rotation interface, and
wherein at least one of the plurality of bearing elements is formed on or proximate to one of the circumferential ends of a portion of the main body.