US 12,133,975 B2
Needle hub with pressure interlock for drug delivery device
Steve Beguin, Rathdrum (IE); Patrick Le Gal Redon, Seyssinet-Pariset (FR); David James Coleman, Shankill (IE); Danielle Aboud, Dublin (IE); Sean McGrath, Artane (IE); Marko Plevnik, London (GB); Nathan Lyell, Woking (GB); and Harry Robert Lester, London (GB)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Jan. 5, 2022, as Appl. No. 17/569,208.
Claims priority of provisional application 63/134,054, filed on Jan. 5, 2021.
Prior Publication US 2022/0211936 A1, Jul. 7, 2022
Int. Cl. A61M 5/32 (2006.01); A61M 5/142 (2006.01); A61M 5/145 (2006.01); A61M 5/158 (2006.01); A61M 5/162 (2006.01); A61M 5/315 (2006.01); A61M 25/01 (2006.01)
CPC A61M 5/3293 (2013.01) [A61M 5/14248 (2013.01); A61M 5/1454 (2013.01); A61M 5/158 (2013.01); A61M 5/162 (2013.01); A61M 5/3158 (2013.01); A61M 25/0102 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/1585 (2013.01); A61M 2005/1586 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A needle hub for a drug delivery device comprising:
a needle holder and a needle attached to the needle holder;
a needle actuation assembly configured to move the needle holder from a retracted position, to an insertion position, and back to the retracted position; and
a pressure interlock comprising an inlet configured to be in fluid communication with a fluid source, an outlet in fluid communication with the needle, and a lock member, the lock member having a first position where the lock member prevents actuation of the needle actuation assembly and a second position where the lock member allows actuation of the needle actuation assembly, wherein the lock member is moved from the first position to the second position based on a pressure within the pressure interlock.