US 12,403,248 B2
Needle hub for drug delivery device
David James Coleman, Shankill (IE); Steve Beguin, Rathdrum (IE); Patrick Le Gal Redon, Seyssinet-Pariset (FR); Marko Plevnik, London (GB); and Nathan Lyell, Woking (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. 17/569,187.
Claims priority of provisional application 63/134,054, filed on Jan. 5, 2021.
Prior Publication US 2022/0211939 A1, Jul. 7, 2022
Int. Cl. A61M 5/142 (2006.01); A61M 5/158 (2006.01); A61M 5/162 (2006.01)
CPC A61M 5/14248 (2013.01) [A61M 5/14244 (2013.01); A61M 5/158 (2013.01); A61M 5/162 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/14256 (2013.01); A61M 2005/1426 (2013.01); A61M 2005/1585 (2013.01); A61M 2005/1586 (2013.01); A61M 2005/1587 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A needle hub for a drug delivery device comprising:
a hub body;
an activation button;
a needle holder and a needle attached to the needle holder;
a cannula holder and a cannula attached to the cannula holder;
a needle actuation mechanism configured to move the needle holder and the cannula holder from a retracted position to an insertion position and configured to move the needle holder back to the retracted position, the needle actuation mechanism comprising a cam track, a cam member received within the cam track, and a torsion spring, the torsion spring biasing the cam member relative to the cam track; and
a cannula spring biasing the cannula holder to the retracted position,
wherein movement of the activation button is configured to cause the needle holder and the cannula holder to move from the retracted position to the insertion position, with the needle holder configured to return to the retracted position while the cannula holder remains in the insertion position,
wherein the hub body comprises a cannula lock configured to lock the cannula holder in the insertion portion, the needle hub further comprising an adhesive pad configured to secure the hub body to a skin surface of a person, and the adhesive pad comprising a removal tab, wherein movement of the removal tab is configured to disengage the cannula lock and the hub body to allow the cannula holder to return to the retracted position, and
wherein the cannula lock is biased away from the cannula holder via a lock spring, and wherein the hub body comprises a hinged portion, the hinged portion configured to rotate upon movement of the removal tab and disengage from the cannula lock.