Becton, Dickinson and Company
Needle Hub and Applicator for Drug Delivery Device

Abstract:

A needle hub for a drug delivery device includes an applicator having a needle holder, a needle attached to the needle holder, a needle retraction spring, and an activation button, and a hub body including a cannula holder, a cannula attached to the cannula holder, a cannula withdrawal button, and a cannula retraction spring. At least a portion of the hub body is configured to be received within the applicator, with the applicator configured to be separated from the hub body. Movement of the activation button is configured to move the needle holder and the cannula holder from a retracted position to an insertion position. The cannula withdrawal button locks the cannula holder in the insertion position against a biasing force of the cannula retraction spring when the cannula holder is moved from the retracted position to the insertion position.