Becton Dickinson and Company Limited

Steve Beguin

Marko Frederik Plevnik

Nathan Lyell

David James Coleman

Patrick Le Gal Redon

Danielle Aboud

John Adams

Maurice Curtin

Sean McGrath

Harry Robert Lester

A needle hub for a drug delivery device includes 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 catheter 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, and a cannula spring biasing the catheter holder to a retracted position. Movement of the activation button is configured to cause the needle holder and the catheter holder to move from the retracted position to the insertion position, with the needle holder configured to return to the retracted position while the catheter holder remains in the insertion position.

Needle hub for drug delivery device

A needle hub for a drug delivery device includes 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. The lock member is moved from the first position to the second position based on a pressure within the pressure interlock.

Needle hub with pressure interlock for drug delivery device

A needle hub for a drug delivery device includes a hub body, an activation button, a needle holder moveable relative to the hub body, a needle attached to the needle holder, a needle spring biasing the needle holder to a retracted position where the needle is positioned within the hub body, a cannula holder moveable relative to the hub body and the needle holder, a cannula attached to the cannula holder, with the cannula configured to be in fluid communication with a fluid source, and a cannula spring biasing the cannula holder to a retracted position. Movement of a portion of the hub body is configured to disengage a connection between the cannula holder and the hub body to allow the cannula holder to return to the retracted position.

Capillary-based pressure threshold sensors are provided for liquids that exploit the properties of hydrophobic, superhydrophobic, oleophobic and amphiphobic porous membranes to detect when fluid passes through the membrane in the event of the pressure across the membrane rising above the breakthrough pressure of a fluid. Example implementations are provided of different configurations for a capillary-based pressure threshold sensor, and of how a capillary-based pressure threshold sensor is used in a medication delivery device or other fluid delivery devices to detect occlusion or other fluid flow condition.

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Rathdrum, Ireland

Steve Beguin