Activator attachment for blood control catheters

A catheter assembly system comprising:

• a catheter adapter having an inner lumen extending between a proximal opening of the catheter adapter and a distal end of the catheter adapter, the proximal opening of the catheter adapter having an inner diameter;
• a septum disposed within and selectively sealing the inner lumen;
• a septum activator disposed within the inner lumen at a location proximal to the septum and having a proximal opening, a distal end, and an inner lumen extending through the proximal opening of the septum activator and the distal end of the septum activator, wherein the proximal opening of the septum activator is formed by a wall, wherein the septum activator further comprises a flow diversion channel extending through the wall between the proximal opening and the distal end of the septum activator, the proximal opening of the septum activator having an inner diameter that is less than the inner diameter of the catheter adapter, the septum activator being configured to advance distally through a slit in the septum;
• and
• an activator attachment comprising:
• a body configured to attach to a proximal end of the catheter adapter;
• a probe member that extends from a distal end of the body, the probe member having an outer diameter that is less than the inner diameter of the proximal opening of the catheter adapter and greater than the inner diameter of proximal opening of the septum activator, such that the probe member is configured to insert within the proximal opening the catheter adapter;
• and
• an extension member that extends from a distal end of the probe member, the extension member having an outer diameter that is less than the inner diameter of the proximal opening of the septum activator, such that the extension member is configured to insert within the proximal opening of the septum activator such that a contact surface is formed between the distal end of the probe member and a proximal end of the extension member, the contact surface forming a distal-facing ridge that extends radially outward between the proximal end of the extension member and the distal end of the probe member, the contact surface being configured to contact a proximal end of the septum activator when the activator attachment is connected to the catheter adapter thereby forcing the septum activator distally through the septum, wherein an activator attachment lumen extends from a proximal opening formed at a proximal end of the body to a distal opening positioned at a distal end of the extension member, wherein when the extension member is inserted within the proximal opening of the septum activator such that the contact surface contacts the proximal end of the septum activator, the extension member at least partially covers the flow diversion channel.