Connector assemblies

A connector assembly comprising:

• a delivery conduit defining a lumen extending between a proximal end and a distal end,
• a tube positioned within the lumen of the delivery conduit and defining a conduit lumen, and
• a securable connector configured to secure the delivery conduit to a medical device hub defining a medical device hub lumen and an internal surface, wherein:
• the conduit lumen comprises a constant diameter region along a portion of the delivery conduit between the proximal end and the distal end and a transition region from the delivery conduit to the distal end, wherein:
• a leading edge of the transition region is obliquely angled relative to a longitudinal axis of the conduit lumen
• a transition region diameter of the transition region increases from the constant diameter region to the distal end of the delivery conduit, such that the transition region has a bell shaped taper and the transition region diameter is configured to be approximately equal to a diameter of the medial device hub lumen at a position where the transition region engages the medical device hub;
• the securable connector is coupled to an outer surface of the delivery conduit and is slidable along a portion thereof;
• the securable connector is configured to receive the medical device hub such that the medical device hub is positioned between the surface of the delivery conduit and the securable connector;
• and
• the securable connector is secured relative to the delivery conduit so as to fluidically couple the conduit lumen with the medical device hub lumen.