Method of making monolithic hub and strain relief

A method of manufacturing a hub assembly for a catheter tube having a lumen therethrough, comprising the step of:

• molding monolithically the hub assembly including a hub portion having a first rigidity, and a strain relief portion having a second rigidity less than the first rigidity to the catheter tube;
• the hub portion having a proximal end, a distal end, a wall, a connection disposed at the proximal end, and a lumen defined therethrough extending from the proximal end to the distal end;
• the strain relief having a proximal end, a distal end, and a wall, the strain relief being disposed at the distal end of the hub portion and the proximal end of the strain relief forming a continuous piece with the distal end of the hub portion, the strain relief defining a passage receiving the catheter tube such that the lumen through the hub portion is in fluid communication with the catheter lumen, wherein the hub portion and the strain relief portion comprise the same material;
• and
• at least one groove extending into the strain relief wall.