Tube support for blood extraction device

A blood extraction device for use with a peripheral intravenous catheter (PIVC), the blood extraction device comprising: a catheter having a proximal end, a distal end, and a sidewall between the proximal end and the distal end thereby defining a lumen; a secondary catheter having a proximal end, a distal end, and a sidewall therebetween defining a lumen; an introducer having a proximal end, a distal end, and a sidewall between the proximal end and the distal end, thereby defining an interior space configured to movably receive a catheter; and an actuator movably coupled to the introducer. The actuator has a first portion disposed outside the introducer and a second portion disposed in the interior space of the introducer. The second portion of the actuator has a body having a first height and an extension having a second height, where the second height is less than the first height. The body and the extension define an opening, and the conduit and the secondary conduit are attached to the actuator and in flu