Abstract: A cannula system for cannulating a blood vessel comprising a collet comprising at least a first collet wing and a second collet wing and defining a collet lumen, where each of the first collet wing and the second collet wing define a distal end and a proximal end; a cannula positioned within the collet lumen; a latch defined on the distal end of the first collet wing; and a coupler defined on the distal end of the second collet wing and configured to couple to the latch of the first collet wing, thereby securing the first collet wing to the second collet wing.