FIG. 1 is a perspective view of a proximal end catheter coupling hub embodying the inventive design, understanding that the broken line showing of the hand, tube, needle, sutures, and bandage is for illustrative purposes only and forms no part of the inventive design;

FIG. 2 is a front elevation view of the proximal end catheter coupling hub of FIG. 1;

FIG. 3 is a top plan view of the proximal end catheter coupling hub of FIG. 2;

FIG. 4 is a rear elevation view of the proximal end catheter coupling hub of FIG. 2;

FIG. 5 is a bottom plan view of the a proximal end catheter coupling hub of FIG. 2;

FIG. 6 is a right elevation side view of the proximal end catheter coupling hub of FIG. 2; and,

FIG. 7 is a left elevation side view of the proximal end catheter coupling hub of FIG. 2.