A catheter loading device includes a guidewire section, a catheter section, and a hinge that connects a proximal end of the guidewire section to a distal end of the catheter section. The guidewire section is rotatable relative to the catheter section about a rotation axis between a first position and a second position. When the guidewire section is in the first position, a longitudinal axis of a guidewire positioned in a channel of the guidewire section is aligned with a longitudinal axis of a lumen of a catheter positioned in a receiver of the catheter section. When the guidewire section is in the second position, the longitudinal axis of the guidewire positioned in the channel is not aligned with the longitudinal axis of the lumen of the catheter positioned in the receiver.