Exceptionally crisp infrared images are provided by a binocular infrared imaging system for close in focusing that simultaneously directs the center lines of the optical channels to a close in point while at the same time providing auto focusing. There are enclosed at least two substances having different states andor masses, whereof at least one visible interface physically represents sight markers, when the device is positioned in the peripheral visual field of one eye or both eyes of the user. The introducer catheter is maneuvered through the femoral artery to the aorta and positioned at the branch of a renal artery. Together, the interface surfaces, sensing device and computer system are capable of effecting purchasing transactions over a network.