BigDig™ Balloon Crossing Catheter is intended to be used in conjunction with steerable guidewires to access discreet regions of the peripheral vasculature. lt may be used to facilitate placement and exchange of guidewires and other interventional devices and provide a conduit for the delivery of saline solutions or diagnostic therapeutic agents, A compliant balloon is mounted on the dista end to provide temporaryvascularocclusion during angiographic procedures.