Abstract: A catheter for crossing occlusions in vessels of a patient. The catheter has a main longitudinal axis, and includes: at least one open-bore type lumen with a distal end and a proximal end, interconnected by a main longitudinal axis, substantially parallel to the main longitudinal axis of the catheter; at least one guide-wire, accommodated within the lumen, reciprocally maneuvered along and around the main longitudinal axis of the lumen; at least one effecter having a distal end and a proximal end, the effecter having at least one active configuration and at least one inactive configuration, the proximal end of the effecter defines, in the active configuration, a volume throughout which the guide-wire penetrates the intima to perform reentry.