Crossing occlusions in blood vessels

An apparatus for vascular treatment, comprising:

• an orienting device including:
• a shaft having a proximal portion and a distal portion, the distal portion defining a central longitudinal axis;
• a lumen extending longitudinally through the shaft;
• and
• an expandable orienting element secured to the distal portion of the shaft, the expandable orienting element including a first balloon and a second balloon;
• and
• a reentry device movably disposed within the lumen, the reentry device including a body portion self-biased toward a bent configuration;
• wherein the body portion of the reentry device includes a bend near a distal end of the reentry device in the bent configuration;
• wherein the distal portion of the shaft includes:
• a first aperture extending through a wall of the shaft, the first aperture being configured to allow the distal end of the reentry device to at least partially exit the lumen in a first direction away from the central longitudinal axis;
• a second aperture extending through the wall of the shaft, the second aperture being configured to allow the distal end the reentry device to at least partially exit the lumen in a second direction away from the central longitudinal axis, wherein the second direction is different from the first direction;
• wherein the first direction and the second direction are both disposed within a first plane containing the central longitudinal axis;
• wherein the first aperture is disposed between a proximal end of the expandable orienting element and a distal end of the expandable orienting element;
• wherein the first aperture is disposed laterally between the first balloon and the second balloon;
• wherein the lumen is a guidewire lumen extending through a distal tip of the shaft across the central longitudinal axis.