Abstract: In various embodiments, a tilt-wing aircraft includes a fuselage; a first wing tiltably mounted at or near a forward end of the fuselage; and a second wing rotatably mounted to the fuselage at a position aft of the first wing. A first plurality of rotors is mounted on the first wing at locations on or near a leading edge of the first wing, with two or more rotors being mounted on wing portions on each side of the fuselage; and a second plurality of rotors mounted on the second wing at locations on or near a leading edge of the second wing, with two or more rotors being mounted on wing portions on each side of the fuselage. A flight control system generates a set of actuators and associated actuator parameters to achieve desired forces and moments.

Abstract: An aid in the percutaneous navigation through chronic total occlusions by imaging of the vasa vasorum is provided. A cavity is established in a vessel proximal to the occlusion of interest. Once the cavity is established, fluid is introduced into the cavity. The fluid is introduced under a pressure that is sufficient enough to drive the fluid into the vasa vasorum that is accessible from the cavity. An image is taken with an imaging means of the fluid filled cavity and vasa vasorum. This image is used as a visual aid for a physician to visualize the path/curvature of the vessel. With this visualization, the physician would be able to navigate a medical instrument through an occlusion. In addition, this visualization would aid the physician to open the occlusion and therewith promote blood flow in vessel, for instance, by expanding open, stenting open, or cutting away part of the occlusion.