Abstract: A method of turning a medical device, having a magnetically responsive element associated with its distal end, at an operating point within an operating region inside a patient's body from an initial direction to a desired final direction, through the movement of at least one external source magnet. The at least one external source magnet is moved in such a way as to change the direction of the distal end of the magnetic medical device from the initial direction to the desired final direction without substantial deviation from the plane containing the initial direction and the desired final direction.

Abstract: A VOR flight instructional aid and methods for its use are described herein. Said instructional aid comprises a base, a course indicator arm pivotably connected to said base, and a physical representation of an aircraft connected to the end of the course indicator arm. Said instructional aid may further comprise an OBS/CDI indicator disk pivotably connected to the base for illustrating the approximate appearance of a CDI display resulting from various combinations of aircraft position and OBS setting. Said instructional aid may be used by: 1) placing the base on a flight navigation chart; 2) substantially aligning the pivot point of the course indicator arm above the position of the desired VOR station on the chart; and 3) rotating the course indicator arm to an OBS-selected radial, thereby physically representing the aircraft position relative to the VOR station.

Abstract: An aviation training aid to facilitate the learning of instrument flying techniques. Primarily designed for the application of wind drift problems associated with tracking a straight course over the ground which making an NDB (non-directional beacon) instrument landing approach. This device includes a model airplane that rotates freely through 360 degrees with a compass azimuth card pointer and ADF (automatic direction finding) card rotating on the same axis. The compass azimuth card is controlled by a vertical shaft or handle placed through the center axis, enabling the user to keep the pointer oriented to designated north while reading the airplane's heading in the cutout provided in the airplane's nose (this is the simulated magnetic heading of the aircraft). The wingtip and reciprocal bearings are also provided through cutouts string, simulating the direct bearing to the NDB radio station is also connected from the center post to the designated NDB radio station (push pin).

Abstract: A design and evaluation system is disclosed which enables the computer generation of graphic displays and symbology used in the design of electronic instrument displays. The graphics and symbology may be positioned, rearranged, altered, and replaced with other graphics or symbology representative of that used in the intended instrument. The display may then be dynamically tested in accordance with programmed or selected manual inputs to determine the aesthetic and functional interactions between symbols or groups of symbols and to evaluate their acceptability in their intended environment. The proposed display may be repeatedly updated, altered and modified during testing until a final version has been selected for the instrument display.