WALKING STICK FOR VISUALLY IMPAIRED PERSON Russian patent published in 2013 - IPC A61H3/06 A61F9/08 A45B3/04 

FIELD: medicine.

SUBSTANCE: claimed stick relates to medical equipment, in particular to devices for blind people orientation in surrounding space, and can be used in independent movement of a blind person. Walking stick contains stick with handle, in which placed are: receiving emitter, installed on walking stick with possibility of changing angle of inclination to stick axis in the plane of walking stick symmetry, unit of information processing, power source, signaler, transmitter with antenna, switching on button, pendulum switch, relay and receiver with antenna. Transmitter is made in form of successively connected setting high-frequency generator, phase manipulator, whose second inlet is connected with outlet of pseudorandom succession, and power amplifier, whose outlet is connected to transmitting antenna. Receiver is made in form of registration unit, signalisation unit and successively connected receiving antenna, high-frequency amplifier and delay line. In addition, receiver is provided with three adders, phase changer for 180° and two detectors of envelope.

EFFECT: application of invention makes it possible to increase noise immunity and reliability of alarm signal transmission due to increase of dynamic range of inlet signals and ratio signal/noise in reception of weak signals.

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