PULSE WIDEBAND DETECTOR Russian patent published in 2008 - IPC A61B5/08 G01S13/00 

FIELD: medical diagnostics devices.

SUBSTANCE: pulse wideband detector can be used for in radiolocation aids of diagnostics of patients' breathing parameters. Breathing control detector has control unit to form time delay; probing signal forming unit, which has coherent radio pulse oscillator; transmitting and receiving aerials; probing signal transmitter path; reflected signal receiver path with two reflected signal processing quadrature channels; processor unit providing restoration of law of motion of tested object; and data processing and presentation unit. Any quadrature channel for processing reflected signals has signal mixer, which has input connected with receiving aerial and analog-to-digital converter. Detector also has phase-shifting chain, which has input connected with probing signal forming path and output connected with second input of signal mixer of second quadrature channel for processing of reflected signal. First input of processor unit is connected with output of analog-to-digital converter of first quadrature channel for processing of reflected signal. Second input of processor unit is connected with output of analog-to-digital converter of second quadrature channel for processing of reflected signal. Output of processor unit is connected with data processing and presentation unit. Detector has also controlled electron switch. Input of switch is connected with output of probing signal forming path. First output of switch is connected with probing signal receiver's path and it second inputs connected with second input of signal mixer of first quadrature channel for processing reflected signal and with input of phase-shifting chain.

EFFECT: improved phase sensitivity of detector; ability of controlling breathing of moving patients.

7 cl, 26 dwg