System and method of interrogating implanted passive resonant-ci

Details System and method of interrogating implanted passive resonant-ci System and method of interrogating implanted passive resonant-ci

1999-07-14

2000-12-26

Hindenburg, Max

Surgery

Diagnostic testing

Measuring fluid pressure in body

A61B 500

Patent

active

061651354

ABSTRACT:
A system and method for interrogating implanted passive resonant circuits is described. The resonant frequency is detected by transmitting a train of short pulses and then listening between the pulses for output of the resonant circuit. With proper spacing between the pulses, a vastly improved signal-to-noise ratio is obtained.

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