Wireless patient monitoring apparatus using inductive coupling
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United States of America Patent
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Mar 16, 1999
Grant Date -
N/A
app pub date -
Nov 7, 1996
filing date -
Nov 7, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wireless patient monitoring apparatus uses low frequency inductive coupling to couple signals from a transducer to monitoring and analysis instrumentation. Signals indicative of physiological functions are modulated onto a low frequency carrier and output from a self-contained portable transducer assembly via a transducer coil. A corresponding receiver coil receives the signals by electromagnetic induction. The received signals are demodulated and processed by instrumentation coupled to the receiver coil. A mattress pad containing the receiver coil is also disclosed. In a fetal monitor implementation, both wireless ultrasound and tocodynamometer transducers are provided.
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Family
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