Insertable sensor assembly having a coupled inductor communicative system
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United States of America Patent
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N/A
Issued Date -
Feb 17, 2005
app pub date -
Aug 14, 2003
filing date -
Aug 14, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A sensing system for determining the concentration of an analyte inside an animal body. The system includes an in vivo portion that is adapted to reside inside the animal body and that includes a sensing element that produces a sensing signal. In addition, a wearable ex vivo portion is physically attached to the in vivo portion. The ex vivo portion includes a first inductor that is adapted to receive a varying electro-magnetic signal and that has a pair of terminals. A variable load assembly presents a load across the pair of terminals and varies the load in response to the sensing signal. Also, an electronic monitoring unit is physically separate from the ex vivo portion and includes a second inductor, which is magnetically coupled to the first inductor and is adapted to transmit a varying electro-magnetic signal and to detect changes in load across the terminals of the first inductor.
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