System and method for in situ trimming of oscillators in a pair of implantable medical devices
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United States of America Patent
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Oct 18, 2011
Grant Date -
Jul 9, 2009
app pub date -
Jan 7, 2009
filing date -
Jan 7, 2008
priority date (Note) -
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Abstract
A system and method for in situ trimming of oscillators in a pair of implantable medical devices is provided. Each frequency over a range of oscillator trim frequencies for an initiating implantable medical device is selected and a plurality of commands are sent via an acoustic transducer in situ over the frequency selected. Each frequency over a range of oscillator trim frequencies for a responding implantable medical device is selected and a response to each of the commands received is sent via an acoustic transducer in situ over the frequency selected. The responses received by the initiating implantable medical device are evaluated and a combination of the oscillator trim frequencies for both implantable medical devices that together exhibit a strongest acoustic wave is identified. Oscillators in both implantable medical devices are trimmed to the oscillator trim frequencies in the combination identified.
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