Low power consumption implantable pressure sensor
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United States of America Patent
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Mar 30, 2004
Grant Date -
May 29, 2003
app pub date -
Feb 15, 2002
filing date -
Nov 29, 2001
priority date (Note) -
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Abstract
Pressure-measuring apparatus is provided, including a battery and a pressure transducer. The pressure transducer is adapted to be placed in a patient, and has a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f. A control unit is adapted to actuate the battery to drive current through the pressure transducer for a current-driving time period less than 0.5 p, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
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