Implantable pressure sensors and methods for making and using them
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 20, 2004
Grant Date -
Apr 18, 2002
app pub date -
Jun 21, 2001
filing date -
Oct 16, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
An implant includes a pressure sensor, a controller for acquiring pressure data from the sensor, and an acoustic transducer for converting energy between electrical energy and acoustic energy. A capacitor is coupled to the acoustic transducer for storing electrical energy converted by the transducer and/or for providing electrical energy to operate the implant. The acoustic transducer may operate alternatively or simultaneously as an energy exchanger or an acoustic transmitter. During use, the implant is implanted within a patient's body, and an external transducer transmits a first acoustic signal into the patient's body, to energize the capacitor. The implant then obtains pressure data, and transmits a second acoustic signal to the external transducer, the second acoustic signal including the pressure data.
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