Patent ID: 7848810

Claim:
In an implantable system, a method for improving the accuracy of an implantable sensor that is sensitive to at least one of body position and body movement, the method comprising: (a) using a first implantable sensor to obtain a sensor signal indicative of a parameter of interest that is used for at least one of monitoring and feedback, where the first implantable sensor is sensitive to at least one of body position and body movement; (b) using at least one further implantable sensor to detect at least one of body position and body movement; (c) determining, based on the at least one of body position and body movement detected by the at least one further implantable sensor, an extent to which to filter and/or otherwise process the sensor signal obtained using the first implantable sensor; wherein the determining of the extent to which to filter and/or otherwise process the sensor signal includes determining whether a first or a second level of filtering and/or otherwise processing of the sensor signal is to be performed, where the second level of filtering and/or otherwise processing requires a greater amount of power consumption than the first level of filtering and/or otherwise processing; (d) filtering and/or otherwise processing the sensor signal obtained using the first implantable sensor to the extent determined at step (c), wherein at least some of the time step (d) produces a modified version of the sensor signal from the first implantable sensor; and (e) using the sensor signal resulting from step (d) for at least one of monitoring and feedback, wherein at least some of the time step (e) includes using the modified version of the sensor signal resulting from step (d) for at least one of monitoring and feedback.