SPATIAL CONFIGURATION OF A MOTION SENSOR IN AN IMPLANTABLE MEDICAL DEVICE
First Claim
1. A method of operation in an implantable device, the implantable device comprising a motion sensor, the method comprising:
- monitoring an output from a motion sensor along at least first and second axes;
identifying one of the first and second axes as providing less information than one or more other axes; and
at least temporarily disabling the identified axis of the motion sensor.
1 Assignment
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Accused Products
Abstract
Implantable devices having motion sensors. In some examples the a configuration is generated for the implantable device to use the motion sensor in an energy preserving mode in which one or more axis of detection of the motion sensor is disabled or ignored. In some examples the motion sensor outputs along multiple axes are analyzed to determine which axes best correspond to certain patient parameters including patient motion/activity and/or cardiac contractility. In other examples the output of the motion sensor is observed across patient movements or postures to develop conversion parameters to determine a patient standard frame of reference relative to outputs of the motion sensor of an implanted device.
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Citations
20 Claims
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1. A method of operation in an implantable device, the implantable device comprising a motion sensor, the method comprising:
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monitoring an output from a motion sensor along at least first and second axes; identifying one of the first and second axes as providing less information than one or more other axes; and at least temporarily disabling the identified axis of the motion sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operation in an implantable device configured for placement inside the heart of a patient, the implantable device comprising a motion sensor, the method comprising:
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selecting a first parameter; observing at least first and second outputs of the motion sensor, the first and second outputs relating to respective first and second axes of measurement for the motion sensor; correlating at least one of the at least first and second outputs, or a combination thereof, to the first parameter; storing a first configuration of the at least first and second outputs of the motion detector corresponding to the first parameter; applying the first configuration to outputs of the motion sensor to monitor characteristics of the first parameter. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of operation in an implantable device configured for placement inside the heart of a patient, the implantable device comprising a motion sensor, the method comprising:
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capturing a plurality of outputs of the motion sensor for at least first and second axes of the motion sensor; establishing a standard frame of reference for the patient using the outputs of the motion sensor. - View Dependent Claims (18, 19, 20)
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Specification