Determining a patient's posture from mechanical vibrations of the heart
First Claim
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1. A system comprising:
- an implantable medical device comprising;
a sensor operable to produce an electrical signal representative of heart sounds, the heart sounds associated with mechanical activity of a patient'"'"'s heart;
a sensor interface circuit coupled to the sensor to produce a heart sound signal; and
a controller circuit, coupled to the sensor interface circuit, wherein the controller circuit is operable to;
discriminate a posture of the patient from among a plurality of postures using the heart sound signal; and
provide an indication of the patient posture to user or process.
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Abstract
A system for determining a patient'"'"'s posture by monitoring heart sounds. The system comprises an implantable medical device that includes a sensor operable to produce an electrical signal representative of heart sounds, a sensor interface circuit coupled to the sensor to produce a heart sound signal, and a controller circuit coupled to the sensor interface circuit. The heart sounds are associated with mechanical activity of a patient'"'"'s heart and the controller circuit is operable to detect a posture of the patient from a heart sound signal.
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Citations
20 Claims
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1. A system comprising:
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an implantable medical device comprising; a sensor operable to produce an electrical signal representative of heart sounds, the heart sounds associated with mechanical activity of a patient'"'"'s heart; a sensor interface circuit coupled to the sensor to produce a heart sound signal; and a controller circuit, coupled to the sensor interface circuit, wherein the controller circuit is operable to; discriminate a posture of the patient from among a plurality of postures using the heart sound signal; and provide an indication of the patient posture to user or process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a sensor operable to produce an electrical heart sound signal representative of heart sounds associated with mechanical activity of a patient'"'"'s heart; and a controller circuit configured to; determine a change from a baseline for the heart sound signal; discriminate a posture of the patient from among a plurality of postures using the change from the baseline of the heart sound signal; and
provide an indication of the patient posture to a user or process. - View Dependent Claims (19, 20)
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Specification