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US 7,559,901 B2Granted
Determining a patient's posture from mechanical vibrations of the heart
AssigneeCardiac Pacemakers, Inc.
InventorsKeith R. Maile, Krzysztof Z. Siejko
Life of this patent
Estimating the term…
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.
Claims20
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.
5 more elements
A system comprising:
- 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.
3 more elements
Dependencies are inferred from the claim text.