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US 2026/0294280 A1Published application
Heart failure risk using mechanical activity
AssigneeMedtronic, Inc.
InventorSubham Ghosh
Life of this patent
Estimating the term…
Abstract
A heart failure risk score may be determined using one or more heart failure metrics. Each of the heart failure metrics may be generated, or determined, based on, at least, mechanical activity of a patient's heart monitored using a mechanical heart activity sensor. The mechanical heart activity sensor may include one or more of a piezoelectric sensor to monitor vibration of the heart, a motion sensor to monitor heart motion, and a microphone to monitor heart sounds.
Claims28
A device comprising:
- a mechanical heart activity sensor configured to monitor mechanical activity of a patient's heart;
- and
- a computing apparatus comprising processing circuitry and operably coupled to the mechanical heart activity sensor, the computing apparatus configured to:
- monitor mechanical activity of the patient's heart using the mechanical heart activity sensor;
- determine a plurality of heart failure metrics for one or more cardiac cycles using the monitored mechanical activity, wherein the plurality of heart failure metrics comprises an electromechanical activation time interval, a late maximum value, and an early/late ratio between the late maximum value and an early maximum value, wherein determining the plurality of heart failure metrics for each of the one or more cardiac cycles comprises:
- determining the early maximum value of the mechanical activity within an early monitoring window following a first ventricular electrical activation event;
- determining the electromechanical activation time interval based on the first ventricular electrical activation event and the early maximum value;
- determining the late maximum value of the mechanical activity within a late monitoring window preceding a second ventricular electrical activation event following the first ventricular electrical activation event;
- and
- determining the early/late ratio between the late maximum value and the early maximum value;
- and
- determine a heart failure risk score based on the determined plurality of heart failure metrics for the one or more cardiac cycles.
9 more elements
(canceled)
A system comprising:
- a remote computing apparatus comprising processing circuitry and configured to:
- receive mechanical heart activity of a patient from a mechanical heart activity sensor;
- determine a plurality of heart failure metrics for one or more cardiac cycles using received mechanical heart activity, wherein the plurality of heart failure metrics comprises an electromechanical activation time interval, a late maximum value, and an early/late ratio between the late maximum value and an early maximum value, wherein determining the plurality of heart failure metrics for each of the one or more cardiac cycles comprises:
- determining the early maximum value of the mechanical heart activity within an early monitoring window following a first ventricular electrical activation event;
- determining the electromechanical activation time interval based on the first ventricular electrical activation event and the early maximum value;
- determining the late maximum value of the mechanical heart activity within a late monitoring window preceding a second ventricular electrical activation event following the first ventricular electrical activation event;
- and
- determining the early/late ratio between the late maximum value and the early maximum value;
- and
- determine a heart failure risk score based on the determined plurality of heart failure metrics for the one or more cardiac cycles.
7 more elements
(canceled)
A method comprising:
- monitoring mechanical activity of a patient's heart from a mechanical heart activity sensor;
- determining a plurality of heart failure metrics for one or more cardiac cycles using the monitored mechanical activity, wherein the plurality of heart failure metrics comprises an electromechanical activation time interval, a late maximum value, and an early/late ratio between the late maximum value and an early maximum value, wherein determining the plurality of heart failure metrics for each of the one or more cardiac cycles comprises:
- determining the early maximum value of the mechanical activity within an early monitoring window following a first ventricular electrical activation event;
- determining the electromechanical activation time interval based on the first ventricular electrical activation event and the early maximum value;
- determining the late maximum value of the mechanical activity within a late monitoring window preceding a second ventricular electrical activation event following the first ventricular electrical activation event;
- and
- determining the early/late ratio between the late maximum value and the early maximum value;
- and
- determine a heart failure risk score based on the determined plurality of heart failure metrics for the one or more cardiac cycles.
6 more elements
Dependencies are inferred from the claim text.