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US 9,955,913 B2Granted
Cardiac monitoring system
AssigneeZOLL Medical Corporation
InventorsGary A Freeman, Mark Totman
Life of this patent
Estimating the term…
Abstract
A cardiac monitoring system including a long term ECG monitoring unit configured to be supported by the patient for long periods of time, including a power source, one or more electrodes electrically attached to the long term ECG monitoring unit and configured to be worn by the patient for extended periods of time, circuitry for receiving an ECG signal of the patient via the electrodes, and at least one processor operatively coupled to the circuitry for monitoring the ECG signal of the patient.
Claims27
A cardiac monitoring system for monitoring a cardiac condition of a patient, comprising:
- a long term ECG monitoring unit configured to be supported by the patient for up to 30 days comprising:
- a power source;
- one or more electrodes electrically attached to the long term ECG monitoring unit and configured to be worn by the patient for up to 30 days;
- circuitry for receiving an ECG signal of the patient via the one or more electrodes;
- and
- at least one processor operatively coupled to the circuitry for monitoring the ECG signal of the patient, the at least one processor configured to:
- analyze the ECG signal of the patient, wherein the analyzing comprises
- determining one or more intervals between adjacent R waves of QRS complexes in the ECG signal of the patient;
- analyzing the ECG signal for additional one or more cardiac parameters separate from the adjacent R waves of QRS complexes in the ECG signal;
- and
- calculating a heart rate variability based on the determined one or more intervals between adjacent R waves of the QRS complexes in the ECG of the patient;
- and
- determine a risk probability of an impending cardiac event in the patient occurring within 24 hours based at least in part on the heart rate variability and the additional one or more cardiac parameters,
- wherein if the risk probability exceeds a threshold value indicative of the impending cardiac event in the patient occurring within 24 hours, at least one of issue a prompt to the patient and communicate with a remote medical response system concerning an early warning of a heightened risk of the impending cardiac event in the patient within 24 hours.
11 more elements
A cardiac monitoring system for monitoring a cardiac condition of a patient, comprising:
- a first unit comprising a long term ECG monitoring unit configured to be supported by the patient for up to 30 days comprising:
- a power source;
- one or more electrodes electrically attached to the long term ECG monitoring unit and configured to be worn by the patient for up to 30 days;
- circuitry for receiving an ECG signal of the patient via the one or more electrodes;
- and
- at least one processor electrically coupled to the circuitry for monitoring the ECG signal of the patient, the at least one processor configured to:
- analyze the ECG signal of the patient, wherein the analyzing comprises
- determining one or more intervals between adjacent R waves of QRS complexes in the ECG signal of the patient;
- analyzing the ECG signal for additional one or more cardiac parameters separate from the adjacent R waves of QRS complexes in the ECG signal;
- calculating a heart rate variability based on the determined one or more intervals between adjacent R waves of the QRS complexes in the ECG of the patient;
- and
- determining a risk probability of an impending cardiac event in the patient occurring within 24 hours based at least in part on the heart rate variability and the additional one or more cardiac parameters,
- wherein if the risk probability exceeds a threshold value indicative of an impending cardiac event in the patient occurring within 24 hours, at least one of issue a prompt to the patient and communicate with a remote medical response system concerning an early warning of a heightened risk of the impending cardiac event in the patient within 24 hours;
- and
- a second unit detachably and communicably coupled to the first unit, wherein the second unit is configured to be worn by the patient.
12 more elements
A cardiac monitoring method for monitoring a cardiac condition of a patient by a long term ECG monitoring unit, comprising:
- providing a long term ECG monitoring unit configured to be supported by the patient for up to 30 days;
- receiving an ECG signal of the patient via one or more electrodes electrically attached to the long term ECG monitoring unit, wherein the one or more electrodes and the long term ECG monitoring unit are configured to be worn by the patient for up to 30 days;
- determining one or more intervals between adjacent R waves of QRS complexes in the ECG signal of the patient;
- analyzing the ECG signal for additional one or more cardiac parameters separate from the adjacent R waves of QRS complexes in the ECG signal;
- calculating a heart rate variability based on the determined one or more intervals between adjacent R waves of the QRS complexes in the ECG of the patient;
- and
- determining a risk probability of an impending cardiac event in the patient occurring within 24 hours based at least in part on the heart rate variability and the additional one or more cardiac parameters,
- wherein if the risk probability exceeds a threshold value indicative of the impending cardiac event in the patient occurring with 24 hours, at least one of issue a prompt to the patient and communicate with a remote medical response system concerning an early warning of a heightened risk of the impending cardiac event in the patient within 24 hours.
5 more elements
Dependencies are inferred from the claim text.