Determining different sleep stages in a wearable medical device patient
Summary
USPTO granted patent US12588827B2 to ZOLL Medical Corporation for a patient monitoring device that uses ECG and motion sensors to determine sleep stages and adjust cardiac arrhythmia detection parameters accordingly. The device differentiates between immobilized and non-immobilized sleep states to optimize monitoring modes. The patent covers 16 claims filed under Application No. 17907650.
What changed
USPTO granted patent US12588827B2 to ZOLL Medical Corporation (inventors: Gary A. Freeman, Shane S. Volpe) for a patient monitoring system that determines sleep stages using ECG electrodes and motion sensors. The processor derives motion and ECG parameters from the sensors, classifies whether the patient is in an immobilized or non-immobilized sleep state, and adjusts cardiac arrhythmia detection parameters accordingly to operate in optimized monitoring and treatment modes.
Patent grants do not impose compliance obligations on third parties. Legal and R&D teams at medical device manufacturers should review the patent claims to assess potential infringement risks if developing similar sleep-stage-aware cardiac monitoring technology. No immediate action is required, though companies with competing products may wish to consult patent counsel regarding design-arounds or licensing options.
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Mar 31, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Determining different sleep stages in a wearable medical device patient
Grant US12588827B2 Kind: B2 Mar 31, 2026
Assignee
ZOLL Medical Corporation
Inventors
Gary A. Freeman, Shane S. Volpe
Abstract
A patient monitoring device configured to monitor cardiac activity and sleep stage information of a patient is provided. The device includes a plurality of electrodes to acquire electrocardiogram (ECG) signals from the patient, at least one motion sensor configured to generate a motion signal based upon movement of the patient, and at least one processor. The processor is configured derive motion parameters from the motion signal, derive ECG parameters from the ECG signals, determine whether the patient is in an immobilized sleep stage or a non-immobilized sleep stage based upon the motion parameters and the ECG parameters, adjust one or more cardiac arrhythmia detection parameters such that the device operates in a first monitoring and treatment mode when the patient is in an immobilized sleep stage, and monitor the patient for the cardiac arrhythmia using the first monitoring and treatment mode.
CPC Classifications
A61B 5/0205 A61B 5/02405 A61B 5/361 A61B 5/4812 A61B 5/7275 A61N 1/3625 A61N 1/36521 A61N 1/36578 A61N 1/36585 A61N 1/3702 A61N 1/3904
Filing Date
2021-03-26
Application No.
17907650
Claims
16
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