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US 2024/0180474 A1Published application
Cardiac acceleration based p wave window determination
AssigneeCardiac Pacemakers, Inc.
InventorsJonathan Bennett Shute, Kaylen Yeri Kang, Mojgan Goftari
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Abstract
Systems and methods are disclosed to determine a P wave window for a patient using cardiac acceleration information of the patient, including a determined time of an S4 heart sound. Correlations between an S4 template and cardiac acceleration information in an S4 window having a duration longer than the S4 template can be determined. An S4 centroid can be determined as a peak of the determined multiple correlations, and the P wave window can be determined using the determined S4 centroid and an electromechanics delay.
Claims20
A medical device system, comprising:
- a signal receiver circuit configured to receive cardiac acceleration information of a patient;
- a cardiac acceleration assessment circuit configured to:
- determine a time of an S4 of the patient using the received cardiac acceleration information of the patient;
- and
- determine a P wave window for the patient based on the determined time of the S4;
- and
- a cardiac electrical feature detection circuit configured to detect or confirm one or more cardiac electrical features using the determined P wave window.
4 more elements
A method comprising:
- receiving, using a signal receiver circuit, cardiac acceleration information of a patient;
- determining, using a cardiac acceleration assessment circuit, a time of an S4 of the patient using the received cardiac acceleration information of the patient;
- determining, using the cardiac acceleration assessment circuit, a P wave window for the patient based on the determined time of the S4;
- and
- detecting or confirming, using a cardiac electrical feature detection circuit, one or more cardiac electrical features using the determined P wave window.
2 more elements
Dependencies are inferred from the claim text.