OPTIMIZING SENSOR PRESSURE IN BLOOD PRESSURE MEASUREMENTS USING A WEARABLE DEVICE

    公开(公告)号:WO2023031906A1

    公开(公告)日:2023-03-09

    申请号:PCT/IL2022/050840

    申请日:2022-08-03

    发明人: LANGE, Daniel, H.

    摘要: Systems and methods for optimizing sensor pressure in blood pressure (BP) measurements using a wearable device are provided. An example method includes recording photoplethysmogram (PPG) data using a PPG sensor of a wearable device while a pressure applied by the PPG sensor to a blood artery of a user is gradually increasing, monitoring a pulsating parameter associated with the PPG data, determining that the pulsating parameter has passed a critical value, in response to the determination, causing the increase of the pressure to stop, recording further PPG data using the PPG sensor and electrocardiogram (ECG) data using input plates of the wearable device, analyzing the further PPG data and the ECG data to determine a pulse transit time (PTT), a pulse rate (PR), and a diameter parameter, and determining, using a pre-defined model, a BP based on the PTT, the PR, and the diameter parameter.

    ERROR CORRECTION IN MEASUREMENTS OF MEDICAL PARAMETERS

    公开(公告)号:WO2023089604A1

    公开(公告)日:2023-05-25

    申请号:PCT/IL2022/051133

    申请日:2022-10-27

    发明人: LANGE, Daniel, H.

    摘要: Systems and methods for error correction in measurements of medical parameters are provided. An example method includes storing, in a database, a plurality of records, where a record of the plurality records includes a calibration parameter and a set of measurement errors corresponding to a set of values of a medical parameter of the user. The method also includes distributing the plurality of records to a plurality of groups and receiving a further record. The further record includes a further set of further measurement errors corresponding to a further set of further values of the medical parameter of a further user. The method includes selecting based on the further record, a group of the plurality of groups and determining, based on records belonging to the group, a further calibration parameter for correcting results of measurements of the medical parameter of the further user.