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公开(公告)号：US20210307668A1
公开(公告)日：2021-10-07
申请号：US17208480
申请日：2021-03-22
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine a previous RR interval of the cardiac signal and a current RR interval of the cardiac signal based on the determined R-wave. The processing circuitry is further configured to determine a search window based on one or more of the current RR interval or the previous RR interval, determine a T-wave of the cardiac signal in the search window, and determine a QT interval based on the determined T-wave and the determined R-wave.
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公开(公告)号：US20250064391A1
公开(公告)日：2025-02-27
申请号：US18948243
申请日：2024-11-14
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Yong K. Cho , Shantanu Sarkar , Catherine R. Condie , Sean R. Landman , Leonardo Rapallini , Paul G. Krause
IPC: A61B5/00 , A61B5/0205 , A61B5/024 , A61B5/0245 , A61B5/0531 , A61B5/361
Abstract: A medical device may be configured to determine heart rates of the patient based on the cardiac signal sensed during a first period. The medical device may detect one or more sleep apnea episodes of the patient occurring during the first period. The medical device may determine whether one or more verification conditions are satisfied. Responsive to determining that the one or more verification conditions are satisfied, the medical device may measure impedances of the patient during a second period subsequent to the first period, and use impedance to the measured impedances to detect one or more sleep apnea episodes of the patient occurring during the second period.
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13.发明授权公开(公告)号：US11717208B2
公开(公告)日：2023-08-08
申请号：US16921346
申请日：2020-07-06
Applicant: Medtronic, Inc.
Inventor： John E. Burnes , Shantanu Sarkar , Gautham Rajagopal
Abstract: Techniques for triggering the storage or transmission of cardiac electrogram (EGM) signals associated with a premature ventricular contractions (PVC) include sensing a cardiac EGM signal of a patient via a plurality of electrodes, detecting a premature ventricular contraction (PVC) within the cardiac EGM signal, determining whether PVC storage criteria is met, in response to a determination that the PVC storage criteria is met, storing a portion of the cardiac EGM signal associated with the PVC, and in response to a determination that the PVC storage criteria is not met, eschewing storing the portion of the cardiac EGM signal associated with the PVC.
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公开(公告)号：US11589794B2
公开(公告)日：2023-02-28
申请号：US17208480
申请日：2021-03-22
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine a previous RR interval of the cardiac signal and a current RR interval of the cardiac signal based on the determined R-wave. The processing circuitry is further configured to determine a search window based on one or more of the current RR interval or the previous RR interval, determine a T-wave of the cardiac signal in the search window, and determine a QT interval based on the determined T-wave and the determined R-wave.
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公开(公告)号：US11576606B2
公开(公告)日：2023-02-14
申请号：US17208510
申请日：2021-03-22
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine whether the R-wave is noisy. Based on the R-wave being noisy, the processing circuitry is configured to determine whether the cardiac signal around a determined T-wave is noisy. Based on the cardiac signal around the determined T-wave not being noisy, the processing circuitry is configured to determine a QT interval or a corrected QT interval based on the determined T-wave and the determined R-wave.
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Patent Agency Ranking
公开(公告)号：US20210307669A1
公开(公告)日：2021-10-07
申请号：US17208510
申请日：2021-03-22
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine whether the R-wave is noisy. Based on the R-wave being noisy, the processing circuitry is configured to determine whether the cardiac signal around a determined T-wave is noisy. Based on the cardiac signal around the determined T-wave not being noisy, the processing circuitry is configured to determine a QT interval or a corrected QT interval based on the determined T-wave and the determined R-wave.
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公开(公告)号：US20240206798A1
公开(公告)日：2024-06-27
申请号：US18538473
申请日：2023-12-13
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
CPC classification number: A61B5/352 , A61B5/355 , A61B5/36 , A61B5/7203 , A61B2560/02
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine whether the R-wave is noisy. Based on the R-wave being noisy, the processing circuitry is configured to determine whether the cardiac signal around a determined T-wave is noisy. Based on the cardiac signal around the determined T-wave not being noisy, the processing circuitry is configured to determine a QT interval or a corrected QT interval based on the determined T-wave and the determined R-wave.
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公开(公告)号：US11918367B2
公开(公告)日：2024-03-05
申请号：US18164759
申请日：2023-02-06
Applicant: Medtronic, Inc.
Inventor： Gautham Rajagopal , Shantanu Sarkar
CPC classification number: A61B5/352 , A61B5/355 , A61B5/36 , A61B5/7203 , A61B2560/02
Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine an R-wave of the cardiac signal and determine whether the R-wave is noisy. Based on the R-wave being noisy, the processing circuitry is configured to determine whether the cardiac signal around a determined T-wave is noisy. Based on the cardiac signal around the determined T-wave not being noisy, the processing circuitry is configured to determine a QT interval or a corrected QT interval based on the determined T-wave and the determined R-wave.
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19.发明公开公开(公告)号：US20230346287A1
公开(公告)日：2023-11-02
申请号：US18348040
申请日：2023-07-06
Applicant: Medtronic, Inc.
Inventor： John E. Burnes , Shantanu Sarkar , Gautham Rajagopal
Abstract: Techniques for triggering the storage or transmission of cardiac electrogram (EGM) signals associated with a premature ventricular contractions (PVC) include sensing a cardiac EGM signal of a patient via a plurality of electrodes, detecting a premature ventricular contraction (PVC) within the cardiac EGM signal, determining whether PVC storage criteria is met, in response to a determination that the PVC storage criteria is met, storing a portion of the cardiac EGM signal associated with the PVC, and in response to a determination that the PVC storage criteria is not met, eschewing storing the portion of the cardiac EGM signal associated with the PVC.
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公开(公告)号：US20220346667A1
公开(公告)日：2022-11-03
申请号：US17306372
申请日：2021-05-03
Applicant: Medtronic, Inc.
Inventor： Bruce D. Gunderson , Gautham Rajagopal
Abstract: This disclosure is directed to techniques for recording and recognizing physiological parameter patterns associated with symptoms. A medical device system includes a medical device including an accelerometer configured to collect an accelerometer signal that indicates one or more patient movements that occur during a cough. Additionally, the medical device system includes processing circuitry configured to: determine whether the accelerometer signal satisfies a set of criteria corresponding to a cough pattern comprising a smooth increase from a baseline, then a sharp decrease, a peak within the sharp decrease, then a gradual return to the baseline; and identify a cough based on the determination that the accelerometer signal satisfies the set of criteria.
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