公开(公告)号：US20220193419A1

公开(公告)日：2022-06-23

申请号：US17690723

申请日：2022-03-09

Applicant: Medtronic, Inc.

Inventor： Shantanu Sarkar ,  Douglas A. Hettrick ,  Amul Y. Desai ,  Randolph M. Biallas ,  Holly S. Vitense ,  Jodi L. Redemske

IPC: A61N1/365 ,  A61B5/024 ,  A61B5/0245 ,  A61B5/00 ,  A61B5/0537 ,  G16H50/20 ,  G16H50/30 ,  A61B5/349 ,  A61B5/0538 ,  A61N1/362 ,  A61M5/142 ,  A61M5/172 ,  A61N1/39

Abstract: Techniques for using multiple physiological parameters to provide an early warning for worsening heart failure are described. A system is provided that monitors a multiple diagnostic parameters indicative of worsening heart failure. The parameters preferably include are least one parameter acquired from an implanted device, such as intrathoracic impedance. The system device derives an index of the likelihood of worsening heart failure based upon the parameters using a Bayesian approach and displays the resultant index for review by a physician.

公开(公告)号：US20220000421A1

公开(公告)日：2022-01-06

申请号：US16918555

申请日：2020-07-01

Applicant: Medtronic, Inc.

Inventor： Ekaterina M. Ippolito ,  Shantanu Sarkar ,  Eduardo N. Warman ,  Joel R. Lauer

IPC: A61B5/00 ,  A61B5/0205 ,  G16H40/60

Abstract: This disclosure is directed to devices, systems, and techniques for determining an efficacy of a treatment program. For example, a medical device system includes a medical device including one or more sensors configured to generate a signal that indicates a parameter of a patient. Additionally, the medical device system includes processing circuitry configured to receive data indicative of a user selection of a reference time; determine a plurality of parameter values of the parameter based on a portion of the signal corresponding to a period of time including the reference time. Additionally, the processing circuitry is configured to identify, based on a first set of parameter values, a reference parameter value, calculate a parameter change value, and determine, based on the parameter change value, whether an improvement or a worsening of the patient has occurred responsive to a treatment administered beginning at the reference time.

公开(公告)号：US20210128005A1

公开(公告)日：2021-05-06

申请号：US16921346

申请日：2020-07-06

Applicant: Medtronic, Inc.

Inventor： John E. Burnes ,  Shantanu Sarkar ,  Gautham Rajagopal

IPC: A61B5/0432 ,  A61B5/04 ,  A61B5/0452 ,  A61B5/044 ,  A61B5/0456 ,  G16H50/70

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.

公开(公告)号：US10765359B2

公开(公告)日：2020-09-08

申请号：US15381815

申请日：2016-12-16

Applicant: Medtronic, Inc.

Inventor： Yong K. Cho ,  Shantanu Sarkar ,  Eduardo N. Warman

IPC: A61B5/042 ,  A61B5/00 ,  A61B5/0456 ,  A61B5/0452 ,  A61N1/39 ,  A61N1/37 ,  A61B5/07

Abstract: Sensing circuitry of an implantable medical device (IMD) system may sense a cardiac signal that varies according to a cardiac cycle of a patient. Processing circuitry of the IMD system may determine a series of consecutive cardiac cycle length metric values based on the sensed cardiac signal, identify a plurality of pairs of the cardiac cycle length metrics, each of the pairs of cardiac cycle length metrics separated by an integer ‘n’ of the cardiac cycle length metrics, and construct a distribution of the pairs of cardiac cycle length metrics based on values of the cardiac cycle length metrics for each of the pairs. The processing circuitry may detect a sleep apnea episode of the patient based on one or more characteristics of the constructed distribution, and control communication circuitry of the IMD system to transmit an indication of the detected sleep apnea episode to the external computing device.

公开(公告)号：US20190350481A1

公开(公告)日：2019-11-21

申请号：US16523297

申请日：2019-07-26

Applicant: Medtronic, Inc.

Inventor： Shantanu Sarkar ,  Michael Hudziak ,  Jerry Reiland ,  Erin Reisfeld

IPC: A61B5/0464 ,  A61B5/00 ,  A61B5/042 ,  A61B5/0456 ,  A61B5/0432 ,  A61B5/04 ,  A61N1/39 ,  A61N1/365

Abstract: A system and method for detecting and verifying bradycardia/asystole episodes includes sensing an electrogram (EGM) signal. The EGM signal is compared to a primary threshold to sense events in the EGM signal, and at least one of a bradycardia or an asystole is detected based on the comparison. In response to detecting at least one of a bradycardia or an asystole, the EGM signal is compared to a secondary threshold to sense events under-sensed by the primary threshold. The validity of the bradycardia or the asystole is determined based on the detected under-sensed events.

公开(公告)号：US20180168502A1

公开(公告)日：2018-06-21

申请号：US15381815

申请日：2016-12-16

Applicant: Medtronic, Inc.

Inventor： Yong K. Cho ,  Shantanu Sarkar ,  Eduardo N. Warman

IPC: A61B5/00 ,  A61B5/042 ,  A61B5/07 ,  A61B5/0452

Abstract: Sensing circuitry of an implantable medical device (IMD) system may sense a cardiac signal that varies according to a cardiac cycle of a patient. Processing circuitry of the IMD system may determine a series of consecutive cardiac cycle length metric values based on the sensed cardiac signal, identify a plurality of pairs of the cardiac cycle length metrics, each of the pairs of cardiac cycle length metrics separated by an integer ‘n’ of the cardiac cycle length metrics, and construct a distribution of the pairs of cardiac cycle length metrics based on values of the cardiac cycle length metrics for each of the pairs. The processing circuitry may detect a sleep apnea episode of the patient based on one or more characteristics of the constructed distribution, and control communication circuitry of the IMD system to transmit an indication of the detected sleep apnea episode to the external computing device.

公开(公告)号：US09682240B2

公开(公告)日：2017-06-20

申请号：US15219595

申请日：2016-07-26

Applicant: Medtronic, Inc.

Inventor： Douglas A. Hettrick ,  Todd M. Zielinski ,  Eduardo Warman ,  Shantanu Sarkar

IPC: A61N1/365 ,  A61B5/0452 ,  A61B5/053 ,  A61N1/362 ,  A61N1/368 ,  A61N1/39 ,  A61B5/00

CPC classification number: A61N1/36521 ,  A61B5/0452 ,  A61B5/0535 ,  A61B5/7239 ,  A61N1/3627 ,  A61N1/3682 ,  A61N1/3684 ,  A61N1/3987

Abstract: Methods and/or devices are disclosed herein for monitoring cardiac impedance signal and delivering therapy to a patient's heart based upon the monitored cardiac impedance.

公开(公告)号：US20250090076A1

公开(公告)日：2025-03-20

申请号：US18729479

申请日：2023-02-10

Applicant: Medtronic, Inc.

Inventor： Shantanu Sarkar ,  Jeffrey M. Gillberg ,  Abhijit Kadrolkar ,  Sean R. Landman ,  Kevin T. Ousdigian ,  Robert W. Stadler

IPC: A61B5/363 ,  A61B5/00 ,  A61B5/287 ,  G16H50/20

Abstract: A method comprises applying, by processing circuitry of a system comprising a medical device, an ensemble of classifiers to episode data for a ventricular tachyarrhythmia episode detected by the medical device based on electrocardiogram sensed by the medical device. The method further comprises classifying, by the processing circuitry, the ventricular tachyarrhythmia episode as one of a plurality of classifications based on the application of the ensemble of classifiers to the episode data, wherein the plurality of classifications include two or more of noise, oversensing, supraventricular tachycardia, polymorphic ventricular tachycardia, monomorphic ventricular tachycardia, and ventricular fibrillation.

公开(公告)号：US12232851B2

公开(公告)日：2025-02-25

申请号：US17246331

申请日：2021-04-30

Applicant: Medtronic, Inc.

Inventor： Yong K. Cho ,  Ryan D. Wyszynski ,  Grant A. Neitzell ,  Paul G. Krause ,  Kevin T. Ousdigian ,  Paul J. DeGroot ,  Shantanu Sarkar ,  Christopher D. Koch

IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/021 ,  A61B5/053 ,  A61B5/08 ,  A61B5/11 ,  A61B5/318 ,  A61B7/00

Abstract: A system comprises processing circuitry and memory comprising program instructions that, when executed by the processing circuitry, cause the processing circuitry to: apply a first set of rules to first patient parameter data for a first determination of whether sudden cardiac arrest of a patient is detected; determine that a one or more context criteria of the first determination are satisfied; and in response to satisfaction of the context criteria, apply a second set of rules to second patient parameter data for a second determination of whether sudden cardiac arrest of the patient is detected. At least the second set of rules comprises a machine learning model, and the second patient parameter data comprises at least one patient parameter that is not included in the first patient parameter data.

公开(公告)号：US20240324970A1

公开(公告)日：2024-10-03

申请号：US18552324

申请日：2022-02-17

Applicant: Medtronic, Inc.

Inventor： Shantanu Sarkar ,  Paul G. Krause ,  Kevin T. Ousdigian ,  Paul J. DeGroot

IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/08 ,  A61B5/11 ,  A61B5/113 ,  A61B5/29 ,  A61B5/296 ,  A61B5/346 ,  A61B5/397

CPC classification number: A61B5/7282 ,  A61B5/0002 ,  A61B5/0205 ,  A61B5/1117 ,  A61B5/29 ,  A61B5/296 ,  A61B5/346 ,  A61B5/397 ,  A61B5/686 ,  A61B5/7221 ,  A61B5/7239 ,  A61B5/7285 ,  A61B5/746 ,  A61B5/747 ,  A61B5/0809 ,  A61B5/0816 ,  A61B5/113 ,  A61B2560/045 ,  A61B2560/0468 ,  A61B2562/0204 ,  A61B2562/0219

Abstract: Devices, systems, and techniques for detecting a sudden cardiac event based on respiratory parameter information. A method includes receiving periodic respiratory parameter information, where the respiratory parameter information includes respiratory effort of a patient; and determining, by the processing circuitry and based on the respiratory parameter information, whether a sudden cardiac arrest of the patient is detected.