公开(公告)号：US12137924B2

公开(公告)日：2024-11-12

申请号：US18127807

申请日：2023-03-29

Applicant: MEDTRONIC INC.

Inventor： Alan Cheng ,  Jian Cao ,  Zhongping Yang

IPC: A61B17/22 ,  A61M25/09 ,  A61N1/05 ,  A61N1/362 ,  A61N1/39 ,  A61N7/00

Abstract: A surgical method treats infections on a lead positioned at least partially within a patient's body. The surgical method includes uncoupling the lead from a pulse generator. The lead is then coupled to an ultrasound wave generator. Ultrasound waves are propagated from the ultrasound wave generator through the lead. Systems are disclosed.

公开(公告)号：US11918377B2

公开(公告)日：2024-03-05

申请号：US17152328

申请日：2021-01-19

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Arthur K. Lai ,  Laura A. Chicos ,  Paul J. DeGroot

IPC: A61B5/00 ,  A61B5/05 ,  A61B5/053 ,  A61B5/08 ,  A61B5/282 ,  A61B5/308

CPC classification number: A61B5/6804 ,  A61B5/053 ,  A61B5/0816 ,  A61B5/282 ,  A61B5/308 ,  A61B5/6843 ,  A61B5/7207 ,  A61B5/7225 ,  A61B5/725 ,  A61B2562/06

Abstract: A wearable garment and an arrangement of electrodes configured to measure bioelectrical signals from a patient. The dry electrodes are free from adhesives to hold the electrodes in place on the patient's skin. The arrangement of the electrodes may be configured to limit noise and facilitate accurate signal sensing from the patient even with some amount of relative movement between the electrodes and the patient's skin. The wearable garment may be controllable to change the amount of compression based on the sensed signals from the electrodes, and from other sensors. The garment may maintain a comfortable level of compression until processing circuitry detects a signal of interest, such as a cardiac arrhythmia, irregular respiration, or some other signal. The processing circuitry may cause the wearable garment to increase compression to improve the contact between the electrodes and the patient's skin and improve reception of the measured signals.

公开(公告)号：US20230201612A1

公开(公告)日：2023-06-29

申请号：US18178423

申请日：2023-03-03

Applicant: Medtronic, Inc.

Inventor： Randal C. Schulhauser ,  Jian Cao ,  David Probst ,  Daniel Hahn ,  Eric C. Maass ,  Patrick W. Kinzie

IPC: A61N1/39 ,  A61B5/00 ,  A61B5/021 ,  A61B5/024 ,  A61B5/08 ,  A61B5/11 ,  A61B5/145 ,  A61N1/04 ,  A61B5/369

CPC classification number: A61N1/3904 ,  A61B5/0031 ,  A61B5/021 ,  A61B5/024 ,  A61B5/08 ,  A61B5/11 ,  A61B5/14532 ,  A61B5/14542 ,  A61B5/7275 ,  A61N1/046 ,  A61B5/369

Abstract: In some examples, an apparatus configured to be worn by a patient for cardiac defibrillation comprises sensing electrodes configured to sense a cardiac signal of the patient, defibrillation electrodes, therapy delivery circuitry configured to deliver defibrillation therapy to the patient via the defibrillation electrodes, communication circuitry configured to receive data of at least one physiological signal of the patient from at least one sensing device separate from the apparatus, a memory configured to store the data, the cardiac signal, and a machine learning algorithm, and processing circuitry configured to apply the machine learning algorithm to the data and the cardiac signal to probabilistically-determine at least one state of the patient and determine whether to control delivery of the defibrillation therapy based on the at least one probabilistically-determined patient state.

公开(公告)号：US20230129026A1

公开(公告)日：2023-04-27

申请号：US18069218

申请日：2022-12-20

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Gerald P. Arne ,  Timothy A. Ebeling ,  Yanina Grinberg ,  Michael W. Heinks ,  Paul R. Solheim ,  Xusheng Zhang

IPC: A61N1/39 ,  A61N1/362 ,  A61N1/365 ,  A61N1/372

Abstract: An implantable medical device system is configured to sense cardiac events in response to a cardiac electrical signal crossing a cardiac event sensing threshold. A control circuit is configured to determine a drop time interval based on a heart rate and control a sensing circuit to hold the cardiac event sensing threshold at a threshold value during the drop time interval.

公开(公告)号：US11623102B2

公开(公告)日：2023-04-11

申请号：US16050928

申请日：2018-07-31

Applicant: Medtronic, Inc.

Inventor： Randal C. Schulhauser ,  Jian Cao ,  David Probst ,  Daniel Hahn ,  Eric C. Maass ,  Patrick W. Kinzie

IPC: A61N1/39 ,  A61B5/00 ,  A61B5/145 ,  A61N1/04 ,  A61B5/021 ,  A61B5/024 ,  A61B5/08 ,  A61B5/11 ,  A61B5/369

Abstract: In some examples, an apparatus configured to be worn by a patient for cardiac defibrillation comprises sensing electrodes configured to sense a cardiac signal of the patient, defibrillation electrodes, therapy delivery circuitry configured to deliver defibrillation therapy to the patient via the defibrillation electrodes, communication circuitry configured to receive data of at least one physiological signal of the patient from at least one sensing device separate from the apparatus, a memory configured to store the data, the cardiac signal, and a machine learning algorithm, and processing circuitry configured to apply the machine learning algorithm to the data and the cardiac signal to probabilistically-determine at least one state of the patient and determine whether to control delivery of the defibrillation therapy based on the at least one probabilistically-determined patient state.

公开(公告)号：US11369798B2

公开(公告)日：2022-06-28

申请号：US16509924

申请日：2019-07-12

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Paul J. Degroot ,  Todd J. Sheldon

IPC: A61N1/365 ,  A61N1/37 ,  A61N1/372 ,  A61B5/00 ,  A61N1/375 ,  A61B5/349 ,  A61B5/352

Abstract: An implantable medical device system includes an extracardiac sensing device and an intracardiac pacemaker. The sensing device senses a P-wave attendant to an atrial depolarization of the heart via housing-based electrodes carried by the sensing device when the sensing device is implanted outside the cardiovascular system and sends a trigger signal to the intracardiac pacemaker in response to sensing the P-wave. The intracardiac pacemaker detects the trigger signal and schedules a ventricular pacing pulse in response to the detected trigger signal.

公开(公告)号：US20210379375A1

公开(公告)日：2021-12-09

申请号：US17407534

申请日：2021-08-20

Applicant: Medtronic, Inc.

Inventor： Xusheng ZHANG ,  Jian Cao

IPC: A61N1/362 ,  A61N1/37 ,  A61B5/352 ,  A61B5/363 ,  A61N1/39 ,  A61N1/365

Abstract: Techniques are described for discriminating SVT and, in particular, rapidly conducting AF. The techniques include detecting an onset of a fast rate of ventricular events sensed from a cardiac electrical signal and detecting a pause in the fast rate of ventricular sensed events. A threshold number of ventricular event intervals required to detect a ventricular tachyarrhythmia is detected with each of the threshold number of ventricular event intervals being less than a tachyarrhythmia detection interval. Detection of the ventricular tachyarrhythmia and an electrical stimulation therapy for treating the ventricular tachyarrhythmia are withheld in response to at least the pause being detected.

公开(公告)号：US20210186406A1

公开(公告)日：2021-06-24

申请号：US17196389

申请日：2021-03-09

Applicant: Medtronic, Inc.

Inventor： Jian Cao ,  Elise Higgins

IPC: A61B5/361 ,  A61N1/39 ,  A61B5/316

Abstract: A method and medical device for determining a cardiac episode that includes sensing a cardiac signal, identifying the signal sensed during a predetermined time interval as one of a cardiac event, a non-cardiac event, and an unclassified event, determining a number of identified cardiac events, determining a number of identified unclassified events, and determining whether the cardiac episode is occuring in response to the number of identified cardiac events being greater than a cardiac event count threshold and the number of identified unclassified events being less than an unclassified event count threshold.

公开(公告)号：US20200282203A1

公开(公告)日：2020-09-10

申请号：US16879281

申请日：2020-05-20

Applicant: Medtronic, Inc.

Inventor： Mark T. Marshall ,  Jian Cao ,  Melissa G.T. Christie ,  Paul J. DeGroot ,  Vladimir P. Nikolski ,  Amy E. Thompson-Nauman

IPC: A61N1/05 ,  A61N1/39

Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.

公开(公告)号：US10507332B2

公开(公告)日：2019-12-17

申请号：US15964182

申请日：2018-04-27

Applicant: Medtronic, Inc.

Inventor： Xusheng Zhang ,  Jian Cao ,  Saul E. Greenhut ,  Robert W. Stadler

IPC: A61N1/39 ,  A61B5/0456 ,  A61B5/042 ,  A61B5/0464 ,  A61B5/00

Abstract: An extra-cardiovascular implantable cardioverter defibrillator senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal in response to each sensed R-wave. The ICD determines intervals between successively sensed R-waves and, in response to at least a predetermined number of the intervals being less than a tachyarrhythmia detection interval, analyzes at least a portion of the time segment of the second cardiac electrical signal corresponding to a most recent one of the sensed R-waves to confirm the most recent one of the R-waves. The ICD updates an unconfirmed beat count in response to the most recent one of the R-waves not being confirmed and withholds detection of a tachyarrhythmia episode in response to the unconfirmed beat count being equal to or greater than a rejection threshold.