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公开(公告)号：US12011278B2
公开(公告)日：2024-06-18
申请号：US16785916
申请日：2020-02-10
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Jian Cao , Yuanzhen Liu
IPC: A61B5/363 , A61B5/346 , A61B5/352 , A61N1/08 , A61N1/365 , A61N1/39 , A61N1/02 , A61N1/05 , A61N1/362 , A61N1/37
CPC classification number: A61B5/363 , A61B5/346 , A61B5/352 , A61N1/08 , A61N1/36585 , A61N1/3925 , A61N1/3956 , A61N1/3987 , A61N1/025 , A61N1/0563 , A61N1/0587 , A61N1/3621 , A61N1/3704
Abstract: An implantable cardioverter defibrillator (ICD) performs a method that includes determining whether first criteria for detecting a ventricular tachyarrhythmia are met by a cardiac electrical signal. The ICD determines features from cardiac signal segment of a group of cardiac signal segments and determines whether a first portion of the features satisfy monomorphic waveform criteria and determines whether a second portion of the features satisfy supraventricular beat criteria. The ICD determines whether second criteria for detecting the ventricular tachyarrhythmia are met and withholds detecting of the ventricular tachyarrhythmia in response to the monomorphic waveform criteria and the supraventricular beat criteria being met.
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公开(公告)号：US11801386B2
公开(公告)日：2023-10-31
申请号：US17350153
申请日：2021-06-17
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Yuanzhen Liu
CPC classification number: A61N1/3702 , A61B5/341 , A61B5/363 , A61B5/4836 , A61B5/7435 , A61N1/3625 , A61N1/39622 , A61B2560/02
Abstract: A medical device processor is configured to receive a first cardiac electrical signal sensed from a first sensing electrode vector, receive a second cardiac electrical signal sensed from a second sensing electrode vector different than the first sensing electrode vector, and construct a third cardiac electrical signal from the first cardiac electrical signal and the second cardiac electrical signal. In some examples, the system determines sensed cardiac events according to at least one setting of a cardiac event sensing threshold control parameter from at least the third cardiac electrical signal and may determine at least one acceptable setting of a sensing control parameter based on the determined sensed cardiac events. The processor may generate an output representative of the determined sensed cardiac events.
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公开(公告)号：US11931585B2
公开(公告)日：2024-03-19
申请号：US17109968
申请日：2020-12-02
Applicant: Medtronic, Inc.
Inventor： Gavin M. Mischler , Yuanzhen Liu , Saul E. Greenhut , Xusheng Zhang
CPC classification number: A61N1/3621 , A61B5/352 , A61B5/363 , A61N1/365 , A61N1/3704 , A61N1/3706
Abstract: A medical device is configured to detect an alternating pattern of signal features determined from consecutive segments of a cardiac electrical signal and determine a gross morphology metric from at least one segment of the cardiac electrical signal. The device is configured to detect cardiac event oversensing in response to detecting the alternating pattern and the gross morphology metric not meeting tachyarrhythmia morphology criteria. The medical device may withhold detecting an arrhythmia in response to detecting the cardiac event oversensing.
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公开(公告)号：US20240042213A1
公开(公告)日：2024-02-08
申请号：US18491670
申请日：2023-10-20
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Kevin L. Dehmer , Saul E. Greenhut , Troy E. Jackson , Yuanzhen Liu
CPC classification number: A61N1/3621 , A61B5/363
Abstract: A medical device is configured to determine time intervals between consecutive cardiac events sensed from a cardiac electrical signal, increase a value of a tachyarrhythmia interval count in response to each of the determine time intervals detected as a tachyarrhythmia interval. The device is further configured to detect normal sinus rhythm events and the decrease the value of the tachyarrhythmia interval count in response to a threshold number of detected normal sinus rhythm events.
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公开(公告)号：US11801385B2
公开(公告)日：2023-10-31
申请号：US17087960
申请日：2020-11-03
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Kevin L. Dehmer , Saul Greenhut , Troy E. Jackson , Yuanzhen Liu
CPC classification number: A61N1/3621 , A61B5/363
Abstract: A medical device is configured to determine time intervals between consecutive cardiac events sensed from a cardiac electrical signal, increase a value of a tachyarrhythmia interval count in response to each of the determine time intervals detected as a tachyarrhythmia interval. The device is further configured to detect normal sinus rhythm events and the decrease the value of the tachyarrhythmia interval count in response to a threshold number of detected normal sinus rhythm events.
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Patent Agency Ranking
公开(公告)号：US11737712B2
公开(公告)日：2023-08-29
申请号：US16874920
申请日：2020-05-15
Applicant: Medtronic, Inc.
Inventor： Saul E. Greenhut , Yuanzhen Liu , Xusheng Zhang
CPC classification number: A61B5/7203 , A61B5/316 , A61B5/363 , A61B5/4836 , A61B5/7221 , A61N1/365
Abstract: A medical device is configured to sense event signals from a cardiac electrical signal and determine maximum amplitudes of cardiac electrical signal segments associated with sensed event signals. The medical device is configured to determine at least one tachyarrhythmia metric based on at least a greatest one of the determined maximum amplitudes. The medical device may determine when the at least one tachyarrhythmia metric does not meet true tachyarrhythmia evidence and, in response, determine when the maximum amplitudes meet suspected noise criteria. The medical device may withhold a tachyarrhythmia detection and tachyarrhythmia therapy when suspected noise criteria are met.
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公开(公告)号：US20210170170A1
公开(公告)日：2021-06-10
申请号：US17109968
申请日：2020-12-02
Applicant: Medtronic, Inc.
Inventor： Gavin M. Mischler , Yuanzhen Liu , Saul E. Greenhut , Xusheng Zhang
Abstract: A medical device is configured to detect an alternating pattern of signal features determined from consecutive segments of a cardiac electrical signal and determine a gross morphology metric from at least one segment of the cardiac electrical signal. The device is configured to detect cardiac event oversensing in response to detecting the alternating pattern and the gross morphology metric not meeting tachyarrhythmia morphology criteria. The medical device may withhold detecting an arrhythmia in response to detecting the cardiac event oversensing.
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公开(公告)号：US12295736B2
公开(公告)日：2025-05-13
申请号：US18193457
申请日：2023-03-30
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Saul E. Greenhut , Yuanzhen Liu
Abstract: A medical device is configured to sense an electrical signal and determine that signal to noise criteria are met based on electrical signal segments stored in response to sensed electrophysiological events. The medical device is configured to determine an increased gain signal segment from one of the stored electrical signal segments in response to determining that the signal to noise criteria are met. The medical device determines a noise metric from the increased gain signal segment. The stored electrical signal segment associated with the increased gain signal segment may be classified as a noise segment in response to the noise metric meeting noise detection criteria.
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公开(公告)号：US20230233131A1
公开(公告)日：2023-07-27
申请号：US18193457
申请日：2023-03-30
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Saul E. Greenhut , Yuanzhen Liu
CPC classification number: A61B5/363 , A61B5/7264 , A61B5/686 , A61B5/4836 , A61B5/29 , A61B5/7203 , A61B5/7225
Abstract: A medical device is configured to sense an electrical signal and determine that signal to noise criteria are met based on electrical signal segments stored in response to sensed electrophysiological events. The medical device is configured to determine an increased gain signal segment from one of the stored electrical signal segments in response to determining that the signal to noise criteria are met. The medical device determines a noise metric from the increased gain signal segment. The stored electrical signal segment associated with the increased gain signal segment may be classified as a noise segment in response to the noise metric meeting noise detection criteria.
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公开(公告)号：US11617534B2
公开(公告)日：2023-04-04
申请号：US17172770
申请日：2021-02-10
Applicant: Medtronic, Inc.
Inventor： Xusheng Zhang , Saul E. Greenhut , Yuanzhen Liu
Abstract: A medical device is configured to sense an electrical signal and determine that signal to noise criteria are met based on electrical signal segments stored in response to sensed electrophysiological events. The medical device is configured to determine an increased gain signal segment from one of the stored electrical signal segments in response to determining that the signal to noise criteria are met. The medical device determines a noise metric from the increased gain signal segment. The stored electrical signal segment associated with the increased gain signal segment may be classified as a noise segment in response to the noise metric meeting noise detection criteria.
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