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公开(公告)号:US20240017081A1
公开(公告)日:2024-01-18
申请号:US18373248
申请日:2023-09-26
Applicant: Cardiac Pacemakers, Inc.
Inventor: Deepa Mahajan , David L. Perschbacher , Sunipa Saha
CPC classification number: A61N1/3925 , A61B5/6805 , A61B5/7282 , A61B5/746 , A61N1/3956 , A61B5/363 , A61B5/7221 , A61N1/3993 , A61B5/364
Abstract: Systems and methods for detecting cardiac events in a patient are described herein. An embodiment of a medical system includes a detection circuit configured to detect cardiac events of the patient at different detection settings using physiologic information of the patient and a control circuit to determine a priority for each detected cardiac event based on the detection setting used to detect the respective cardiac event and to prioritize system resources for the detected cardiac event according to the determined priorities, wherein to prioritize system resources comprises to allocate memory space for the detected cardiac events or to prioritize data transmission of the detected cardiac events to an external system based on the determined priority for each respective cardiac event.
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公开(公告)号:US11744503B2
公开(公告)日:2023-09-05
申请号:US16845578
申请日:2020-04-10
Applicant: Cardiac Pacemakers, Inc.
Inventor: Sunipa Saha , David L. Perschbacher , Deepa Mahajan
CPC classification number: A61B5/364 , A61B5/349 , A61B5/361 , A61B5/686 , A61N1/36592 , A61N1/37211 , A61N1/39
Abstract: This document discusses, among other things, systems and methods to detect an initial arrhythmia event indication and, after a threshold amount of detection window intervals detecting the initial arrhythmia event indication, adjust a set of arrhythmia parameters or at least one of a respective set of parameter thresholds to increase sensitivity of an extended arrhythmia event indication detection.
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公开(公告)号:US11666260B2
公开(公告)日:2023-06-06
申请号:US16539905
申请日:2019-08-13
Applicant: Cardiac Pacemakers, Inc.
Inventor: Sunipa Saha , Yanting Dong , Holly E. Rockweiler
CPC classification number: A61B5/24 , A61B5/0205 , A61B5/1107 , A61B5/4052 , A61B5/686 , A61B5/7221 , A61B5/7246 , A61N1/36542 , A61N1/371 , A61B5/7217 , A61B2562/0219
Abstract: Some method examples may include pacing a heart with cardiac paces, sensing a physiological signal for use in detecting pace-induced phrenic nerve stimulation, performing a baseline level determination process to identify a baseline level for the sensed physiological signal, and detecting pace-induced phrenic nerve stimulation using the sensed physiological signal and the calculated baseline level. Detecting pace-induced phrenic nerve stimulation may include sampling the sensed physiological signal during each of a plurality of cardiac cycles to provide sampled signals and calculating the baseline level for the physiological signal using the sampled signals. Sampling the sensed physiological signal may include sampling the signal during a time window defined using a pace time with each of the cardiac cycles to avoid cardiac components and phrenic nerve stimulation components in the sampled signal.
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公开(公告)号:US20230040827A1
公开(公告)日:2023-02-09
申请号:US17962746
申请日:2022-10-10
Applicant: Cardiac Pacemakers, Inc.
Inventor: Deepa Mahajan , David L. Perschbacher , Sunipa Saha
Abstract: Systems and methods for managing machine-generated alert notifications of medical events detected from one or more patients are described herein. An embodiment of a data management system may receive an adjudication of a medical event episode including an episode characterization. A storage unit stores an association between one or more episode characterizations and corresponding detection algorithms for detecting a medical event having respective episode characterizations. An episode management circuit may detect from a subsequent episode, using the stored association, a medical event having an episode characterization of at least one medical event episode presented for adjudication, and schedule presenting at least a portion of the subsequent episode based on the detection.
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公开(公告)号:US20200037909A1
公开(公告)日:2020-02-06
申请号:US16519728
申请日:2019-07-23
Applicant: Cardiac Pacemakers, Inc.
Inventor: David L. Perschbacher , Sunipa Saha , Deepa Mahajan , Derek D. Bohn
IPC: A61B5/0452 , A61B5/042 , A61B5/00 , A61B5/0205
Abstract: Systems and methods for presenting physiologic data to a user are discussed. An exemplary system includes a presentation control circuit configured to generate signal metrics from data subsets of a physiologic signal corresponding to a device-detected presence of a physiologic event. The signal metrics represent characteristics of the physiologic event. The presentation control circuit may determine, from the plurality of data subsets, a target subset of clinical significance, which has the corresponding signal metric satisfying a specific condition. The presentation control circuit may present the recognized target subset over other subsets of the physiologic data. A user may adjudicate the device detection of the physiologic event or adjust device parameters.
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公开(公告)号:US20190351233A1
公开(公告)日:2019-11-21
申请号:US16526701
申请日:2019-07-30
Applicant: Cardiac Pacemakers, Inc.
Inventor: Holly E. Rockweiler , Sunipa Saha , Keith L. Herrmann , Yinghong Yu , Joel A. Krueger
Abstract: Some systems and methods may facilitate selection of a vector for delivering electrical stimulation to a patient's heart. One method may include displaying a plurality of vectors on a display screen wherein each vector represents a different combination of three or more electro-stimulation electrodes, determining an electrical impedance for each of the plurality of vectors, displaying on the display screen the electrical impedance for each of the plurality of vectors, receiving a selection of a set of the plurality of vectors, determining, for each of the vectors in the set of vectors, a capture threshold, displaying on the display screen the capture threshold for each of the vectors in the set of vectors, receiving a selection of a vector from the set of vectors for delivery of electrical stimulation to the patient's heart, and programming the electro-stimulation device electrical stimulation to the patient's heart via the selected vector.
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公开(公告)号:US20190029552A1
公开(公告)日:2019-01-31
申请号:US16042296
申请日:2018-07-23
Applicant: Cardiac Pacemakers, Inc.
Inventor: David L. Perschbacher , Sunipa Saha , Deepa Mahajan
Abstract: An apparatus comprises an arrhythmia detection circuit configured to: receive a cardiac signal representative of cardiac activity of a subject; apply a first arrhythmia detection criteria to the received cardiac signal; apply, in response to the applied first arrhythmia detection criteria producing a positive indication of arrhythmia, a second arrhythmia detection criteria to the received cardiac signal, wherein the second arrhythmia detection criteria is more specific to detection of arrhythmia than the first detection criteria; detect, in response to the applied first and second arrhythmia detection criteria, a sensing event indicating one or both of the first and second arrhythmia detection criteria are susceptible to false indications of arrhythmia; and adjust, in response to a detected sensing event, sensitivity or specificity of one or both of the first and second arrhythmia detection criteria.
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公开(公告)号:US20190013087A1
公开(公告)日:2019-01-10
申请号:US16025855
申请日:2018-07-02
Applicant: Cardiac Pacemakers, Inc.
Inventor: Deepa Mahajan , David L. Perschbacher , Sunipa Saha
Abstract: Systems and methods for managing medical information storage and transmission are discussed. A data management system may include a receiver circuit to receive information about a physiological event sensed from a patient, and an event prioritizer circuit to assign a priority to the received information. A control circuit may perform data reduction of the received information according to the assigned priority. Data reduction at a higher reduction rate is performed on the received information if a lower priority is assigned than if a higher priority is assigned. The system may include an output circuit to output the received information to a user or a process, or to transmit the received information to an external device, according to the assigned priority.
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公开(公告)号:US09795790B2
公开(公告)日:2017-10-24
申请号:US15348293
申请日:2016-11-10
Applicant: Cardiac Pacemakers, Inc.
Inventor: Holly E. Rockweiler , David C. Olson , Sunipa Saha
CPC classification number: A61N1/3704 , A61B5/04001 , A61B5/1107 , A61B5/726 , A61B2562/0219 , A61N1/36542 , A61N1/371
Abstract: The disclosure relates to systems and methods for cardiac rhythm management. In some cases, a system may include a pulse generator for generating pacing pulses for stimulating a heart of a patient; a memory; and a sensor configured to sense a response to an unwanted stimulation and to produce a corresponding sensor signal. A processing circuit may receive the sensor signal for a time after one or more pacing pulses, and may derive a time-frequency representation of the sensor signal based on the received sensor signal. The processing circuit may use the time-frequency representation of the sensor signal to help identify unwanted stimulation. Once unwanted stimulation is detected, the processing circuit may change the pacing pulses to help reduce or eliminate the unwanted stimulation.
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公开(公告)号:US09649498B2
公开(公告)日:2017-05-16
申请号:US14601719
申请日:2015-01-21
Applicant: Cardiac Pacemakers, Inc.
Inventor: Deepa Mahajan , Yanting Dong , Sunipa Saha , Holly Rockweiler , Kenneth N. Hayes , Krzysztof Z. Siejko , Clayton S. Foster
CPC classification number: A61N1/3686 , A61B5/0031 , A61B5/04001 , A61B5/0452 , A61N1/36514 , A61N1/3684 , A61N1/3702 , A61N1/371 , A61N1/37247
Abstract: Various techniques are disclosed for quickly and efficiently determining cardiac pacing vectors that minimize phrenic nerve stimulation.
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