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1.发明申请公开(公告)号：US20230135859A1
公开(公告)日：2023-05-04
申请号：US18146870
申请日：2022-12-27
申请人： Pacesetter, Inc.
发明人： Nima Badie , Fujian Qu , Jong Gill
IPC分类号： A61B5/352 , A61B5/00 , A61B5/0245
摘要： Described herein are methods, devices, and systems that monitor heart rate and/or for arrhythmic episodes based on sensed intervals that can include true R-R intervals as well as over-sensed R-R intervals. True R-R intervals are initially identified from an ordered list of the sensed intervals by comparing individual sensed intervals to a sum of an immediately preceding two intervals, and/or an immediately following two intervals. True R-R intervals are also identified by comparing sensed intervals to a mean or median of durations of sensed intervals already identified as true R-R intervals. Individual intervals in a remaining ordered list of sensed intervals (from which true R-R intervals have been removed) are classified as either a short interval or a long interval, and over-sensed R-R intervals are identified based on the results thereof. Such embodiments can be used, e.g., to reduce the reporting of and/or inappropriate responses to false positive tachycardia detections.
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公开(公告)号：US11633141B2
公开(公告)日：2023-04-25
申请号：US17242561
申请日：2021-04-28
申请人： Pacesetter, Inc.
发明人： Fady Dawoud , Fujian Qu , Stuart Rosenberg , Gene A. Bornzin , Jong Gill , Neha Malhotra , Xiaoyi Min
摘要： Computer implemented methods and systems for detecting arrhythmias in cardiac activity are provided. The method is under control of one or more processors configured with specific executable instructions. The method obtains a far field cardiac activity (CA) data set that includes far field CA signals for beats. The method applies a feature enhancement function to the CA signals to form an enhanced feature in the CA data set. The method calculates an adaptive sensitivity level and sensitivity limit based on the enhanced feature from one or more beats within the CA data set and automatically iteratively analyzes a beat segment of interest by comparing the beat segment of interest to the current sensitivity level to determine whether one or more R-waves are present within the beat segment of interest. The method repeats the iterative analyzing operation while progressively adjusting the current sensitivity level until i) the one or more R-waves are detected in the beat segment of interest and/or ii) the current sensitivity level reaches the sensitivity limit. The method detects an arrhythmia within the beat segment of interest based on a presence or absence of the one or more R-waves and records results of the detecting of the arrhythmia.
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公开(公告)号：US20230083815A1
公开(公告)日：2023-03-16
申请号：US17810923
申请日：2022-07-06
申请人： Pacesetter, Inc.
发明人： Eric Labbe , Dean Andersen , Shuo Li
摘要： A system is provided that includes electrodes configured to be implanted in a body, and a pulse generator (PG) circuitry to deliver a stimulus to one or more of the electrodes. The system also includes sensing circuitry configured to define a sensing channel between one or more of the electrodes to sense signals indicative of a physiologic activity of interest, and the sensing circuitry further configured to collect a calibration signal over the sensing channel. The sensing circuitry and PG circuitry are housed within an implantable medical device (IMD). The system also includes one or more processors configured to determine a signal characteristic of interest (COI) of the calibration signal. The one or more processors are also configured to compare a signal COI of the stimulus to the signal COI of the calibration signal, and adjust a parameter of the sensing circuitry or PG circuitry based on the comparison.
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公开(公告)号：US20230074562A1
公开(公告)日：2023-03-09
申请号：US18055253
申请日：2022-11-14
申请人： Pacesetter, Inc.
摘要： An implantable pulse generator including a header, a can, and a filtered feedthrough assembly. The header including lead connector blocks. The can coupled to the header and including a wall and an electronic substrate housed within the wall. The filtered feedthrough assembly including a flange mounted to the can and having a feedthrough port, a plurality of feedthrough wires extending through the feedthrough port, and an insulator brazed to the feedthrough port of the flange. The filtered feedthrough assembly further including a capacitor having the plurality of feedthrough wires extending there through, an insulating washer positioned between and abutting the insulator and the capacitor at least in the area of the braze joint such that the capacitor and the braze joint are non-conductive, and an electrically conductive material adhered to the capacitor and the flange for grounding of the capacitor.
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公开(公告)号：US20230039943A1
公开(公告)日：2023-02-09
申请号：US17972728
申请日：2022-10-25
申请人： Pacesetter, Inc.
发明人： Yongjian Wu , Jyoti Bhayana , Chao-Wen Young , Tejpal Singh , Samir Shah
摘要： A method and device for managing establishment of a communications link between an external instrument (EI) and an implantable medical device (IMD) are provided. The method stores, in a memory in at least one of the IMD or the EI, a base scanning schedule that defines a pattern for scanning windows over a scanning state. The method enters the scanning state during which a receiver scans for advertisement notices during the scanning windows. At least a portion of the scanning windows are grouped in a first segment of the scanning state. The method stores, in the memory, a scan reset pattern for restarting the scanning state. Further, the method automatically restarts the scanning state based on the scan reset pattern to form a pseudo-scanning schedule that differs from the base scanning schedule and establishes a communication session between the IMD and the EI.
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公开(公告)号：US20230028735A1
公开(公告)日：2023-01-26
申请号：US17664180
申请日：2022-05-19
申请人： Pacesetter, Inc.
发明人： Zachary Hanze , Bei Ning Zhang , Arees Garabed , Rodney Hawkins , Xiangqun Chen , Alexander Davis Robertson , Alex Soriano , Kyungmoo Ryu
摘要： An implant delivery instrument includes a housing with a main body section that defines a passage therethrough from a front end of the main body section to a back end of the main body section. The passage receives an obturator through an opening at the back end, and also receives an implant device. Movement of the obturator through the passage pushes the implant device through a discharge opening at the front end and through an incision into a subdermal pocket of a patient. The housing includes a tab connected to and projecting from the front end of the main body section. The tab has a blunt dissection tip for maintaining the incision in an open state without creating or enlarging the incision, and the tab is configured to surround the implant device moving through the discharge opening along only one side of the implant device.
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公开(公告)号：US11547857B2
公开(公告)日：2023-01-10
申请号：US17395780
申请日：2021-08-06
申请人： Pacesetter, Inc.
摘要： Methods and devices herein are provided for managing atrial (A) pacing in connection with premature atrial contracts (PAC). The methods and devices obtain an atrial pace-on-PAC (APAC) interval and cardiac activity (CA) signals. The methods and devices are configured to: i) during a first cardiac beat; following a ventricular paced (VP) or ventricular sensed (VS) event, activate a timer for a post ventricular-atrial refractory period (PVARP) interval; and determine whether a first atrial refractory (AR) event occurs during the PVARP interval; ii) during a second cardiac beat; in response to the detecting that the first AR event occurred, initiate an APAC interval; during the APAC interval for the second cardiac beat, determine whether a second AR event occurs; and update a count of APAC events when the second AR event occurs; and iii) repeat i) and ii) for multiple cardiac beats, to track the count of APAC events.
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公开(公告)号：US20220401036A1
公开(公告)日：2022-12-22
申请号：US17723207
申请日：2022-04-18
申请人： Pacesetter, Inc.
发明人： Nima Badie , Wenwen Li , Fujian Qu , Jong Gill
摘要： Described herein are methods, devices and system for determining whether an R-wave detection should be classified as a false R-wave detection due to T-wave oversensing (TWO) or P-wave oversensing (PWO). One such method includes comparing a specific morphological characteristic (e.g., peak amplitude) associated with the R-wave detection to the specific morphological characteristic associated with each R-wave detection in a first set of earlier detected R-wave detections to thereby determine whether first TWO or PWO morphological criteria are met, and in a second set of earlier detected R-wave detections to thereby determine whether second TWO or PWO morphological criteria are met, wherein the second set differs from the first set but may have some overlap with the first set. The method also includes determining whether to classify the R-wave detection as a false R-wave detection, based on whether one of the first or second TWO or PWO morphological criteria are met.
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公开(公告)号：US20220386963A1
公开(公告)日：2022-12-08
申请号：US17660777
申请日：2022-04-26
申请人： Pacesetter, Inc.
发明人： Xing Pei
摘要： A computer implemented method is provided that includes, under control of one or more processors of an implantable medical device (IMD), obtaining motion data indicative of a first posture, and determining a first sense setting of the IMD based on the first posture. The method also includes obtaining cardiac activity (CA) signals for a series of beats while applying the first sense setting, obtaining a characteristic of interest (COI) from the CA signals for the series of beats, and calculating a statistical indicator from the COI over the series of beats based on the COI from the CA signals. The method also includes deriving a second sense setting based on the first sense setting and the statistical indicator of the COI.
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公开(公告)号：US20220375692A1
公开(公告)日：2022-11-24
申请号：US17881496
申请日：2022-08-04
申请人： Pacesetter, Inc.
发明人： Xiaofei Jiang
摘要： A capacitor has an anode with one or more active layers that each includes fused particles positioned on a current collector. The current collector includes tunnels that extend from a first face of the current collector to a second face of the current collector.
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