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公开(公告)号：US20240216696A1
公开(公告)日：2024-07-04
申请号：US18558439
申请日：2022-04-27
发明人： Daniel YOUNG , Christopher JONES , Madeline Anne MIDGETT , Brad MCMILLAN , Kurt SWENSON , R. Hollis WHITTINGTON
CPC分类号： A61N1/365 , A61N1/362 , A61N1/37512 , A61N1/3756
摘要： An implantable medical device configured to provide for an intracardiac function comprises a body, a sensor arrangement arranged on the body and configured to receive a cardiac sense signal, and a processing circuitry operatively connected to the sensor arrangement. The processing circuitry is configured to process the cardiac sense signal received using the sensor arrangement to detect a signal deflection in the cardiac sense signal potentially indicative of an atrial event caused by atrial activity, and to start a peak detection window based on the detection of said signal deflection for determining a peak amplitude associated with said atrial event. The peak detection window comprises one or more sub-windows, the processing circuitry being configured to determine a candidate peak value in each sub-window and to set the peak amplitude based on the valid candidate peak values of the one or more consecutive sub-windows.
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公开(公告)号：US20240075301A1
公开(公告)日：2024-03-07
申请号：US18262585
申请日：2022-02-03
CPC分类号： A61N1/3704 , A61N1/365 , A61N1/3756
摘要： An implantable medical device configured to provide for an intracardiac function comprises a body, a sensor arrangement arranged on the body and configured to receive a cardiac sense signal, and a processing circuitry operatively connected to the sensor arrangement. The processing circuitry is configured to process the cardiac sense signal received using the sensor arrangement to detect, in a cardiac cycle, a first atrial event candidate based on a comparison of the cardiac sense signal with a sense threshold, to determine a modified sense threshold, to monitor, by comparing the cardiac sense signal to said modified sense threshold following the detection of the first atrial event candidate, whether in the same cardiac cycle a second atrial event candidate is detected.
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公开(公告)号：US20240042217A1
公开(公告)日：2024-02-08
申请号：US18264514
申请日：2022-02-07
CPC分类号： A61N1/3714 , A61N1/3756 , A61N1/365 , A61N1/025 , A61B5/29
摘要： An implantable medical device configured to provide for an intracardiac function comprises a body, a sensor arrangement arranged on the body and configured to receive cardiac sense signals, and a processing circuitry operatively connected to the sensor arrangement. The processing circuitry is configured to process cardiac sense signals received using the sensor arrangement to detect atrial events caused by atrial activity based on a comparison of the cardiac sense signals to a sense threshold for a number of cardiac cycles, to evaluate whether a reduction criterion is fulfilled, wherein the reduction criterion is fulfilled if in X1 out of Y1 cardiac cycles no atrial events have been detected, X1 being a natural number equal to or larger than 1 and Y1 being a natural number equal to or larger than X1, and to reduce the sense threshold if said reduction criterion is fulfilled.
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公开(公告)号：US20240207619A1
公开(公告)日：2024-06-27
申请号：US18557078
申请日：2022-04-26
CPC分类号： A61N1/365 , A61N1/37512 , A61N1/3756 , A61N1/0573
摘要： An implantable medical device configured to provide for an intracardiac function comprises a body, a sensor arrangement arranged on the body and configured to receive a cardiac sense signal, and a processing circuitry operatively connected to the sensor arrangement. The processing circuitry is configured to process the cardiac sense signal received using the sensor arrangement to monitor the cardiac sense signal to detect whether a start criterion is fulfilled, wherein the start criterion is fulfilled if at least one signal sample (s(i−3) . . . s(i+3)) of the cardiac sense signal is smaller than a start threshold, and to start an atrial detection window for detecting, within the atrial detection window, a signal deflection of the cardiac sense signal potentially indicative of an atrial event, based on whether the detection criterion is fulfilled.
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