-
公开(公告)号：WO2021144122A1
公开(公告)日：2021-07-22
申请号：PCT/EP2020/087361
申请日：2020-12-21
发明人： MIDGETT, Madeline Anne , WHITTINGTON, R. Hollis , REDDY, Ravi Kiran Kondama , JONES, Christopher , GUHANIYOGI, Shayan
IPC分类号： A61N1/372 , A61N1/375 , A61N1/37 , A61N1/365 , A61N1/368 , A61N1/3704 , A61N1/3756
摘要： A leadless pacemaker device (1) configured to provide for an intra-cardiac pacing comprises a housing (10); an electrode arrangement arranged on the housing (10) and configured to receive electrical signals; and a processing circuitry (15) enclosed in the housing (10) and operatively connected to the electrode arrangement, wherein the processing circuitry (15) comprises a first processing channel (16) having a first gain (G1) for processing a first processing signal derived from electrical signals received via the electrode arrangement and a second processing channel (17) having a second gain (G2) for processing a second processing signal derived from electrical signals received via the electrode arrangement, the second gain (G2) being higher than the first gain (G1).
-
公开(公告)号：WO2023057341A1
公开(公告)日：2023-04-13
申请号：PCT/EP2022/077346
申请日：2022-09-30
发明人： TAFF, Brian M. , MUESSIG, Dirk , WHITTINGTON, R. Hollis , AUSTIN, Eric , HUGHES, Devan , MIDGETT, Madeline Anne
IPC分类号： A61N1/05 , A61N1/375 , A61N1/372 , A61N1/0573 , A61N1/37205 , A61N1/37516 , A61N1/3756
摘要： The present invention relates to a method for fixing of an intracardiac device at an anchoring region within the tissue of a patient's heart is described which allows fixing at a thin wall, wherein the intracardiac device comprises one electrode (24) and at least two tines (30) attached at a distal end of the intra-cardiac device adjacent the electrode (24), wherein each of the at least two tines (30) has an S-form with the furthest distal end section pointing inwards, is pivotable outwards around a bending point at its proximal end and/or bendable and is preloaded inwards, comprising the following steps:- the intra-cardiac device is moved towards the anchoring region (arrow P1) with the at least two tines (30) facing forwards until the at least two tines touch the tissue at the anchoring region, - then, the at least two tines (30) are pressed against the tissue at the anchoring region (arrow P2) such that the at least two tines (30) are pivoted outwards and/or bent outwards, thereby the distal ends of the at least two tines penetrate into the tissue, and,- afterwards, the pressure on the tines (3) is against the tissue is removed, thereby bunching a wall segment (11) of the tissue by the at least two tines and pulling this wall segment (11) towards the electrode (24). Further, a respective intracardiac device is disclosed.
-
公开(公告)号：WO2022175123A1
公开(公告)日：2022-08-25
申请号：PCT/EP2022/052813
申请日：2022-02-07
摘要： An implantable medical device (1) configured to provide for an intracardiac function comprises a body (10), a sensor arrangement arranged on the body (10) and configured to receive cardiac sense signals, and a processing circuitry (15) operatively connected to the sensor arrangement. The processing circuitry (15) is configured to process cardiac sense signals received using the sensor arrangement to detect atrial events (As) caused by atrial activity based on a comparison of the cardiac sense signals to a sense threshold (ST) 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 (As) 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 (ST) (As) if said reduction criterion is fulfilled.
-
公开(公告)号：WO2022167340A2
公开(公告)日：2022-08-11
申请号：PCT/EP2022/052068
申请日：2022-01-28
摘要： An implantable medical device (1) configured to provide for an intra-cardiac function, the implantable medical device (1) comprises a body (10), a sensor arrangement arranged on the body (10) and configured to receive cardiac sense signals, and a processing circuitry (15) operatively connected to the sensor arrangement. The processing circuitry (15) is configured to process cardiac sense signals received using the sensor arrangement to detect a signal deflection potentially indicative of an atrial event (As) caused by atrial activity to obtain an atrial detection, to detect a signal deflection indicative of a ventricular event (Vx) caused by ventricular activity succeeding said atrial detection, to determine an atrial -ventricular interval (AVI) representing a time between the atrial detection and the ventricular event (Vx), and to identify the atrial detection as valid or invalid based on the atrial -ventricular interval (AVI).
-
公开(公告)号：WO2022233634A1
公开(公告)日：2022-11-10
申请号：PCT/EP2022/060957
申请日：2022-04-26
摘要： An implantable medical device (1) configured to provide for an intracardiac function comprises a body (10), a sensor arrangement arranged on the body (10) and configured to receive a cardiac sense signal (S2), and a processing circuitry (15) operatively connected to the sensor arrangement. The processing circuitry (15) is configured to process the cardiac sense signal (S2) received using the sensor arrangement to monitor the cardiac sense signal (S2) 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 (S2) is smaller than a start threshold (TH), and to start an atrial detection window (Tsense) for detecting, within the atrial detection window (Tsense), a signal deflection of the cardiac sense signal (S2) potentially indicative of an atrial event (As), based on whether the detection criterion is fulfilled.
-
公开(公告)号：WO2021156012A1
公开(公告)日：2021-08-12
申请号：PCT/EP2021/050286
申请日：2021-01-08
IPC分类号： A61N1/37
摘要： The invention relates to an implantable medical device for stimulating a human or animal heart, comprising a control unit, a memory unit, a stimulation unit for stimulating a cardiac region of a human or animal heart, and a detection unit for detecting an electrical signal of the same heart. The memory unit comprises a computer-readable program that causes the control unit to perform the following steps when executed on the control unit: a) detecting (110), with the detection unit, capture thresholds during an observation period, each capture threshold being detected in response to a sequence of pacing pulses delivered by the stimulation unit; b) storing the detected capture thresholds in the memory unit; c) determining (120) threshold-to-threshold differences between two consecutive capture thresholds in each case; and d) if a maximum determined threshold-to-threshold difference within the observation period is equal to or greater than a predetermined limit, adjusting (140; 170) a pacing output of the stimulation unit on the basis of the maximum capture threshold determined within a first time period, the first time period being equal to or shorter than the observation period; or if the maximum determined threshold-to-threshold difference within the observation period is smaller than the predetermined limit, adjusting (150; 170) the pacing output of the stimulation unit on the basis of the maximum capture threshold determined within a second time period, the second time period being shorter than the first time period.
-
公开(公告)号：WO2023036588A1
公开(公告)日：2023-03-16
申请号：PCT/EP2022/073241
申请日：2022-08-19
IPC分类号： A61N1/372 , A61B5/00 , A61B5/29 , A61B5/335 , A61B5/349 , A61N1/08 , A61B5/0215 , A61B5/053 , A61B5/08 , A61B5/25 , A61B5/308 , A61B5/0538 , A61B5/11 , A61N1/375
摘要： The invention refers to an implantable medical device (IMD, 40) comprising at least one sensor, a processor and a transceiver module, wherein the at least one sensor is configured to monitor at least one predefined body function of a patient, wherein the transceiver module is configured to bi-directionally exchange messages with an external device (60), namely to receive request messages from the external device (60) and to send respective response messages (401) to the external device (60) replying to the request messages. In order to best leverage the limited data communication throughput of IMDs to enable body function data streaming the processor is configured to receive signals of the at least one predefined body function (101, 107) detected by the at least one sensor. Further, the invention refers to a communication system comprising the IMD, a communication method as well as a computer program product and a computer readable data carner.
-
公开(公告)号：WO2022238123A1
公开(公告)日：2022-11-17
申请号：PCT/EP2022/061232
申请日：2022-04-27
发明人： YOUNG, Daniel , JONES, Christopher , MIDGETT, Madeline Anne , MCMILLAN, Brad , SWENSON, Kurt , WHITTINGTON, R. Hollis
IPC分类号： A61N1/368 , A61N1/375 , A61N1/3682 , A61N1/3684 , A61N1/3756
摘要： An implantable medical device (1) configured to provide for an intracardiac function comprises a body (10), a sensor arrangement arranged on the body (10) and configured to receive a cardiac sense signal (S2), and a processing circuitry (15) operatively connected to the sensor arrangement. The processing circuitry (15) is configured to process the cardiac sense signal (S2) received using the sensor arrangement to detect a signal deflection in the cardiac sense signal (S2) potentially indicative of an atrial event (As) caused by atrial activity, and to start a peak detection window (PDW) based on the detection of said signal deflection for determining a peak amplitude (PA) associated with said atrial event (As). The peak detection window (PDW) comprises one or more sub-windows (Pi, Pi+1,...), the processing circuitry (15) being configured to determine a candidate peak value in each sub-window (Pi, Pi+1,...) and to set the peak amplitude (PA) based on the valid candidate peak values of the one or more consecutive sub-windows (Pi, Pi+1,...).
-
公开(公告)号：WO2022171510A1
公开(公告)日：2022-08-18
申请号：PCT/EP2022/052525
申请日：2022-02-03
摘要： An implantable medical device (1) configured to provide for an intracardiac function comprises a body (10), a sensor arrangement arranged on the body (10) and configured to receive a cardiac sense signal, and a processing circuitry (15) operatively connected to the sensor arrangement. The processing circuitry (15) is configured to process the cardiac sense signal received using the sensor arrangement to detect, in a cardiac cycle, a first atrial event candidate (As1) based on a comparison of the cardiac sense signal with a sense threshold (ST), to determine a modified sense threshold (ST2), to monitor, by comparing the cardiac sense signal to said modified sense threshold (ST2) following the detection of the first atrial event candidate (As1), whether in the same cardiac cycle a second atrial event candidate(As2) is detected.Fig. 6A+6B
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
