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公开(公告)号：US20170325899A1
公开(公告)日：2017-11-16
申请号：US15609534
申请日：2017-05-31
Inventor： Daniel J. Potter , Lev A. Koyrakh
CPC classification number: A61B34/20 , A61B5/062 , A61B5/063 , A61B5/065 , A61B5/066 , A61B18/1492 , A61B2017/00243 , A61B2018/00023 , A61B2018/00351 , A61B2018/00577 , A61B2018/00892 , A61B2018/00988 , A61B2034/2051 , A61B2034/2053 , A61B2090/061 , A61B2090/0811 , A61B2562/0257 , A61M25/0097 , A61M25/0105 , A61M25/0147 , A61M2025/0166
Abstract: Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may he on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.
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公开(公告)号：US11723725B2
公开(公告)日：2023-08-15
申请号：US17166868
申请日：2021-02-03
Inventor： Daniel J. Potter , Lev A. Koyrakh
CPC classification number: A61B34/20 , A61B5/062 , A61B5/063 , A61B5/065 , A61B18/1492 , A61M25/0105 , A61B5/066 , A61B2017/00243 , A61B2018/00023 , A61B2018/00351 , A61B2018/00577 , A61B2018/00892 , A61B2018/00988 , A61B2034/2051 , A61B2034/2053 , A61B2090/061 , A61B2090/0811 , A61B2562/0257 , A61M25/0097 , A61M25/0147 , A61M2025/0166
Abstract: Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may be on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.
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公开(公告)号：US10561371B2
公开(公告)日：2020-02-18
申请号：US14800910
申请日：2015-07-16
Inventor： Lev A. Koyrakh , Eric J. Voth , John A. Hauck , Jeffrey A. Schweitzer
Abstract: A system for determining a location of an electrode of a medical device (e.g., a catheter) in a body of a patient includes a localization block for producing an uncompensated electrode location, a motion compensation block for producing a compensation signal (i.e., for respiration, cardiac, etc.), and a mechanism for subtracting the compensation signal from the uncompensated electrode location. The result is a corrected electrode location substantially free of respiration and cardiac artifacts. The motion compensation block includes a dynamic adaptation feature which accounts for changes in a patient's respiration patterns as well as intentional movements of the medical device to different locations within the patient's body. The system further includes an automatic compensation gain control which suppresses compensation when certain conditions, such as noise or sudden patch impedance changes, are detected.
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公开(公告)号：US10198876B2
公开(公告)日：2019-02-05
申请号：US15921988
申请日：2018-03-15
Inventor： Lev A. Koyrakh , Eric J. Voth
Abstract: A method for projecting a 3D surface geometry onto a planar projection comprises: obtaining a 3D geometry of a chamber surface using an algorithm that generates angles and distances between points on the chamber surface that represent mapping information; applying a cutting curve to at least two points on the chamber surface; and at least partially unfolding at least a portion of the chamber surface along the cutting curve to form a planar projection that optimally preserves the angles and distances between points on the chamber surface.
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公开(公告)号：US20180240283A1
公开(公告)日：2018-08-23
申请号：US15921988
申请日：2018-03-15
Inventor： Lev A. Koyrakh , Eric J. Voth
CPC classification number: G06T19/20 , A61B5/0408 , A61B5/0422 , G06T11/00 , G06T17/205 , G06T19/00 , G06T2210/41 , G06T2219/008 , G06T2219/2004 , G06T2219/2008
Abstract: A method for projecting a 3D surface geometry onto a planar projection comprises: obtaining a 3D geometry of a chamber surface using an algorithm that generates angles and distances between points on the chamber surface that represent mapping information; applying a cutting curve to at least two points on the chamber surface; and at least partially unfolding at least a portion of the chamber surface along the cutting curve to form a planar projection that optimally preserves the angles and distances between points on the chamber surface.
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Patent Agency Ranking
6.发明申请Systems and methods for visualizing and analyzing cardiac arrhythmias using 2-D planar projection and partially unfolded surface mapping processes 有权使用2-D平面投影和部分解折叠的表面映射过程可视化和分析心律失常的系统和方法公开(公告)号：US20160055681A1
公开(公告)日：2016-02-25
申请号：US14780611
申请日：2014-04-17
Inventor： Lev A. Koyrakh , Eric J. Voth
IPC: G06T19/20 , G06T17/20 , G06T11/00 , A61B5/0408 , A61B5/042
CPC classification number: G06T19/20 , A61B5/0408 , A61B5/0422 , G06T11/00 , G06T17/205 , G06T19/00 , G06T2210/41 , G06T2219/008 , G06T2219/2004 , G06T2219/2008
Abstract: A method for projecting a 3D surface geometry onto a planar projection comprises: obtaining a 3D geometry of a chamber surface using an algorithm that generates angles and distances between points on the chamber surface that represent mapping information; applying a cutting curve to at least two points on the chamber surface; and at least partially unfolding at least a portion of the chamber surface along the cutting curve to form a planar projection that optimally preserves the angles and distances between points on the chamber surface.
Abstract translation: 用于将3D表面几何投影到平面投影上的方法包括：使用产生表示地图信息的腔表面上的点之间的角度和距离的算法来获得腔室表面的3D几何形状; 将切割曲线施加到所述腔室表面上的至少两个点; 并且沿着切割曲线至少部分地展开腔表面的至少一部分以形成最佳地保持腔表面上的点之间的角度和距离的平面突起。
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公开(公告)号：US20210228285A1
公开(公告)日：2021-07-29
申请号：US17166868
申请日：2021-02-03
Inventor： Daniel J. Potter , Lev A. Koyrakh
Abstract: Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may be on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.
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公开(公告)号：US20170164868A1
公开(公告)日：2017-06-15
申请号：US15412097
申请日：2017-01-23
Inventor： Lev A. Koyrakh , Jeffrey A. Schweitzer , Daniel R. Starks , Carlos Carbonera
CPC classification number: A61B5/06 , A61B5/042 , A61B5/05 , A61B5/062 , A61B5/063 , A61B5/7207 , A61B5/7221 , A61B34/20 , A61B2034/2051 , A61B2034/2053 , A61B2034/2072
Abstract: A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.
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公开(公告)号：US09610027B2
公开(公告)日：2017-04-04
申请号：US14471730
申请日：2014-08-28
Inventor： John A. Hauck , Jeffery A. Schweitzer , Lev A. Koyrakh
CPC classification number: A61B5/063 , A61B5/053 , A61B5/6801 , A61B5/742
Abstract: A system and method are provided for determining characteristics of a device electrode disposed on a medical device within a body. A plurality of measurement electrodes are coupled to an external surface of the body and establish transmission paths for current through the body. An electronic control unit (ECU) is configured to cause transmission of current between a pair of active electrodes selected from the measurement electrodes and thereby generate a voltage on the device electrode. The ECU receives impedance signals from a plurality of passive electrodes among the measurement electrodes other than the active electrodes. The ECU establishes a virtual reference electrode at a reference position within the body responsive to the impedance signals and computes a position of the device responsive to the voltage on the device electrode and the reference position of the reference electrode. The ECU may also compute impedances at the device and measurement electrodes.
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公开(公告)号：US10939964B2
公开(公告)日：2021-03-09
申请号：US15609534
申请日：2017-05-31
Inventor： Daniel J. Potter , Lev A. Koyrakh
Abstract: Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may be on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.
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