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公开(公告)号：US06926669B1
公开(公告)日：2005-08-09
申请号：US09685193
申请日：2000-10-10
CPC分类号： A61M25/0147 , A61B18/1492 , A61B2017/00243 , A61B2018/00916 , A61M25/0152 , A61M2025/015 , A61M2025/0161
摘要： Steerable electrophysiology catheters for use in mapping and/or ablation of accessory pathways in myocardial tissue of the heart wall and methods of use thereof are disclosed. The catheter comprises a catheter body and handle, the catheter body having a proximal section and a distal section and manipulators that enable the deflection of a distal segment of the distal tip section with respect to the independently formed curvature of a proximal segment of the distal tip section through a bending or knuckle motion of an intermediate segment between the proximal and distal segments. A wide angular range of deflection within a very small curve or bend radius in the intermediate segment is obtained. At least one distal tip electrode is preferably confined to the distal segment which can have a straight axis extending distally from the intermediate segment. The curvature of the proximal segment and the bending angle of the intermediate segment are independently selectable. The axial alignment of the distal segment with respect to the nominal axis of the proximal shaft section of the catheter body can be varied between substantially axially aligned (0° curvature) in an abrupt knuckle bend through a range of about −90° to about +180° within a bending radius of between about 2.0 mm and 7.0 mm and preferably less than 5.0 mm. The proximal segment curve can be independently formed in a about +180° through about +270° with respect to the axis of the proximal shaft section to provide an optimum angular orientation of the distal electrode(s). The distal segment can comprise a highly flexible elongated distal segment body and electrode(s) that conform with the shape and curvature of the heart wall.
摘要翻译： 公开了用于在心壁的心肌组织中辅助通路的测绘和/或消融的可操纵的电生理学导管及其使用方法。 导管包括导管主体和手柄，导管主体具有近端部分和远端部分以及操纵器，其能够相对于远端尖端的近端段的独立形成的曲率偏转远侧末端部分的远端部分 通过近端段和远端段之间的中间段的弯曲或转向关节运动。 获得在中间段内的非常小的曲线或弯曲半径内的宽的角度范围的偏转。 至少一个远端末端电极优选地限制在远端段，该远段可以具有从中间段向远侧延伸的直轴。 近端段的曲率和中间段的弯曲角度是可独立选择的。 远侧段相对于导管主体的近端轴部分的标称轴线的轴向对准可以在突变关节弯曲部中的大致轴向对准（0°曲率）之间变化约-90°至约+ 弯曲半径为约2.0mm至7.0mm，优选小于5.0mm的180°。 近端段曲线可相对于近轴部分的轴线独立地形成在约-180°至约+ 270°的范围内，以提供远端电极的最佳角度取向。 远端段可以包括高度柔性的细长远端段体和符合心壁的形状和曲率的电极。
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公开(公告)号：US08706260B2
公开(公告)日：2014-04-22
申请号：US13282997
申请日：2011-10-27
申请人： Mark T. Stewart , Johnson E. Goode
发明人： Mark T. Stewart , Johnson E. Goode
IPC分类号： A61F7/00
CPC分类号： A61M25/0147 , A61B18/1492 , A61B2017/00243 , A61B2018/00916 , A61M25/0152 , A61M2025/015 , A61M2025/0161
摘要： A catheter suitable for use in applying ablation energy to body tissue or detecting electrical signals conducted within the body tissue is disclosed. The catheter has a deflectable distal tip section. At least one electrode is adapted to be disposed against body tissue for delivery of ablation energy thereto or for conduction of body tissue electrical signals. An actuation mechanism comprising first and second pull wires is adapted to curve a proximal segment in a first direction and to independently bend an intermediate segment in a second direction.
摘要翻译： 公开了一种适用于向身体组织施加消融能量或检测在身体组织内传导的电信号的导管。 导管具有可偏转的远侧末端部分。 至少一个电极适于设置成抵靠身体组织，用于向其传递消融能量或用于传导人体组织电信号。 包括第一和第二拉线的致动机构适于在第一方向上弯曲近端段并且在第二方向独立地弯曲中间段。
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公开(公告)号：US07706894B2
公开(公告)日：2010-04-27
申请号：US11115028
申请日：2005-04-26
IPC分类号： A61N1/05
CPC分类号： A61M25/0147 , A61B18/1492 , A61B2017/00243 , A61B2018/00916 , A61M25/0152 , A61M2025/015 , A61M2025/0161
摘要： Steerable electrophysiology catheters for use in mapping and/or ablation of accessory pathways in myocardial tissue of the heart wall and methods of use thereof are disclosed. The catheter comprises a catheter body and handle, the catheter body having a proximal section and a distal section and manipulators that enable the deflection of a distal segment of the distal tip section with respect to the independently formed curvature of a proximal segment of the distal tip section through a bending or knuckle motion of an intermediate segment between the proximal and distal segments. A wide angular range of deflection within a very small curve or bend radius in the intermediate segment is obtained. At least one distal tip electrode is preferably confined to the distal segment which can have a straight axis extending distally from the intermediate segment. The curvature of the proximal segment and the bending angle of the intermediate segment are independently selectable. The axial alignment of the distal segment with respect to the nominal axis of the proximal shaft section of the catheter body can be varied between substantially axially aligned (0° curvature) in an abrupt knuckle bend through a range of about −90° to about +180° within a bending radius of between about 2.0 mm and 7.0 mm and preferably less than 5.0 mm. The proximal segment curve can be independently formed in a range of about −180° through about +270° with respect to the axis of the proximal shaft section to provide an optimum angular orientation of the distal electrode(s). The distal segment can comprise a highly flexible elongated distal segment body and electrode(s) that conform with the shape and curvature of the heart wall.
摘要翻译： 公开了用于在心壁的心肌组织中辅助通路的测绘和/或消融的可操纵的电生理学导管及其使用方法。 导管包括导管主体和手柄，导管主体具有近端部分和远端部分以及操纵器，其能够相对于远端尖端的近端段的独立形成的曲率偏转远侧末端部分的远端部分 通过近端段和远端段之间的中间段的弯曲或转向关节运动。 获得在中间段内的非常小的曲线或弯曲半径内的宽的角度范围的偏转。 至少一个远端末端电极优选地限制在远端段，该远段可以具有从中间段向远侧延伸的直轴。 近端段的曲率和中间段的弯曲角度是可独立选择的。 远侧段相对于导管主体的近端轴部分的标称轴线的轴向对准可以在突变关节弯曲部中的大致轴向对准（0°曲率）之间变化约-90°至约+ 弯曲半径为约2.0mm至7.0mm，优选小于5.0mm的180°。 近端段曲线可相对于近轴部分的轴线独立地形成在约-180°至约+ 270°的范围内，以提供远端电极的最佳角度取向。 远端段可以包括高度柔性的细长远端段体和符合心壁的形状和曲率的电极。
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公开(公告)号：US20120078076A1
公开(公告)日：2012-03-29
申请号：US13282997
申请日：2011-10-27
申请人： Mark T. Stewart , Johnson E. Goode
发明人： Mark T. Stewart , Johnson E. Goode
CPC分类号： A61M25/0147 , A61B18/1492 , A61B2017/00243 , A61B2018/00916 , A61M25/0152 , A61M2025/015 , A61M2025/0161
摘要： A catheter suitable for use in applying ablation energy to body tissue or detecting electrical signals conducted within the body tissue is disclosed. The catheter has a deflectable distal tip section. At least one electrode is adapted to be disposed against body tissue for delivery of ablation energy thereto or for conduction of body tissue electrical signals. An actuation mechanism comprising first and second pull wires is adapted to curve a proximal segment in a first direction and to independently bend an intermediate segment in a second direction.
摘要翻译： 公开了一种适用于向身体组织施加消融能量或检测在身体组织内传导的电信号的导管。 导管具有可偏转的远侧末端部分。 至少一个电极适于设置成抵靠身体组织，用于向其传递消融能量或用于传导人体组织电信号。 包括第一和第二拉线的致动机构适于在第一方向上弯曲近端段并且在第二方向独立地弯曲中间段。
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公开(公告)号：US20100168740A1
公开(公告)日：2010-07-01
申请号：US12721895
申请日：2010-03-11
IPC分类号： A61B18/14
CPC分类号： A61M25/0147 , A61B18/1492 , A61B2017/00243 , A61B2018/00916 , A61M25/0152 , A61M2025/015 , A61M2025/0161
摘要： Steerable electrophysiology catheters for use in mapping and/or ablation of accessory pathways in myocardial tissue of the heart wall and methods of use thereof are disclosed. The catheter comprises a catheter body and handle, the catheter body having a proximal section and a distal section and manipulators that enable the deflection of a distal segment of the distal tip section with respect to the independently formed curvature of a proximal segment of the distal tip section through a bending or knuckle motion of an intermediate segment between the proximal and distal segments. A wide angular range of deflection within a very small curve or bend radius in the intermediate segment is obtained. At least one distal tip electrode is preferably confined to the distal segment which can have a straight axis extending distally from the intermediate segment. The curvature of the proximal segment and the bending angle of the intermediate segment are independently selectable. The axial alignment of the distal segment with respect to the nominal axis of the proximal shaft section of the catheter body can be varied between substantially axially aligned (0° curvature) in an abrupt knuckle bend through a range of about −90° to about +180° within a bending radius of between about 2.0 mm and 7.0 mm and preferably less than 5.0 mm. The proximal segment curve can be independently formed in a range of about −180° through about +270° with respect to the axis of the proximal shaft section to provide an optimum angular orientation of the distal electrode(s). The distal segment can comprise a highly flexible elongated distal segment body and electrode(s) that conform with the shape and curvature of the heart wall.
摘要翻译： 公开了用于在心壁的心肌组织中辅助通路的测绘和/或消融的可操纵的电生理学导管及其使用方法。 导管包括导管主体和手柄，导管主体具有近端部分和远端部分以及操纵器，其能够相对于远端尖端的近端段的独立形成的曲率偏转远侧末端部分的远端部分 通过近端段和远端段之间的中间段的弯曲或转向关节运动。 获得在中间段内的非常小的曲线或弯曲半径内的宽的角度范围的偏转。 至少一个远端末端电极优选地限制在远端段，该远段可以具有从中间段向远侧延伸的直轴。 近端段的曲率和中间段的弯曲角度是可独立选择的。 远侧段相对于导管主体的近端轴部分的标称轴线的轴向对准可以在突变关节弯曲部中的大致轴向对准（0°曲率）之间变化约-90°至约+ 弯曲半径为约2.0mm至7.0mm，优选小于5.0mm的180°。 近端段曲线可相对于近轴部分的轴线独立地形成在约-180°至约+ 270°的范围内，以提供远端电极的最佳角度取向。 远端段可以包括高度柔性的细长远端段体和符合心壁的形状和曲率的电极。
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公开(公告)号：US09387031B2
公开(公告)日：2016-07-12
申请号：US13194180
申请日：2011-07-29
申请人： Mark T. Stewart , Jordon D. Honeck
发明人： Mark T. Stewart , Jordon D. Honeck
CPC分类号： A61B18/1492 , A61B18/02 , A61B2018/0022 , A61B2018/00357 , A61B2018/00577 , A61B2018/00613 , A61B2018/00797 , A61B2018/00815 , A61B2018/00821 , A61B2018/00994 , A61B2018/0212 , A61B2018/0237 , A61B2018/0262 , A61B2018/1437
摘要： A medical system, including a catheter body, an elongate body disposed in the catheter body; an expandable element having a proximal portion coupled to the catheter body and a distal portion coupled to the elongate body, the distal portion of the expandable element defining the distal-most portion of the medical device; a mesh or array of longitudinal splines substantially surrounding the expandable element, at least a portion of the mesh or splines being electrically conductive; and a coolant source in fluid communication with the expandable element.
摘要翻译： 医疗系统，包括导管主体，设置在导管主体中的细长主体; 可扩张元件，其具有联接到导管主体的近端部分和联接到细长主体的远端部分，可扩张元件的远端部分限定医疗装置的最远部分; 基本上围绕所述可膨胀元件的纵向花键的网状物或阵列，所述网状物或花键的至少一部分是导电的; 以及与可膨胀元件流体连通的冷却剂源。
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公开(公告)号：US09216050B2
公开(公告)日：2015-12-22
申请号：US13460864
申请日：2012-05-01
CPC分类号： A61B18/1206 , A61B18/1492 , A61B2018/00267 , A61B2018/00577 , A61B2018/00642 , A61B2018/00666 , A61B2018/00678 , A61B2018/00702 , A61B2018/00708 , A61B2018/00779 , A61B2018/00875 , A61B2018/00898
摘要： A method and system for detecting microbubble formation during a radiofrequency ablation procedure. The method includes measuring an impedance of a pair of electrodes, at least one electrode in the pair of electrodes being coupled to a treatment assembly of a medical device. Radiofrequency ablation energy is transmitted between the pair of electrodes. The transmission of radiofrequency ablation energy between the pair of electrodes is terminated when after a predetermined period of time the measured impedance in either of the electrodes in the pair of electrodes is a predetermined percentage above a measured minimum impedance and a measured power is above a predetermined power threshold. An alert is generated indicating at least one of the formation and release of microbubbles proximate the pair of electrodes.
摘要翻译： 一种用于在射频消融过程中检测微泡形成的方法和系统。 该方法包括测量一对电极的阻抗，该对电极中的至少一个电极耦合到医疗装置的治疗组件。 射频消融能量在一对电极之间传输。 在一对电极之间的射频消融能量的传输终止，在预定时间段之后，该对电极中的任一个电极中的测量阻抗比测量的最小阻抗高出预定百分比，并且测量的功率高于预定的时间 功率阈值。 产生警报，指示邻近该对电极的微泡的形成和释放中的至少一个。
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公开(公告)号：US08845631B2
公开(公告)日：2014-09-30
申请号：US12769350
申请日：2010-04-28
IPC分类号： A61B18/12 , A61B5/06 , A61B5/053 , A61B18/00 , A61B5/00 , A61B19/00 , A61B5/01 , A61B5/08 , A61B18/24 , A61B18/02 , A61B18/14 , A61B5/103 , A61B5/0402
CPC分类号： A61B18/1492 , A61B5/01 , A61B5/0402 , A61B5/053 , A61B5/0538 , A61B5/06 , A61B5/063 , A61B5/08 , A61B5/103 , A61B5/6885 , A61B5/7207 , A61B5/743 , A61B18/02 , A61B18/0206 , A61B18/24 , A61B2018/00791 , A61B2018/00875 , A61B2018/0262 , A61B2034/2046 , A61B2090/065 , G06F19/00
摘要： A medical method is provided, including a medical device having a distal assembly including at least one electrode and at least one treatment element, the medical device generating information regarding at least one of a physiological measurement and an operational parameter of the medical device; a plurality of surface electrodes affixable to a skin of the patient, wherein the surface electrodes are in electrical communication with the distal assembly to obtain position information of the medical device; and a processor pairing the position information and the at least one of a physiological measurement and an operational parameter of the medical device.
摘要翻译： 提供了一种医疗方法，包括具有远端组件的医疗装置，所述远端组件包括至少一个电极和至少一个治疗元件，所述医疗装置产生关于所述医疗装置的生理测量和操作参数中的至少一个的信息; 多个表面电极可固定在患者皮肤上，其中表面电极与远端组件电连通以获得医疗装置的位置信息; 以及将所述位置信息和所述医疗装置的生理测量和操作参数中的至少一个配对的处理器。
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公开(公告)号：US08280477B2
公开(公告)日：2012-10-02
申请号：US12511707
申请日：2009-07-29
申请人： Michael Lau , Randell Werneth , Timothy J. Corvi , Sumita Bhola , Mark T. Stewart , Michel Haïssaguerre , Meleze Hocini
发明人： Michael Lau , Randell Werneth , Timothy J. Corvi , Sumita Bhola , Mark T. Stewart , Michel Haïssaguerre , Meleze Hocini
CPC分类号： A61B5/042 , A61B5/6858 , A61B18/1492 , A61B2018/00214 , A61B2018/00839 , A61B2018/00898 , A61N1/06
摘要： Catheters and methods for obtaining monophasic action potential (“MAP”) electrograms include a flexible catheter body defining a longitudinal axis, and a distal assembly affixed to the catheter body distal end defining a distal tip. The distal assembly has at least three MAP recording electrodes, and at least one reference electrode for determining reference potential. The recording electrodes are each positioned a radial distance from the longitudinal axis in at least three different radial directions, defining a recording geometry substantially having radial symmetry. The reference electrode is a longitudinal distance from the recording geometry. Optional features include a steerable catheter shaft, one or more radio-frequency ablation electrodes, and a dedicated pacing electrode. Different possible embodiments include a dome housing having the recording electrodes in a fixed spatial arrangement, and a distal loop assembly having an array of electrodes on at least three flexible loop elements.
摘要翻译： 用于获得单相动作电位（MAP）电描记图的导管和方法包括限定纵向轴线的柔性导管主体，以及固定到导管主体远端的远端组件，其限定远端尖端。 远端组件具有至少三个MAP记录电极和用于确定参考电位的至少一个参考电极。 记录电极各自在至少三个不同的径向方向上与纵向轴线径向距离，限定基本上具有径向对称性的记录几何形状。 参考电极是与记录几何形状的纵向距离。 可选功能包括可导向的导管轴，一个或多个射频消融电极和专用起搏电极。 不同的可能实施例包括具有固定空间布置的记录电极的圆顶壳体和在至少三个柔性环形元件上具有电极阵列的远端环组件。
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10.发明申请ABLATION DEVICE AND METHOD FOR CREATING AN ELONGATE LESION USING SELECTIVELY ACTUATED TRANSDUCER CONTROLLED BY LESION COMPLETION SENSOR 审中-公开使用通过LESION完成传感器控制的选择性致动传感器创建一个ELENATE LESION的消除装置和方法公开(公告)号：US20110208054A1
公开(公告)日：2011-08-25
申请号：US12712613
申请日：2010-02-25
CPC分类号： A61N7/02 , A61B8/485 , A61B8/5223 , A61B2017/00106 , A61B2018/00577 , A61B2018/00839 , A61N2007/0065 , A61N2007/0095 , A61N2007/027
摘要： Device, system and method for evaluating the effectiveness of tissue ablations of a heart of a patient. The tissue is clamped between a pair of opposing jaws. A portion of the tissue is ablated at a first generally linear position on the tissue by applying ablative energy to two of a plurality of elongate electrodes, each of the two of the plurality of elongate electrodes being coupled in opposing relationship to each other and the pair of opposing jaws, respectively. An effectiveness of the ablation is sensed at a second generally linear position on the tissue with at least one of the plurality of elongate electrodes positioned on one of the pair of opposing jaws. The second linear position on the tissue is laterally distal to the first linear position on the tissue with respect to the atrium of the heart.
摘要翻译： 用于评估患者心脏组织消融有效性的装置，系统和方法。 将组织夹在一对相对的夹爪之间。 通过向多个细长电极中的两个施加烧蚀能量，组织的一部分在组织上的第一大致线性位置被消融，多个细长电极中的每一个彼此相对地相互耦合，并且该对 的对颚分别。 在组织上的第二大致直线位置处感测消融的有效性，其中多个细长电极中的至少一个位于一对相对的夹爪中的一个上。 组织上的第二线性位置相对于心脏的心房横向远离组织上的第一线性位置。
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