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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: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: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:US07029470B2
公开(公告)日:2006-04-18
申请号:US10685236
申请日:2003-10-14
申请人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
发明人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
CPC分类号: A61B18/1445 , A61B5/04 , A61B18/12 , A61B2018/00065 , A61B2018/00363 , A61B2018/00577 , A61B2018/00654 , A61B2018/00702 , A61B2018/00755 , A61B2018/00779 , A61B2018/00791 , A61B2018/00839 , A61B2018/00875 , A61B2018/1226 , A61B2018/1253 , A61B2018/126 , A61B2018/1467 , A61B2018/1472 , A61B2218/002 , A61N1/403
摘要: A system and method for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the depolarization signal in a local electrogram taken using electrodes located adjacent the tissue to be ablated. Following onset of application of ablation energy to heart tissue, the local electrogram is measured with electrodes located adjacent tissue to be ablated so that the ablation energy to ablation elements can be selectively reduced or terminated when transmurality is detected.
摘要翻译: 用于创建病变并评估其完整性或透视性的系统和方法。 病变透壁度的评估是通过使用邻近待消融组织的电极拍摄的局部电描记图来监测去极化信号来实现的。 在开始将消融能量施加到心脏组织之后,用邻近待组织的组织的电极测量局部电描记图,以便当检测到透视时,消融元件的消融能量可被选择性地减少或终止。
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公开(公告)号:US07824399B2
公开(公告)日:2010-11-02
申请号:US11355465
申请日:2006-02-16
申请人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
发明人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
IPC分类号: A61B18/18
CPC分类号: A61B18/1445 , A61B5/04 , A61B18/12 , A61B2018/00065 , A61B2018/00363 , A61B2018/00577 , A61B2018/00654 , A61B2018/00702 , A61B2018/00755 , A61B2018/00779 , A61B2018/00791 , A61B2018/00839 , A61B2018/00875 , A61B2018/1226 , A61B2018/1253 , A61B2018/126 , A61B2018/1467 , A61B2018/1472 , A61B2218/002 , A61N1/403
摘要: A system and method for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the depolarization signal in a local electrogram taken using electrodes located adjacent the tissue to be ablated. Following onset of application of ablation energy to heart tissue, the local electrogram is measured with electrodes located adjacent tissue to be ablated so that the ablation energy to ablation elements can be selectively reduced or terminated when transmurality is detected.
摘要翻译: 用于创建病变并评估其完整性或透视性的系统和方法。 病变透壁度的评估是通过使用邻近待消融组织的电极拍摄的局部电描记图来监测去极化信号来实现的。 在开始将消融能量施加到心脏组织之后,用邻近待组织的组织的电极测量局部电描记图,以便当检测到透视时,消融元件的消融能量可被选择性地减少或终止。
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公开(公告)号:US06663627B2
公开(公告)日:2003-12-16
申请号:US10132392
申请日:2002-04-24
申请人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
发明人: David E. Francischelli , Eduardo N. Warman , Rahul Mehra , Mark T. Stewart , James R. Skarda , Harry Puryear , David Schwartzman
IPC分类号: A61B1818
CPC分类号: A61B18/1445 , A61B5/04 , A61B18/12 , A61B2018/00065 , A61B2018/00363 , A61B2018/00577 , A61B2018/00654 , A61B2018/00702 , A61B2018/00755 , A61B2018/00779 , A61B2018/00791 , A61B2018/00839 , A61B2018/00875 , A61B2018/1226 , A61B2018/1253 , A61B2018/126 , A61B2018/1467 , A61B2018/1472 , A61B2218/002 , A61N1/403
摘要: A system and method for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the depolarization signal amplitude in a local electrogram taken using electrodes located adjacent the tissue to be ablated. Following onset of application of ablation energy to heart tissue, the amplitude of a local electrogram measured with electrodes located adjacent tissue to be ablated first gradually drops and then stabilizes, indicating that the tissue being monitored has ceased making any contribution to the sensed electrogram. The amplitude drop and/or the following amplitude plateau may be used alone or together as indicators of transmurality. Detection of a rapid drop in amplitude may be employed as an indicator that the ablation process is proceeding too quickly and may be employed to trigger a reduction in the power of applied ablation energy. Detection of an insufficiently rapid drop in amplitude may be employed as an indicator that the ablation process is proceeding too slowly and may be employed to trigger an increase in the power of applied ablation energy.
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公开(公告)号:US20100204716A1
公开(公告)日:2010-08-12
申请号:US12768200
申请日:2010-04-27
申请人: Mark T. Stewart , Alison Lutterman , David E. Francischelli , Leonard H. Leuer , Daneil C. Haeg , Marie T. Steinbrink , Roderick E. Briscoe , Tom P. Daigel , Eduardo N. Warman , Paul T. Rothstein , Phillip C. Falkner , Douglas A. Hettrick , David J.S. Kim , Steven C. Christian
发明人: Mark T. Stewart , Alison Lutterman , David E. Francischelli , Leonard H. Leuer , Daneil C. Haeg , Marie T. Steinbrink , Roderick E. Briscoe , Tom P. Daigel , Eduardo N. Warman , Paul T. Rothstein , Phillip C. Falkner , Douglas A. Hettrick , David J.S. Kim , Steven C. Christian
IPC分类号: A61B17/128 , A61B17/122
CPC分类号: A61B17/12 , A61B17/0057 , A61B17/12009 , A61B17/12013 , A61B17/122 , A61B17/128 , A61B17/1285 , A61B90/39 , A61B2017/00243 , A61B2017/00575 , A61B2017/12018 , A61B2017/306
摘要: Some embodiments of the invention provide a system for occluding a left atrial appendage of a patient. Some embodiments of the system can include a ring occluder that can be positioned around the left atrial appendage and a ring applicator to position the ring occluder with respect to the left atrial appendage. One embodiment discloses a method of accessing endocardial surfaces of the heart through the atrial appendage. Additional embodiments of the invention provide a clip occluder that can be positioned around the left atrial appendage. A clip applicator can position the clip occluder with respect to the left atrial appendage.
摘要翻译: 本发明的一些实施例提供一种用于闭塞患者左心耳的系统。 该系统的一些实施例可以包括可以围绕左心耳定位的环封闭器和环施加器来相对于左心耳定位环封闭器。 一个实施例公开了通过心房接近心脏心脏表面的方法。 本发明的另外的实施例提供了可以围绕左心耳定位的夹子封堵器。 夹子施放器可以相对于左心耳定位夹子封堵器。
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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: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: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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