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公开(公告)号：US08285365B2
公开(公告)日：2012-10-09
申请号：US12438144
申请日：2007-08-20
申请人： Steffen Weiss , Bernhard Gleich
发明人： Steffen Weiss , Bernhard Gleich
IPC分类号： A61B5/05
CPC分类号： G01R33/34084 , A61B5/042 , A61B5/06 , A61B18/1492 , A61B2034/2051 , A61B2090/374 , A61B2562/222 , G01R33/287 , G01R33/288 , G01R33/34053 , G01R33/3628
摘要： A interventional device for RF ablation for use in a RF electrical and/or magnetic field especially of a MR imaging system is disclosed, comprising an ablation catheter which is preferably trackable or can be guided or visualized in the image generated by the MR imaging system by means of a MR micro-coil (102), and which is provided with an ablation electrode (101). The interventional device further comprises a transmission path (103) with line segments (104′, 104″) and transformers (105) therebetween, for connecting the MR micro-coil (102) in a differential mode with a MR receiver (108) and for connecting a RF amplifier (107) in a common mode with the ablation electrode (101) for conveying RF ablation power.
摘要翻译： 公开了用于RF电和/或磁场特别是MR成像系统的用于RF消融的介入装置，其包括消融导管，该消融导管优选可追踪或可由MR成像系统由图像生成的图像中引导或可视化 MR微型线圈（102）的装置，并且设置有消融电极（101）。 介入装置还包括在其间具有线段（104'，104“）和变压器（105）的传输路径（103），用于以差分模式将MR微型线圈（102）与MR接收器（108）和 用于将共模的RF放大器（107）与用于传送RF消融功率的消融电极（101）连接。
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公开(公告)号：US20080278168A1
公开(公告)日：2008-11-13
申请号：US11571006
申请日：2005-06-23
申请人： Steffen Weiss , Bernhard Gleich , Peter Vernickel
发明人： Steffen Weiss , Bernhard Gleich , Peter Vernickel
IPC分类号： G01R33/28
CPC分类号： G01R33/287 , G01R33/288
摘要： An electrically conductive link (connection lead) or transmission line (13) comprising at least one transformer (41, 42; 83) for coupling at least two lead segments (51, 52; 81, 82) of the line (13) and for providing safety of the line when guided through a RF field is disclosed. Furthermore, an electrical device (10) in combination with such a conductive link or transmission line (13) and a method for manufacturing thereof are disclosed. These lines are especially provided for use with a magnetic resonance (MR) imaging system and for connecting an electrical device (10), especially a catheter or another invasive device for the examination of a human body, to a connection unit (12) such as, for example, a power supply or control unit outside the examination zone (1) without imposing the risk of disturbances and/or destruction of the electrical device and/or the connection unit and of burning a patient (P) by a heating of the line when guided through RF fields.
摘要翻译： 包括至少一个变压器（41,42; 83）的导电连接（连接引线）或传输线（13），用于联接线（13）的至少两个引线段（51,52; 81,82），并用于 公开了当通过RF场引导时线路的安全性。 此外，公开了与这种导电连接或传输线（13）组合的电气装置（10）及其制造方法。 这些线路特别提供用于与磁共振（MR）成像系统一起使用，并且用于将电气设备（10），特别是用于人体检查的导管或另一侵入性装置连接到连接单元（12），例如 例如，在检查区（1）外部的电源或控制单元，而不会施加电气设备和/或连接单元的干扰和/或破坏的风险，并且通过加热 通过射频场引导。
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公开(公告)号：US07750637B2
公开(公告)日：2010-07-06
申请号：US11571006
申请日：2005-06-23
申请人： Steffen Weiss , Bernhard Gleich , Peter Vernickel
发明人： Steffen Weiss , Bernhard Gleich , Peter Vernickel
IPC分类号： G01V3/00
CPC分类号： G01R33/287 , G01R33/288
摘要： An electrically conductive link (connection lead) or transmission line (13) including at least one transformer (41, 42; 83) for coupling at least two lead segments (51, 52; 81, 82) of the line (13) and for providing safety of the line when guided through a RF field. These lines are especially provided for use with a magnetic resonance (MR) imaging system and for connecting an electrical device (10), especially a catheter or another invasive device for the examination of a human body, to a connection unit (12) such as, for example, a power supply or control unit outside the examination zone (1) without imposing the risk of disturbances and/or destruction of the electrical device and/or the connection unit and of burning a patient (P) by a heating of the line when guided through RF fields.
摘要翻译： 包括至少一个变压器（41,42; 83）的导电连接（连接引线）或传输线（13），用于连接线（13）的至少两个引线段（51,52; 81,82） 在通过RF场引导时提供线路的安全性。 这些线路特别提供用于与磁共振（MR）成像系统一起使用，并且用于将电气设备（10），特别是用于人体检查的导管或另一侵入性装置连接到连接单元（12），例如 例如，在检查区（1）外部的电源或控制单元，而不会施加电气设备和/或连接单元的干扰和/或破坏的风险，并且通过加热 通过射频场引导。
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4.发明申请公开(公告)号：US20070229079A1
公开(公告)日：2007-10-04
申请号：US11568117
申请日：2005-04-21
申请人： Peter Vernickel , Steffen Weiss , Bernhard Gleich
发明人： Peter Vernickel , Steffen Weiss , Bernhard Gleich
IPC分类号： G01R33/36
CPC分类号： G01R33/3685 , G01R33/285 , G01R33/288 , G01R33/34084
摘要： A magnetic resonance imaging system is provided with one or more electrical accessory devices, for example, catheters (10) or RF surface coils (6), which are intended for use during the examination of an object, as well as with a connection lead (13) which is arranged so as to extend through an examination zone (1) of the magnetic resonance imaging apparatus, which zone can be exposed to an RF field, and to connect the accessory device to a connection unit (12). In order to avoid heating of the connection lead (13) due to common mode currents induced in the connection lead by the RF field, which currents could lead to injury of a patient or damage of the accessory device or the connection unit (12), the connection lead (13) comprises at least two lead segment (131, 132, . . . ) which are coupled to one another via a transformer (141) and at least one matching network (151, 152) comprising at least one T-, L- and/or π-quadrupole, which each comprise at least two impedance elements in the form of a capacitor and/or an inductivity, between a lead segment (131; 132) and the inductive coupling element (141) for matching the impedances of both.
摘要翻译： 磁共振成像系统设置有一个或多个电气附件装置，例如导管（10）或RF表面线圈（6），其用于在检查物体期间使用，以及连接引线（ 13），其布置成延伸穿过磁共振成像设备的检查区域（1），该区域可以暴露于RF场，并将附件设备连接到连接单元（12）。 为了避免由连接引线在RF场引起的共模电流引起的连接引线（13）的加热，哪些电流可能导致患者的伤害或附件装置或连接单元（12）的损坏， 所述连接引线（13）包括经由变压器（141）和至少一个匹配网络（151,152）彼此耦合的至少两个引线段（131,132 ......），所述至少一个匹配网络包括至少一个T- ，L-和/或π-四极，其在引线段（131; 132）和电感耦合元件（141）之间各自包括电容器形式的至少两个阻抗元件和/或电感，用于将 两者的阻力。
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公开(公告)号：US20100004528A1
公开(公告)日：2010-01-07
申请号：US12438144
申请日：2007-08-20
申请人： Steffen Weiss , Bernhard Gleich
发明人： Steffen Weiss , Bernhard Gleich
CPC分类号： G01R33/34084 , A61B5/042 , A61B5/06 , A61B18/1492 , A61B2034/2051 , A61B2090/374 , A61B2562/222 , G01R33/287 , G01R33/288 , G01R33/34053 , G01R33/3628
摘要： A interventional device for RF ablation for use in a RF electrical and/or magnetic field especially of a MR imaging system is disclosed, comprising an ablation catheter which is preferably trackable or can be guided or visualized in the image generated by the MR imaging system by means of a MR micro-coil (102), and which is provided with an ablation electrode (101). The interventional device further comprises a transmission path (103) with line segments (104′, 104″) and transformers (105) therebetween, for connecting the MR micro-coil (102) in a differential mode with a MR receiver (108) and for connecting a RF amplifier (107) in a common mode with the ablation electrode (101) for conveying RF ablation power.
摘要翻译： 公开了用于RF电和/或磁场特别是MR成像系统的用于RF消融的介入装置，其包括消融导管，该消融导管优选可追踪或可由MR成像系统由图像生成的图像中引导或可视化 MR微型线圈（102）的装置，并且设置有消融电极（101）。 介入装置还包括在其间具有线段（104'，104“）和变压器（105）的传输路径（103），用于以差分模式将MR微型线圈（102）与MR接收器（108）相连接， 并且用于将普通模式的RF放大器（107）与用于传送RF消融功率的消融电极（101）连接。
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公开(公告)号：US20090251236A1
公开(公告)日：2009-10-08
申请号：US11721175
申请日：2005-12-15
IPC分类号： H01P5/04
CPC分类号： G01R33/287 , G01R33/3642 , G01R33/3685
摘要： A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which each have an effective length of approximately λi/4, wherein λi is the wavelength of a differential mode signal to be transmitted over the path (13). By providing these element (30, 31) in the form of distributed elements which electrically extend over at least a part of adjacent lead segments (20, 21; 21, 22) a very thin transmission path (13) can be realized, which is especially suitable for use with invasive catheters. Furthermore, this path (13) can be guided through RF fields of a magnetic resonance (MR) imaging system because common mode resonances are effectively suppressed.
摘要翻译： 公开了一种用于传输高频（RF）信号的传输路径（13），其包括多个引线段（20,21,22），其在一端通过电容耦合元件（30）彼此耦合并且接通 另一端由电感耦合元件（31）构成，每一个具有大约lambdai / 4的有效长度，其中lambdai是在路径（13）上传输的差模信号的波长。 通过以分布式元件的形式提供这些元件（30,31），该分布元件在相邻引线段（20,21; 21,22）的至少一部分上电延伸，可以实现非常薄的传输路径（13） 特别适用于侵入性导管。 此外，由于共模谐振被有效地抑制，所以该路径（13）可以被引导到磁共振（MR）成像系统的RF场。
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公开(公告)号：US20080230715A1
公开(公告)日：2008-09-25
申请号：US11997417
申请日：2006-07-25
申请人： Tim Nielsen , Udo Van Stevendaal , Bernhard Gleich , Tobias Schaeffter , Paul Haaker , Peter Mazurkewitz , Steffen Weiss
发明人： Tim Nielsen , Udo Van Stevendaal , Bernhard Gleich , Tobias Schaeffter , Paul Haaker , Peter Mazurkewitz , Steffen Weiss
IPC分类号： G01J1/58
CPC分类号： A61B5/0059 , A61B5/05
摘要： An optical imaging apparatus (100) for examination of an object of interest (101), the optical imaging apparatus (100) comprising an optical radiation source (102) adapted to emit a primary optical radiation beam onto the object of interest (101), an optical radiation detector (106) adapted to detect a secondary optical radiation beam emitted by the object of interest (101) upon absorbing the primary optical radiation beam, a magnetic field generating element (107) adapted to generate an inhomogeneous magnetic field varying along an extension of the object of interest (101), and a determination unit (108) adapted to determine information concerning the object of interest (101) based on an analysis of the detected secondary optical radiation beam in combination with an analysis of the inhomogeneous magnetic field.
摘要翻译： 一种用于检查感兴趣物体（101）的光学成像设备（100），所述光学成像设备（100）包括适于将主要光辐射束发射到感兴趣对象（101）上的光辐射源（102） 适于在吸收主光辐射束时检测由感兴趣物体（101）发射的次级光辐射束的光学辐射检测器（106），适于产生沿着所述第一光辐射束变化的非均匀磁场的磁场产生元件（107） 感兴趣对象的扩展（101），以及确定单元（108），其适于基于对所检测到的次级光辐射束的分析来确定与感兴趣对象（101）有关的信息，以及非均匀磁场的分析 。
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公开(公告)号：US08565857B2
公开(公告)日：2013-10-22
申请号：US12440252
申请日：2007-09-07
申请人： Oliver Lips , Bernd David , Bernhard Gleich , Sascha Krueger , Steffen Weiss , Daniel Wirtz
发明人： Oliver Lips , Bernd David , Bernhard Gleich , Sascha Krueger , Steffen Weiss , Daniel Wirtz
IPC分类号： A61B5/05
CPC分类号： A61B5/042 , A61B5/0428 , A61B5/055 , A61B2562/222 , A61N1/056 , A61N1/086 , A61N1/3625 , A61N1/3718 , G01R33/287
摘要： The present invention relates to a catheter (6) comprising: a connector (65, 66) at a proximal side of the catheter for connecting the catheter to an external signal transmission/receiving unit (10) for transmitting and/or receiving signals, an electrode (63, 64) at a distal side of the catheter, and an electrical connection including an electrical wire (61, 62) for electrically connecting the electrode and the connector for the transmission of signals between the electrode and the connector, wherein the electrical connection has a high electrical resistance of at least 1 kΩ, in particular of at least 5 kΩ. Thus, the present invention provides a solution to prevent excessive heating during EP interventions under MR guidance by using highly resistive wires and or lumped resistors as connections within catheters.
摘要翻译： 本发明涉及一种导管（6），包括：在导管的近侧的连接器（65,66），用于将导管连接到用于传输和/或接收信号的外部信号传输/接收单元（10）， 电极（63,64），以及包括用于电连接电极和连接器以用于在电极和连接器之间传输信号的电线（61,62）的电连接，其中电气 连接具有至少1kOmega的高电阻，特别是至少5kOmega。 因此，本发明提供了一种解决方案，通过使用高电阻丝和/或集总电阻作为导管内的连接，在MR引导下的EP干预期间防止过度加热。
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公开(公告)号：US07777588B2
公开(公告)日：2010-08-17
申请号：US11721175
申请日：2005-12-15
CPC分类号： G01R33/287 , G01R33/3642 , G01R33/3685
摘要： A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which each have an effective length of approximately λi/4, wherein λi is the wavelength of a differential mode signal to be transmitted over the path (13). By providing these element (30, 31) in the form of distributed elements which electrically extend over at least a part of adjacent lead segments (20, 21; 21, 22) a very thin transmission path (13) can be realized, which is especially suitable for use with invasive catheters. Furthermore, this path (13) can be guided through RF fields of a magnetic resonance (MR) imaging system because common mode resonances are effectively suppressed.
摘要翻译： 公开了一种用于传输高频（RF）信号的传输路径（13），其包括多个引线段（20,21,22），其在一端通过电容耦合元件（30）彼此耦合并且接通 另一端由电感耦合元件（31）构成，每一个有效长度约为λi/ 4，其中λi是通过路径（13）传输的差模信号的波长。 通过以分布式元件的形式提供这些元件（30,31），该分布元件在相邻引线段（20,21; 21,22）的至少一部分上电延伸，可以实现非常薄的传输路径（13） 特别适用于侵入性导管。 此外，由于共模谐振被有效地抑制，所以该路径（13）可以被引导到磁共振（MR）成像系统的RF场。
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10.发明授权公开(公告)号：US07728594B2
公开(公告)日：2010-06-01
申请号：US11568117
申请日：2005-04-21
申请人： Peter Vernickel , Steffen Weiss , Bernhard Gleich
发明人： Peter Vernickel , Steffen Weiss , Bernhard Gleich
IPC分类号： G01V3/00
CPC分类号： G01R33/3685 , G01R33/285 , G01R33/288 , G01R33/34084
摘要： A magnetic resonance imaging system is provided with one or more electrical accessory devices, for example, catheters (10) or RF surface coils (6), which are intended for use during the examination of an object, as well as with a connection lead (13) which is arranged so as to extend through an examination zone (1) of the magnetic resonance imaging apparatus, which zone can be exposed to an RF field, and to connect the accessory device to a connection unit (12). In order to avoid heating of the connection lead (13) due to common mode currents induced in the connection lead by the RF field, which currents could lead to injury of a patient or damage of the accessory device or the connection unit (12), the connection lead (13) comprises at least two lead segment (131, 132, . . . ) which are coupled to one another via a transformer (141) and at least one matching network (151, 152) comprising at least one T-, L- and/or π-quadrupole, which each comprise at least two impedance elements in the form of a capacitor and/or an inductivity, between a lead segment (131; 132) and the inductive coupling element (141) for matching the impedances of both.
摘要翻译： 磁共振成像系统设置有一个或多个电气附件装置，例如导管（10）或RF表面线圈（6），其用于在检查物体期间使用，以及连接引线（ 13），其布置成延伸穿过磁共振成像设备的检查区域（1），该区域可以暴露于RF场，并将附件设备连接到连接单元（12）。 为了避免由连接引线在RF场引起的共模电流引起的连接引线（13）的加热，哪些电流可能导致患者的伤害或附件装置或连接单元（12）的损坏， 所述连接引线（13）包括经由变压器（141）和至少一个匹配网络（151,152）彼此耦合的至少两个引线段（131,132 ......），所述至少一个匹配网络包括至少一个T- ，和L-或/或四极杆，其在引线段（131; 132）和感应耦合元件（141）之间各自包括电容器形式的至少两个阻抗元件和/或电感，用于匹配 两者的阻力。
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