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    Electrophysiology catheter
    1.
    发明授权
    Electrophysiology catheter 有权

    公开(公告)号：US09918653B2

    公开(公告)日：2018-03-20

    申请号：US13142432

    申请日：2010-01-07

    申请人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    发明人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    IPC分类号： A61B5/053 ,  A61B5/04 ,  A61B5/042

    CPC分类号： A61B5/0422

    摘要： The invention relates to electrophysiology catheter systems and their use, such as in an MRI environment, and in particular to analysis of electric signals from such. An electrophysiology (EP) catheter with a plurality of electrically isolated electrode segments arranged in longitudinally spaced bands around the catheter is used to detect electric signals. A workstation receives the electrical signals which are then processed by a processing unit. Electric signals from electrode segments can be used to determine roll angle information of the catheter in relation to patient anatomy by determining signals from electrode segments in contact with tissue. Also, electric signals can be used to extract a reference signal that can be used to correct for gradient induced artifacts.

    Catheter and medical assembly
    2.
    发明授权
    Catheter and medical assembly 有权
    导管和医疗装配

    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。

    Apparatus and method for applying energy within an object
    3.
    发明授权
    Apparatus and method for applying energy within an object 有权
    在物体内施加能量的装置和方法

    公开(公告)号：US08260433B2

    公开(公告)日：2012-09-04

    申请号：US12529366

    申请日：2008-03-03

    申请人： Bernd David ,  Daniel Wirtz ,  Oliver Lips ,  Steffen Weiss ,  Sascha Krueger

    发明人： Bernd David ,  Daniel Wirtz ,  Oliver Lips ,  Steffen Weiss ,  Sascha Krueger

    IPC分类号： A61N1/00

    CPC分类号： A61N1/08 ,  A61B5/055 ,  A61B2562/222 ,  A61N1/086 ,  A61N1/3718

    摘要： An apparatus for applying energy within an object includes an energy applying unit having an energy emitting element or outputting energy within the object and an energy storage unit locatable within the object and coupled to the energy emitting element. The apparatus further includes an electrical control line coupled to the energy applying unit for controlling the application of energy within the object by controlling transmission of energy from the energy storage unit to the energy emitting element.

    摘要翻译： 用于在物体内施加能量的装置包括具有能量发射元件或在物体内输出能量的能量施加单元和位于物体内的能量存储单元，并耦合到能量发射元件。 该装置还包括耦合到能量施加单元的电气控制线，用于通过控制从能量存储单元到能量发射元件的能量传输来控制物体内的能量的施加。

    CATHETER BEING USABLE IN A MAGNETIC RESONANCE IMAGING SYSTEM
    4.
    发明申请
    CATHETER BEING USABLE IN A MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
    导管可用于磁共振成像系统

    公开(公告)号：US20120101362A1

    公开(公告)日：2012-04-26

    申请号：US13142426

    申请日：2010-01-11

    申请人： Steffen Weiss ,  Oliver Lips ,  Sascha Krueger ,  Bernd David

    发明人： Steffen Weiss ,  Oliver Lips ,  Sascha Krueger ,  Bernd David

    IPC分类号： A61B5/055

    CPC分类号： A61M25/0021 ,  A61B18/1492 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00744 ,  A61B2034/2051 ,  A61B2090/374 ,  A61B2090/3954 ,  A61M25/0082 ,  A61M25/10 ,  A61M2025/0166 ,  G01R33/287

    摘要： The present invention relates to a catheter (2) for applying energy to an object (6) and a magnetic resonance imaging system (1) for localizing the catheter (2). The catheter (2) comprises an energy application element for applying energy to the object (6), and a cavity for providing a magnetic resonance fluid from which magnetic resonance signals generated by the magnetic resonance imaging system (1) are receivable, wherein the cavity is adapted for providing a cooling fluid as the magnetic resonance fluid for cooling the energy application element. The catheter (2) comprises further a tracking coil (15) for tracking the catheter (2), wherein the tracking coil (15) is adapted to receive the magnetic resonance signals from the magnetic resonance fluid. Thus, the magnetic resonance fluid fulfils at least two functions, providing magnetic resonance signals for tracking the catheter (2) and cooling the energy application element.

    摘要翻译： 本发明涉及一种用于向物体（6）施加能量的导管（2）和用于定位导管（2）的磁共振成像系统（1）。 导管（2）包括用于向物体（6）施加能量的能量施加元件，以及用于提供磁共振流体的空腔，可由磁共振成像系统（1）产生的磁共振信号从该共振流体接收，其中腔 适于提供作为用于冷却能量施加元件的磁共振流体的冷却流体。 导管（2）还包括用于跟踪导管（2）的跟踪线圈（15），其中跟踪线圈（15）适于接收来自磁共振流体的磁共振信号。 因此，磁共振流体实现至少两个功能，提供用于跟踪导管（2）并冷却能量施加元件的磁共振信号。

    APPARATUS AND METHOD FOR APPLYING ENERGY WITHIN AN OBJECT
    5.
    发明申请
    APPARATUS AND METHOD FOR APPLYING ENERGY WITHIN AN OBJECT 有权
    在对象中应用能量的装置和方法

    公开(公告)号：US20100016934A1

    公开(公告)日：2010-01-21

    申请号：US12529366

    申请日：2008-03-03

    申请人： Bernd David ,  Daniel Wirtz ,  Oliver Lips ,  Steffen Weiss ,  Sascha Krueger

    发明人： Bernd David ,  Daniel Wirtz ,  Oliver Lips ,  Steffen Weiss ,  Sascha Krueger

    IPC分类号： A61N1/00

    CPC分类号： A61N1/08 ,  A61B5/055 ,  A61B2562/222 ,  A61N1/086 ,  A61N1/3718

    摘要： The invention relates to an apparatus for applying energy within an object. The apparatus comprises an energy applying unit (8, 9), which includes an energy emitting element (9) for outputting energy within the object and an energy storage unit (8) locatable within the object and coupled to the energy emitting element. The apparatus comprises further an electrical control line (12) coupled to the energy applying unit for controlling the application of energy within the object by controlling a transmission of energy from the energy storage unit to the energy emitting element. The invention relates further to a corresponding method and a corresponding computer program.

    摘要翻译： 本发明涉及一种在物体内施加能量的装置。 该装置包括能量施加单元（8,9），其包括用于在物体内输出能量的能量发射元件（9）和位于物体内的能量存储单元（8），并耦合到能量发射元件。 该装置还包括耦合到能量施加单元的电气控制线（12），用于通过控制从能量存储单元到能量发射元件的能量传输来控制物体内的能量的施加。 本发明进一步涉及相应的方法和相应的计算机程序。

    ELECTROPHYSIOLOGY CATHETER
    6.
    发明申请
    ELECTROPHYSIOLOGY CATHETER 有权
    电生理导管

    公开(公告)号：US20110275951A1

    公开(公告)日：2011-11-10

    申请号：US13142432

    申请日：2010-01-07

    申请人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    发明人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    IPC分类号： A61B5/053 ,  A61B5/04

    CPC分类号： A61B5/0422

    摘要： The invention relates to electrophysiology catheter systems and their use, such as in an MRI environment, and in particular to analysis of electric signals from such. An electrophysiology (EP) catheter with a plurality of electrically isolated electrode segments arranged in longitudinally spaced bands around the catheter is used to detect electric signals. A workstation receives the electrical signals which are then processed by a processing unit. Electric signals from electrode segments can be used to determine roll angle information of the catheter in relation to patient anatomy by determining signals from electrode segments in contact with tissue. Also, electric signals can be used to extract a reference signal that can be used to correct for gradient induced artefacts.

    摘要翻译： 本发明涉及电生理学导管系统及其用途，例如在MRI环境中，特别涉及从其中分析电信号。 使用具有多个电隔离电极段的电生理学（EP）导管，其围绕导管以纵向间隔的带布置，以检测电信号。 工作站接收然后由处理单元处理的电信号。 来自电极段的电信号可用于通过确定与组织接触的电极段的信号来确定导管相对于患者解剖结构的侧倾角信息。 此外，电信号可以用于提取可用于校正梯度诱导伪像的参考信号。

    TRANSMISSION LINE FOR RF SIGNALS WITHOUT MATCHING NETWORKS
    7.
    发明申请
    TRANSMISSION LINE FOR RF SIGNALS WITHOUT MATCHING NETWORKS 有权
    无匹配网络的射频信号传输线

    公开(公告)号：US20100094123A1

    公开(公告)日：2010-04-15

    申请号：US12524001

    申请日：2008-01-24

    申请人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    发明人： Oliver Lips ,  Bernd David ,  Sascha Krueger ,  Steffen Weiss

    IPC分类号： A61B5/05

    CPC分类号： G01R33/287 ,  G01R33/288 ,  G01R33/3628

    摘要： The present invention relates to an electrically conductive transmission line for transmitting RF signals, in particular for transmitting MR signals between a transmission and/or receiving coil (11) and a transmitting and/or receiving unit (12), by which separate known matching networks can be avoided or reduced. A transmission line is proposed comprising a plurality of lead segments (31) coupled only by transformers (32, 33) having a transformer impedance ZL placed between two neighbouring lead segments, wherein for power matching of the two transformers (32, 33) placed at opposite ends of a lead segment (31) said lead segment (31) has a low lead segment impedance Zo and/or a high dielectric constant εr and wherein said lead segment (31) has a short length 1. Thus, the lead segments themselves provide the matching of the transformers, and separate matching circuits are no longer needed.

    摘要翻译： 本发明涉及一种用于发送RF信号的导电传输线，特别是用于在发射和/或接收线圈（11）与发射和/或接收单元（12）之间发射MR信号，通过该传输线单独的已知匹配网络 可以避免或减少。 提出一种传输线，其包括多个引线段（31），其仅由放置在两个相邻引线段之间的变压器阻抗ZL的变压器（32,33）耦合，其中为了将两个变压器（32,33）的功率匹配放置在 引线段（31）的相对端，所述引线段（31）具有低引线段阻抗Zo和/或高介电常数ε，并且其中所述引线段（31）具有短的长度1.因此，引线 段本身提供变压器的匹配，不再需要单独的匹配电路。

    MR imaging system with cardiac coil and defibrillator
    10.
    发明申请
    MR imaging system with cardiac coil and defibrillator 审中-公开
    具有心脏线圈和除颤器的MR成像系统

    公开(公告)号：US20120165653A1

    公开(公告)日：2012-06-28

    申请号：US13391849

    申请日：2010-09-15

    申请人： Steffen Weiss ,  Bernd David ,  Oliver Lips ,  Sascha Krueger

    发明人： Steffen Weiss ,  Bernd David ,  Oliver Lips ,  Sascha Krueger

    IPC分类号： A61B5/055 ,  A61N1/39 ,  A61N1/04

    CPC分类号： G01R33/3415 ,  A61B5/0044 ,  G01R33/28

    摘要： The invention relates to a magnetic resonance imaging system comprising a main magnet coil (2) for generating a uniform, steady magnetic field within an examination volume, a number of gradient coils (4, 5, 6) for generating switched magnetic field gradients in different spatial directions within the examination volume, at least one cardiac RF coil (11) for transmitting RF pulses to and/or receiving MR signals from the chest region of a body (10) of a patient positioned in the examination volume, a control unit (13) for controlling the temporal succession of RF pulses and switched magnetic field gradients, and a reconstruction unit (15) for reconstructing a MR image from the MR signals. In order to enable quick and safe defibrillation at any time during a MR imaging procedure, the invention proposes that at least one opening (19, 22) is provided in the cardiac RF coil (11), through which opening (19, 22) a portion of the skin surface in the chest region of the body (10) is accessible, wherein the magnetic resonance imaging system further comprises a defibrillator unit (17) connected to at least one defibrillator electrode (23) fitting through the at least one opening (19, 22) provided in the cardiac RF coil (11). Alternatively, the invention proposes that at least one defibrillator cable (30) is affixed to the cardiac RF coil (11), wherein the defibrillator unit (17) is connectable to at least one defibrillator electrode pad (26) via the at least one defibrillator cable (30).

    摘要翻译： 本发明涉及一种磁共振成像系统，包括用于在检查体积内产生均匀的稳定磁场的主磁体线圈（2），用于产生不同的开关磁场梯度的梯度线圈（4,5,6） 在检查体积内的空间方向，至少一个心脏RF线圈（11），用于将RF脉冲发送到和/或从定位在检查体积中的患者的身体（10）的胸部区域接收MR信号;控制单元 13），用于控制RF脉冲和切换磁场梯度的时间连续性;以及重建单元（15），用于从MR信号重构MR图像。 为了在MR成像过程中的任何时间实现快速和安全的除颤，本发明提出在心脏RF线圈（11）中提供至少一个开口（19,22），开口（19,22）a 身体（10）的胸部区域中的皮肤表面的部分是可接近的，其中所述磁共振成像系统还包括除颤器单元（17），所述除颤器单元连接到至少一个除颤器电极（23），所述除颤器电极（23）通过所述至少一个开口 19，22）设置在心脏RF线圈（11）中。 或者，本发明提出，至少一个除颤器电缆（30）固定到心脏RF线圈（11），其中除颤器单元（17）可以经由至少一个除颤器（17）连接到至少一个除颤器电极焊盘（26） 电缆（30）。