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    MR imaging system with cardiac coil and defibrillator
    3.
    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）。

    Transmission line for RF signals without matching networks
    4.
    发明授权
    Transmission line for RF signals without matching networks 有权
    射频信号传输线，无匹配网络

    公开(公告)号：US08571630B2

    公开(公告)日：2013-10-29

    申请号：US12524001

    申请日：2008-01-24

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

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

    IPC分类号： A61B5/05

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

    摘要： An electrically conductive transmission line for transmitting RF signals, in particular for transmitting MR signals between a transmission and/or receiving coil and a transmitting and/or receiving unit, by which separate known matching networks can be avoided or reduced. A transmission line is proposed comprising a plurality of lead segments coupled by transformers having a transformer impedance ZL placed between two neighboring lead segments, wherein for power matching of the two transformers placed at opposite ends of a lead segment, the lead segment has a lead segment impedance Z0 or a dielectric constant ∈r and wherein the lead segment has a short length l. Thus, the lead segments themselves provide the matching of the transformers, and separate matching circuits are no longer needed.

    摘要翻译： 用于发送RF信号的导电传输线，特别是用于在发射和/或接收线圈与发射和/或接收单元之间发射MR信号，通过该传输线可以避免或减少单独的已知匹配网络。 提出了一种传输线，其包括由变压器耦合的多个引线段，所述变压器具有置于两个相邻引线段之间的变压器阻抗ZL，其中对于放置在引线段相对端的两个变压器的功率匹配，引线段具有引线段 阻抗Z0或介电常数Er，并且其中引线段具有短的长度l。 因此，引线段本身提供变压器的匹配，并且不再需要单独的匹配电路。

    Transmission line for use in magnetic resonance system
    5.
    发明授权
    Transmission line for use in magnetic resonance system 有权
    用于磁共振系统的传输线

    公开(公告)号：US08228065B2

    公开(公告)日：2012-07-24

    申请号：US12520182

    申请日：2007-12-20

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

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

    IPC分类号： G01V3/00 ,  A61B5/05

    CPC分类号： G01R33/287 ,  G01R33/288

    摘要： An electrically conductive transmission cable for supplying a DC signal safely to an electrical device in the presence of radio-frequency (RF) fields in a magnetic resonance (MR) is disclosed herein. The transmission cable comprises a transmission line (STL) comprising at least a first segment (S1) and a second segment (S2), wherein the first and second segments are electrically connected to each other by a reactive coupling unit (103), and a rectifier unit (101) connected to the transmission line and configured to extract the DC signal (203) from the modulated DC signal (201). The extracted DC signal may be supplied to an electrical device or used for cardiac pacing. The transmission cable finds application in auxiliary devices used in an MR environment, for example an interventional catheter with or without an active tracking circuit (301).

    摘要翻译： 本文公开了一种用于在磁共振（MR）中存在射频（RF）场的情况下将DC信号安全地提供给电气设备的导电传输电缆。 传输电缆包括至少包括第一段（S1）和第二段（S2）的传输线（STL），其中第一和第二段通过无功耦合单元（103）彼此电连接，并且 整流单元（101），连接到所述传输线并且被配置为从所述调制的DC信号（201）提取所述DC信号（203）。 所提取的DC信号可以被提供给电气设备或用于心脏起搏。 传输电缆可用于在MR环境中使用的辅助设备中，例如具有或不具有主动跟踪电路（301）的介入导管。

    INTERVENTIONAL MR IMAGING WITH MOTION COMPENSATION
    6.
    发明申请
    INTERVENTIONAL MR IMAGING WITH MOTION COMPENSATION 有权
    具有运动补偿的传统成像

    公开(公告)号：US20120070056A1

    公开(公告)日：2012-03-22

    申请号：US13266261

    申请日：2010-04-14

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

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

    IPC分类号： G06K9/00

    CPC分类号： G01R33/5673 ,  A61B5/055 ,  A61B5/064 ,  A61B5/7207 ,  A61B2034/2051 ,  G01R33/287 ,  G01R33/4824 ,  G01R33/56509

    摘要： The invention relates to a method of MR imaging of a moving portion (22) of a body (10) of a patient placed in an examination volume of a MR device (1). For the purpose of enabling improved interventional MR imaging with motion compensation, the invention proposes that the method comprises the steps of: a) collecting tracking data from an interventional instrument (19) introduced into the portion (22) of the body (10), b) subjecting the portion (22) of the body (10) to an imaging sequence for acquiring one or more MR signals therefrom, wherein parameters of the imaging sequence are adjusted on the basis of the tracking data, c) acquiring a MR signal data set by repeating steps a) and b) several times, d) reconstructing one or more MR images from the MR signal data set.

    摘要翻译： 本发明涉及放置在MR装置（1）的检查体积中的患者的身体（10）的运动部分（22）的MR成像方法。 为了能够改进具有运动补偿的介入MR成像，本发明提出该方法包括以下步骤：a）收集从引入到身体（10）的部分（22）中的介入仪器（19）的跟踪数据， b）使身体（10）的部分（22）经受成像序列以从其中获取一个或多个MR信号，其中基于跟踪数据调整成像序列的参数，c）获取MR信号数据 通过重复步骤a）和b）多次设置，d）从MR信号数据集重建一个或多个MR图像。

    CATHETER INTERFACING
    7.
    发明申请
    CATHETER INTERFACING 审中-公开
    导管接口

    公开(公告)号：US20110227694A1

    公开(公告)日：2011-09-22

    申请号：US13130369

    申请日：2009-11-18

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

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

    IPC分类号： G05B23/02

    CPC分类号： G01R33/285 ,  A61B5/0422 ,  A61B5/04288 ,  A61N1/086 ,  A61N1/3718 ,  A61N2001/083 ,  G01R33/287 ,  G01R33/36

    摘要： The present invention relates to a device (100) and method for interfacing a signal transmission/reception device (200) and a catheter (300). A signal transmitted by the signal transmission/reception device (200) and supplied to the device (100) via a first interface (102, 104, 106, 108) can be sensed by a first sensor (114). The sensed signal may be adjusted by an adjustment unit (116). The adjusted signal can be output via a second interface (110, 112) and supplied to the catheter (300). In this way, a resistance loss caused by a conductor (302, 304) of the catheter (300) may be compensated for.

    摘要翻译： 本发明涉及一种用于连接信号发送/接收装置（200）和导管（300）的装置（100）和方法。 信号发送/接收设备（200）发送并通过第一接口（102,104,106,108）提供给设备（100）的信号可由第一传感器（114）感测。 可以通过调节单元（116）来调节感测到的信号。 经调节的信号可经由第二接口（110,112）输出并提供给导管（300）。 以这种方式，可以补偿由导管（300）的导体（302,304）引起的电阻损耗。

    WIRELESS INTERVENTIONAL DEVICE AND A SYSTEM FOR WIRELESS ENERGY TRANSMISSION
    8.
    发明申请
    WIRELESS INTERVENTIONAL DEVICE AND A SYSTEM FOR WIRELESS ENERGY TRANSMISSION 失效
    无线传统设备和无线传输系统

    公开(公告)号：US20100037902A1

    公开(公告)日：2010-02-18

    申请号：US12519785

    申请日：2007-12-17

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

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

    IPC分类号： A61B19/00 ,  A61B5/07

    CPC分类号： A61B5/07 ,  A61B5/055 ,  A61B2017/00221 ,  A61B2560/0219 ,  A61N1/3787 ,  G01R33/287

    摘要： The invention relate to an interventional device (I2) conceived to be positioned in a body and comprising an electrically operable unit (E1, E2) conceived to carry out an interaction with the body upon a receipt of electric power, wherein the device further comprises a sensor (2) arranged for wirelessly receiving electromagnetic energy from a remote source, the said sensor being arranged as a resonant circuit (2a, 2b) and being conceived to convert the received electromagnetic energy into the said electric power. The electrically operable device may comprise a diagnostic and/or therapeutic module.

    摘要翻译： 本发明涉及一种被设想定位在体内并包括电气操作单元（E1，E2）的介入装置（I2），其被设计用于在接收到电力时与身体相互作用，其中该装置还包括一个 传感器（2），被布置成从远程源无线地接收电磁能，所述传感器被布置为谐振电路（2a，2b），并被设想为将接收到的电磁能转换成所述电力。 电可操作装置可以包括诊断和/或治疗模块。

    Electrophysiology catheter
    9.
    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
    10.
    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。