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1. 发明申请

WO2012059845A1 METHOD OF CHARACTERIZING AN RF TRANSMIT CHAIN 审中-公开
标题翻译：表征RF发射链的方法
公开(公告)号：WO2012059845A1
公开(公告)日：2012-05-10
申请号：PCT/IB2011/054771
申请日：2011-10-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VAN DEN BRINK, Johan Samuel , GRAESSLIN, Ingmar , KRUEGER, Sascha , WEISS, Steffen , VERNICKEL, Peter
发明人： VAN DEN BRINK, Johan Samuel , GRAESSLIN, Ingmar , KRUEGER, Sascha , WEISS, Steffen , VERNICKEL, Peter
IPC分类号： G01R33/44
CPC分类号： G01R33/36 , G01R33/246 , G01R33/44 , G01R33/5612 , G01R33/583
摘要： The invention relates to a method of characterizing the RF transmit chain of a magnetic resonance imaging scanner (1) using -a local transmit/receive coil system (204; 210), comprising a first local NMR probe and a first local magnetic resonance coil, the first NMR probe being spatially located in immediate neighborhood to the first coil, -a local receive coil system (206; 208), comprising a second local NMR probe and a second local magnetic resonance coil, the second NMR probe being spatially located in immediate neighborhood to the second coil, wherein the transmit chain comprises an external MR coil (9; 11; 12; 13), the method comprising: -determining with the first magnetic resonance coil, a first MR signal phase evolution of the local RF transmit field generated by MR excitation of the first probe using the first magnetic resonance coil by measuring the RF response of the first probe upon said excitation, -determining with the second magnetic resonance coil a second MR signal phase evolution of the local RF transmit field generated by MR excitation of the second probe using the external MR coil (9; 11; 12; 13) by measuring the RF response of the second probe upon said excitation, - calculating a phase offset between the first and second MR signal phase evolution.
摘要翻译：本发明涉及一种使用本地发射/接收线圈系统（204; 210）来表征磁共振成像扫描仪（1）的RF发射链的方法，该系统包括第一局部NMR探针和第一局部磁共振线圈，空间上位于第一线圈附近的第一NMR探针 - 局部接收线圈系统（206; 208），包括第二局部NMR探针和第二局部磁共振线圈，所述第二NMR探针在空间上位于立即邻近于所述第二线圈，其中所述发射链包括外部MR线圈（9; 11; 12; 13），所述方法包括： - 利用所述第一磁共振线圈确定所述本地RF发射场的第一MR信号相位演变通过在所述激发时测量第一探针的RF响应，使用第一磁共振线圈通过MR激发而产生的第一探针， - 用第二磁共振线圈确定第二MR信号phas 使用外部MR线圈（9; 9）的第二探针的MR激发产生的局部RF发射场的演变。 11; 12; 13）通过在所述激励时测量第二探针的RF响应， - 计算第一和第二MR信号相位演化之间的相位偏移。

2. 发明申请

WO2010082150A1 CATHETER BEING USABLE IN A MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
标题翻译：导管可用于磁共振成像系统
公开(公告)号：WO2010082150A1
公开(公告)日：2010-07-22
申请号：PCT/IB2010/050082
申请日：2010-01-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WEISS, Steffen , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd
发明人： WEISS, Steffen , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd
IPC分类号： A61M25/00 , G01R33/28
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 toa 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 energyapplication 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) arereceivable, wherein the cavity is adapted for providing a cooling fluid as the magnetic resonance fluidfor cooling the energy application element. The catheter (2) comprises further a tracking coil (15) for tracking the catheter (2), wherein the trackingcoil (15) is adapted to receive the magnetic resonance signals from the magnetic resonance fluid. Thus, the magnetic resonance fluid fulfils at least twofunctions, providing magnetic resonance signals for tracking the catheter (2) and cooling the energy application element.
摘要翻译：本发明涉及用于对物体（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，由磁共振成像系统（1）产生的磁共振信号可从该磁共振流体中获得，其中腔适配用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）适于从磁共振流体接收磁共振信号。因此，磁共振流体实现至少两个功能，提供用于跟踪导管（2）并且冷却能量施加元件的磁共振信号。

3. 发明申请

WO2009004548A3 TRANSMISSION CABLE FOR USE IN RADIO-FREQUENCY MAGNETIC OR ELECTRICAL FIELDS 审中-公开
公开(公告)号：WO2009004548A3
公开(公告)日：2009-01-08
申请号：PCT/IB2008/052589
申请日：2008-06-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KRUEGER, Sascha , DAVID, Bernd , LIPS, Oliver , WEISS, Steffen , WIRTZ, Daniel
发明人： KRUEGER, Sascha , DAVID, Bernd , LIPS, Oliver , WEISS, Steffen , WIRTZ, Daniel
IPC分类号： G01R33/28
摘要： A transmission cable for use in an elongate medical device (420) such as a catheter, guide wire, etc., wherein the transmission cable is capable of being switched to an MR-safe mode only when necessary, while retaining its optimal electrical transmission properties otherwise, is disclosed herein. The transmission cable comprises a transmission line including at least two electrically conductive line segments (104a, 104b) separated by a non-conductive gap (106a), a bridging unit comprising at least one electrically conductive bridge segment (108a) capable of bridging the non-conductive gap, and a switching unit (112) arranged to move the bridging unit and/or the transmission line to electrically connect the two line segments by closing the non-conductive gap using the bridge segment or to electrically disconnect the two line segments by opening the non-conductive gap.

4. 发明申请

WO2011051872A3 RADIO FREQUENCY ABLATION CATHETER AND MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
公开(公告)号：WO2011051872A3
公开(公告)日：2011-05-05
申请号：PCT/IB2010/054816
申请日：2010-10-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WEISS, Steffen , KRUEGER, Sascha
发明人： WEISS, Steffen , KRUEGER, Sascha
IPC分类号： A61B18/14 , A61N1/06 , G01R33/28 , A61B5/042 , A61B18/00 , A61N1/08
摘要： A catheter comprising: -a transmission line (104, 106, 924, 1202, 1302, 1902,), wherein the transmission line comprises a plurality of radio frequency traps (118, 318, 418, 518, 618, 718, 818, 918, 1018, 1202, 1404,); and -a cooling line (104, 304, 1200, 1900) for cooling the plurality of radio frequency traps with a fluid.

5. 发明申请

WO2011033456A1 MRI SYSTEM WITH CARDIAC COIL HAVING OPENING FOR DEFIBRILLATOR ELECTRODES OR CONNECTOR FOR DEFIBRILLATOR CABLE 审中-公开
标题翻译：具有闭路电磁线圈的断路器电缆或连接器的磁芯系统
公开(公告)号：WO2011033456A1
公开(公告)日：2011-03-24
申请号：PCT/IB2010/054155
申请日：2010-09-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WEISS, Steffen , DAVID, Bernd , LIPS, Oliver , KRUEGER, Sascha
发明人： WEISS, Steffen , DAVID, Bernd , LIPS, Oliver , KRUEGER, Sascha
IPC分类号： G01R33/28 , G01R33/3415
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），用于从定位在检查体积中的患者的身体（10）的胸部区域发射RF脉冲和/或接收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）可经由至少一个去纤颤器（26）连接到至少一个除颤器电极焊盘（26）电缆（30）。

6. 发明申请

WO2010058350A1 CATHETER INTERFACING 审中-公开
标题翻译：导管接口
公开(公告)号：WO2010058350A1
公开(公告)日：2010-05-27
申请号：PCT/IB2009/055141
申请日：2009-11-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , LIPS, Oliver , DAVID, Bernd , HAAKER, Paul , KRUEGER, Sascha, S. , WEISS, Steffen , WIRTZ, Daniel
发明人： LIPS, Oliver , DAVID, Bernd , HAAKER, Paul , KRUEGER, Sascha, S. , WEISS, Steffen , WIRTZ, Daniel
IPC分类号： A61B5/042 , A61B5/0428 , A61N1/05 , A61N1/16 , G01R33/28 , A61N1/36
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。

7. 发明申请

WO2009081379A2 MAGNETIC RESONANCE SAFETY MONITORING SYSTEMS AND METHODS 审中-公开
标题翻译：磁共振安全监测系统及方法
公开(公告)号：WO2009081379A2
公开(公告)日：2009-07-02
申请号：PCT/IB2008/055482
申请日：2008-12-22
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , KRUEGER, Sascha , WIRTZ, Daniel , WEISS, Steffen
发明人： KRUEGER, Sascha , WIRTZ, Daniel , WEISS, Steffen
IPC分类号： G01R33/28
CPC分类号： G01R33/285 , G01R33/288
摘要： A magnetic resonance method comprises applying a radio frequency excitation in an examination region (14), measuring a magnetic resonance signal generated by the applied radio frequency excitation in a subject (16) in the examination region, monitoring a radio frequency parameter during the applying, and evaluating subject safety based on the monitoring. A magnetic resonance safety monitor (40) comprises an analyzer (42, 44, 46, 50) configured to (i) receive a radio frequency signal during magnetic resonance excitation, (ii) extract a radio frequency parameter from the received radio frequency signal, and (iii) evaluate subject safety based on the extracted radio frequency parameter, and a remediation module (54) configured to perform a remediation of the magnetic resonance excitation responsive to the evaluation (iii) indicating a potentially unsafe condition.
摘要翻译：磁共振方法包括在检查区域（14）中施加射频激励，测量由所述检查区域中的被检体（16）施加的射频激励产生的磁共振信号，在施加期间监视射频参数，并根据监测评估受试者的安全性。磁共振安全监视器（40）包括分析器（42,44,46,50），其被配置为（i）在磁共振激励期间接收射频信号，（ii）从所接收的射频信号中提取射频参数，以及（iii）基于提取的射频参数来评估对象安全性;以及修复模块（54），其被配置为响应于指示潜在不安全状况的评估（iii）来执行磁共振激励的修复。

8. 发明申请

WO2008093262A1 TRANSMISSION LINE FOR RF SIGNALS WITHOUT MATCHING NETWORKS 审中-公开
标题翻译：无匹配网络的射频信号传输线
公开(公告)号：WO2008093262A1
公开(公告)日：2008-08-07
申请号：PCT/IB2008/050252
申请日：2008-01-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WIRTZ, Daniel , LIPS, Oliver , DAVID, Bernd , KRUEGER, Sascha , WEISS, Steffen
发明人： LIPS, Oliver , DAVID, Bernd , KRUEGER, Sascha , WEISS, Steffen
IPC分类号： G01R33/28 , G01R33/36
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。

9. 发明申请

WO2008078251A1 WIRELESS INTERVENTIONAL DEVICE AND A SYSTEM FOR WIRELESS ENERGY TRANSMISSION 审中-公开
标题翻译：无线传统设备和无线传输系统
公开(公告)号：WO2008078251A1
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055143
申请日：2007-12-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , WIRTZ, Daniel , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd , WEISS, Steffen
发明人： WIRTZ, Daniel , LIPS, Oliver , KRUEGER, Sascha , DAVID, Bernd , WEISS, Steffen
IPC分类号： 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可操作单元（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。

10. 发明申请

WO2008032249A2 CATHETER AND MEDICAL ASSEMBLY 审中-公开
标题翻译：导管和医疗装置
公开(公告)号：WO2008032249A2
公开(公告)日：2008-03-20
申请号：PCT/IB2007/053611
申请日：2007-09-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , LIPS, Oliver , DAVID, Bernd , GLEICH, Bernhard , KRUEGER, Sascha , WEISS, Steffen , WIRTZ, Daniel
发明人： LIPS, Oliver , DAVID, Bernd , GLEICH, Bernhard , KRUEGER, Sascha , WEISS, Steffen , WIRTZ, Daniel
IPC分类号： A61B5/055 , A61B5/042 , A61B5/0428
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 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1kO，特别是至少5kO的高电阻。因此，本发明提供了一种用于在MR引导下的EP干预期间通过使用高电阻丝和/或集中电阻器作为导管内的连接使用来防止过度加热的解决方案。

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