公开(公告)号：DE112010000844T5

公开(公告)日：2012-11-29

申请号：DE112010000844

申请日：2010-01-20

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： WEISS STEFFEN

IPC: G01R33/28

Abstract: Die vorliegende Erfindung bezieht sich auf eine elektrisch leitende Übertragungsleitung (100), die zur Verwendung in einem Magnettunnel eines Magnetresonanzsystems vorgesehen ist, wobei die Leitung mindestens ein induktives Kopplungselement (106) zum Koppeln von mindestens zwei Adersegmenten (104) der Leitung umfasst, wobei das Kopplungselement (106) weiterhin ein paramagnetisches und/oder ferromagnetisches Material umfasst.

公开(公告)号：DE60132004D1

公开(公告)日：2008-01-31

申请号：DE60132004

申请日：2001-10-17

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： RASCHE VOLKER ,  WEISS STEFFEN ,  OP DE BEEK JOHANNES C

IPC: A61B6/00

公开(公告)号：WO2011051872A2

公开(公告)日：2011-05-05

申请号：PCT/IB2010054816

申请日：2010-10-25

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  WEISS STEFFEN ,  KRUEGER SASCHA

Inventor： WEISS STEFFEN ,  KRUEGER SASCHA

IPC: A61B18/14 ,  A61B5/042 ,  A61B18/00 ,  A61N1/06 ,  A61N1/08 ,  G01R33/28

CPC classification number: A61N1/06 ,  A61B5/0422 ,  A61B18/1492 ,  A61B2017/00084 ,  A61B2018/00023 ,  A61B2018/00029 ,  A61B2018/00791 ,  A61B2090/374 ,  A61N1/086 ,  G01R33/285 ,  G01R33/288

Abstract: 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.

Abstract translation: 1。一种导管，包括： - 传输线（104,106,924,1202,1302,1902），其中所述传输线包括多个射频陷波器（118,318,418,518,618,718,818,918 ，1018,1202,1404，）; 和 - 用流体冷却多个射频陷阱的冷却管线（104,304,1200,1900）。

公开(公告)号：WO2010082145A3

公开(公告)日：2010-09-30

申请号：PCT/IB2010050052

申请日：2010-01-07

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  LIPS OLIVER ,  DAVID BERND ,  KRUEGER SASCHA ,  WEISS STEFFEN

Inventor： LIPS OLIVER ,  DAVID BERND ,  KRUEGER SASCHA ,  WEISS STEFFEN

IPC: A61B5/042

CPC classification number: A61B5/0422

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2007015190A3

公开(公告)日：2007-08-30

申请号：PCT/IB2006052543

申请日：2006-07-25

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  NIELSEN TIM ,  VAN STEVENDAAL UDO ,  GLEICH BERNHARD ,  SCHAEFFTER TOBIAS ,  HAAKER PAUL ,  MAZURKEWITZ PETER ,  WEISS STEFFEN

Inventor： NIELSEN TIM ,  VAN STEVENDAAL UDO ,  GLEICH BERNHARD ,  SCHAEFFTER TOBIAS ,  HAAKER PAUL ,  MAZURKEWITZ PETER ,  WEISS STEFFEN

IPC: A61B5/00 ,  A61B5/05

CPC classification number: A61B5/0059 ,  A61B5/05

Abstract: 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.

Abstract translation: 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）包括适于将主要光学辐射束发射到感兴趣对象（101）上的光学辐射源（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 。

公开(公告)号：WO2009044361A3

公开(公告)日：2009-07-09

申请号：PCT/IB2008054030

申请日：2008-10-02

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  WEISS STEFFEN

Inventor： WEISS STEFFEN

IPC: G01R33/28

CPC classification number: G01R33/287 ,  G01R33/3678 ,  G01R33/3692

Abstract: The invention relates to a system (1) for MR imaging of a body (14) placed in an examination volume (7). The system (1) comprises transmission means for radiating RF signals towards the body (14), control means (20) for controlling the generation of the magnetic field gradients and the RF signals, means (17) for receiving and sampling MR signals, reconstruction means (21) for forming MR images from the signal samples, and auxiliary means (23) such as a catheter to be localised having an RF antenna (24)' for receiving RF signals generated by the transmission means. In order to provide an MR system that enables a safe, reliable and non-interfering transmission of signals and/or power to the auxiliary means (23) located within the examination volume (7), the invention proposes that the system (1) is arranged to generate circularly polarised RF signals via the transmission means, which RF signals have a selectable sense of rotation, i.e. forward polarisation or reverse polarisation.

Abstract translation: 本发明涉及一种用于放置在检查体积（7）中的身体（14）的MR成像的系统（1）。 系统（1）包括用于向身体（14）辐射RF信号的发送装置，用于控制磁场梯度和RF信号的产生的控制装置（20），用于接收和采样MR信号的装置（17），重建 用于从信号样本形成MR图像的装置（21）和用于接收由发射装置产生的RF信号的用于定位的辅助装置（23）如具有RF天线（24）的导管。 为了提供能够对位于检查体积（7）内的辅助装置（23）进行信号和/或功率的安全，可靠和不干扰的MR系统，本发明提出系统（1）是 被布置成经由传输装置产生圆偏振RF信号，该RF信号具有可选择的旋转感，即正向偏振或反向偏振。

公开(公告)号：WO2009004548A2

公开(公告)日：2009-01-08

申请号：PCT/IB2008052589

申请日：2008-06-27

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  KRUEGER SASCHA ,  DAVID BERND ,  LIPS OLIVER ,  WEISS STEFFEN ,  WIRTZ DANIEL

Inventor： KRUEGER SASCHA ,  DAVID BERND ,  LIPS OLIVER ,  WEISS STEFFEN ,  WIRTZ DANIEL

IPC: A61M25/09

CPC classification number: G01R33/36 ,  A61B18/14 ,  A61B2018/00178 ,  A61B2090/374 ,  A61N1/086 ,  G01R33/287 ,  G01R33/288 ,  G01R33/3664

Abstract: 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.

Abstract translation: 一种用于诸如导管，导丝等细长医疗设备（420）的传输电缆，其中传输电缆仅在必要时能够切换到MR安全模式，同时保持其最佳的电传输特性 否则，在此公开。 传输电缆包括传输线，传输线包括由非导电间隙（106a）隔开的至少两个导电线段（104a，104b）;桥接单元，包括至少一个导电桥段（108a） 以及开关单元（112），其布置成使桥接单元和/或传输线移动以通过使用桥接段闭合非导电间隙来电连接两个线段，或者通过 打开非导电间隙。

公开(公告)号：WO2008023321A3

公开(公告)日：2008-06-05

申请号：PCT/IB2007053311

申请日：2007-08-20

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  WEISS STEFFEN ,  GLEICH BERNHARD

Inventor： WEISS STEFFEN ,  GLEICH BERNHARD

IPC: A61B18/14 ,  A61B5/042 ,  A61B5/055 ,  A61B5/06 ,  A61B19/00 ,  G01R33/28

CPC classification number: G01R33/34084 ,  A61B5/042 ,  A61B5/06 ,  A61B18/1492 ,  A61B2034/2051 ,  A61B2090/374 ,  A61B2562/222 ,  G01R33/287 ,  G01R33/288 ,  G01R33/34053 ,  G01R33/3628

Abstract: 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.

Abstract translation: 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）连接，以及 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。

公开(公告)号：WO2007122553A2

公开(公告)日：2007-11-01

申请号：PCT/IB2007051376

申请日：2007-04-17

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  KRUEGER SASCHA ,  WEISS STEFFEN ,  DAHNKE HANNES ,  SCHAEFFTER TOBIAS R

Inventor： KRUEGER SASCHA ,  WEISS STEFFEN ,  DAHNKE HANNES ,  SCHAEFFTER TOBIAS R

IPC: G01R33/28

CPC classification number: G01R33/286

Abstract: The invention relates to a device for magnetic resonance imaging of a body (7), wherein the device (1) is arranged to a) generate a series of MR echo signals (20) by subjecting at least a portion of the body (7) to an MR imaging sequence comprising RF pulses and switched magnetic field gradients, b) acquire the MR echo signals for reconstructing an MR image (21) therefrom, c) calculate a susceptibility gradient map (22) from the MR echo signals or from the MR image (21), the susceptibility gradient map (22) indicating local susceptibility induced magnetic field gradients, d) determine the position of an interventional instrument (16) having paramagnetic or ferromagnetic properties from the susceptibility gradient map (22).

Abstract translation: 本发明涉及一种用于身体（7）的磁共振成像的装置，其中所述装置（1）被布置成：a）通过对所述主体（7）的至少一部分进行承受来产生一系列MR回波信号（20） 涉及包括RF脉冲和切换磁场梯度的MR成像序列，b）获取用于重构MR图像（21）的MR回波信号，c）从MR回波信号或从MR回波信号计算磁敏度梯度图（22） 图像（21），表示局部敏感性感应磁场梯度的磁敏度梯度图（22），d）从磁敏度梯度图（22）确定具有顺磁性或铁磁性质的介入仪器（16）的位置。

公开(公告)号：WO2006067703A3

公开(公告)日：2006-09-21

申请号：PCT/IB2005054267

申请日：2005-12-15

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  GLEICH BERNHARD ,  VERNICKEL PETER ,  WEISS STEFFEN ,  LUEDEKE KAI-MICHAEL

Inventor： GLEICH BERNHARD ,  VERNICKEL PETER ,  WEISS STEFFEN ,  LUEDEKE KAI-MICHAEL

IPC: G01R33/36

CPC classification number: G01R33/287 ,  G01R33/3642 ,  G01R33/3685

Abstract: 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 ? i /4, wherein ? i 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.

Abstract translation: 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）并且每一个具有大约π/Λ4的有效长度，其中Δλ是差模信号的波长 通过路径（13）传送。 通过将这些元件（30,31）设置成在相邻引线段（20,21; 21,22）的至少一部分上电延伸的分布元件的形式，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。