公开(公告)号：US20100312091A1

公开(公告)日：2010-12-09

申请号：US12808404

申请日：2008-12-22

申请人： Sascha Krueger ,  Daniel Wirtz ,  Steffen Weiss

发明人： Sascha Krueger ,  Daniel Wirtz ,  Steffen Weiss

IPC分类号： A61B5/055 ,  G08B23/00

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。

公开(公告)号：US20100181109A1

公开(公告)日：2010-07-22

申请号：US12665947

申请日：2008-06-27

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

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

IPC分类号： H01B7/00

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

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.

摘要翻译： 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，同时保持其最佳电气传输特性 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：US20100041977A1

公开(公告)日：2010-02-18

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： A61N1/375 ,  A61B5/0408 ,  A61B5/055

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1kΩ和OHgr的高电阻，特别是至少5kΩ。 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。

公开(公告)号：US20100013484A1

公开(公告)日：2010-01-21

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： G01R33/44

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。

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。

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。

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。

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。

公开(公告)号：US09952296B2

公开(公告)日：2018-04-24

申请号：US12808404

申请日：2008-12-22

申请人： Sascha Krueger ,  Daniel Wirtz ,  Steffen Weiss

发明人： Sascha Krueger ,  Daniel Wirtz ,  Steffen Weiss

IPC分类号： A61B5/055 ,  G08B23/00 ,  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.

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。