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11.发明授权Switched diverter circuits for minimizing heating of an implanted lead in a high power electromagnetic field environment 有权用于在高功率电磁场环境中最小化植入引线的加热的开关转向器电路公开(公告)号：US07966075B2
公开(公告)日：2011-06-21
申请号：US12938926
申请日：2010-11-03
申请人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo
发明人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo
CPC分类号： G01R33/285 , A61B5/042 , A61B5/055 , A61B5/7203 , A61B18/02 , A61B18/1492 , A61B2018/00839 , A61B2018/1293 , A61B2018/147 , A61B2090/374 , A61N1/086 , A61N1/3718 , G01R33/286
摘要： An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The switch may comprise a single or multi-pole double or single throw switch. The diversion circuit may be either a high pass filter or a low pass filter.
摘要翻译： 促进在植入引线或引线上感应的高频能量的传递的能量管理系统包括与注入的引线或引线相关联的能量消散表面，与能量消散表面相关联的转向或转向电路，以及至少一个 用于通过分流电路将植入的引线或引线中的能量转移到能量消散表面。 在替代配置中，开关可以设置在注入的引线或引线和引导电路之间，或者设置成当将能量通过引导电路转移到能量消散表面时，其电开放注入的引线或引线。 开关可以包括单极或多极双掷或单掷开关。 分流电路可以是高通滤波器或低通滤波器。
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12.发明申请TUNED ENERGY BALANCED SYSTEM FOR MINIMIZING HEATING AND/OR TO PROVIDE EMI PROTECTION OF IMPLANTED LEADS IN A HIGH POWER ELECTROMAGNETIC FIELD ENVIRONMENT 有权用于最小化加热和/或提供高功率电磁场环境中的引入线的EMI保护的调谐能量平衡系统公开(公告)号：US20100160997A1
公开(公告)日：2010-06-24
申请号：US12686137
申请日：2010-01-12
申请人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo
发明人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo
CPC分类号： G01R33/285 , A61B5/042 , A61B5/055 , A61B5/7203 , A61B2018/00839 , A61B2090/374 , A61N1/05 , A61N1/086 , A61N1/3718 , B82Y30/00
摘要： An energy management system facilitates the transfer of high frequency energy coupled into an implanted lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted lead to the energy dissipating surface through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted lead's impedance characteristics.
摘要翻译： 能量管理系统有助于以选定的RF频率或频带将耦合到植入引线中的高频能量传输到能量消散表面。 这是通过将植入的导线导电地耦合到能量消散表面来实现的，该能量分流电路包括一个或多个无源电子网络部件，其阻抗特性至少部分地被调整到植入引线的阻抗特性。
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公开(公告)号：US07853309B2
公开(公告)日：2010-12-14
申请号：US11075667
申请日：2005-03-10
IPC分类号： A61B5/05
摘要： An X-ray CT apparatus comprises a blood-flow information acquisition unit, a correction value calculating unit and a blood-flow image generating unit. The blood-flow information acquisition unit obtains information of a relative blood flow rate in the myocardium of the subject based on the CT image. The correction value calculating unit obtains a correction value based on the CT image in a concentration transition period defined to be a period from immediately after start of a continuous injection of a contrast medium into the subject until the contrast medium reaching the myocardium increases and is be in a state where it can be considered that the contrast medium is saturated at a constant value. The blood-flow image generating unit generates a blood flow value image in the myocardium by correcting the information of the relative blood flow rate with the correction value.
摘要翻译： X射线CT装置包括血流信息获取单元，校正值计算单元和血流图像生成单元。 血流信息获取单元基于CT图像获取被检体的心肌的相对血流量的信息。 校正值计算单元获得校正值，该校正值基于浓缩过渡时段中的CT图像，所述浓度过渡期定义为从造影剂连续注射到对象之后的开始之后的周期，直到达到心肌的造影剂增加，并且为 在可以认为造影剂以恒定值饱和的状态下。 血流图像生成单元通过利用校正值校正相对血流量的信息来生成心肌中的血流值图像。
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14.发明申请SWITCHED DIVERTER CIRCUITS FOR MINIMIZING HEATING OF AN IMPLANTED LEAD AND/OR PROVIDING EMI PROTECTION IN A HIGH POWER ELECTROMAGNETIC FIELD ENVIRONMENT 有权用于最小化加热引线和/或在高功率电磁场环境中提供EMI保护的切换式分流电路公开(公告)号：US20100191236A1
公开(公告)日：2010-07-29
申请号：US12707568
申请日：2010-02-17
申请人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo , Scott W. Kelley
发明人： Robert Shawn Johnson , Warren S. Dabney , Robert A. Stevenson , Christopher Michael Williams , Holly Noelle Moschiano , Scott Brainard , Daniel Robert Kaiser , Henry R. Halperin , Albert C. Lardo , Scott W. Kelley
CPC分类号： A61N1/08 , A61B5/04 , A61B5/042 , A61B5/055 , A61B5/7203 , A61B2018/00452 , A61B2018/00839 , A61B2090/374 , A61N1/05 , A61N1/086 , A61N1/3718 , G01R33/286 , G01R33/288 , H03H7/0107 , H03H7/1758 , H03H7/1766
摘要： An energy management system that facilitates the transfer of high frequency energy induced on an implanted lead or a leadwire includes an energy dissipating surface associated with the implanted lead or the leadwire, a diversion or diverter circuit associated with the energy dissipating surface, and at least one non-linear circuit element switch for diverting energy in the implanted lead or the leadwire through the diversion circuit to the energy dissipating surface. In alternate configurations, the switch may be disposed between the implanted lead or the leadwire and the diversion circuit, or disposed so that it electrically opens the implanted lead or the leadwire when diverting energy through the diversion circuit to the energy dissipating surface. The non-linear circuit element switch is typically a PIN diode. The diversion circuit may be either a high pass filter or a low pass filter.
摘要翻译： 促进在植入引线或引线上感应的高频能量的传递的能量管理系统包括与注入的引线或引线相关联的能量消散表面，与能量消散表面相关联的转向或转向电路，以及至少一个 非线性电路元件开关，用于通过分流电路将注入的引线或引线中的能量转移到能量消散表面。 在替代配置中，开关可以设置在注入的引线或引线和引导电路之间，或者设置成当将能量通过引导电路转移到能量消散表面时，其电开放注入的引线或引线。 非线性电路元件开关通常是PIN二极管。 分流电路可以是高通滤波器或低通滤波器。
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15.发明授权Frequency selective passive component networks for implantable leads of active implantable medical devices utilizing an energy dissipating surface 有权用于使用能量消散表面的有源可植入医疗装置的可植入引线的频率选择性无源组件网络公开(公告)号：US07751903B2
公开(公告)日：2010-07-06
申请号：US12489921
申请日：2009-06-23
申请人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
发明人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
IPC分类号： A61N1/08
CPC分类号： A61N1/05 , A61B5/042 , A61B5/055 , A61B18/02 , A61B18/1492 , A61B2018/00839 , A61B2018/1293 , A61B2018/147 , A61B2090/374 , A61N1/086 , A61N1/3718 , G01R33/286 , G01R33/288 , G01R33/36 , H03H1/0007 , H03H7/1758 , H03H7/1766
摘要： Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from a leadwire electrode to a point or an area spaced from the electrode, for dissipation of high-frequency energy.
摘要翻译： 提供去耦电路，其将从MRI脉冲RF场感应的能量传递到能量消散表面。 这是通过宽带滤波或谐振滤波实现的。 在有源可植入医疗装置的可植入引线的无源部件网络中，提供频率选择性能量转向电路，用于将高频能量从引线电极转移到与电极间隔开的点或区域，以消散高 频率能量
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公开(公告)号：US07689288B2
公开(公告)日：2010-03-30
申请号：US12574147
申请日：2009-10-06
申请人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
发明人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
IPC分类号： A61N1/08
CPC分类号： A61N1/08 , A61B18/1492 , A61B2018/00839 , A61B2090/374 , A61N1/086 , G01R33/287
摘要： Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from a leadwire electrode to a point or an area spaced from the electrode, for dissipation of high-frequency energy.
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17.发明申请FREQUENCY SELECTIVE PASSIVE COMPONENT NETWORKS FOR IMPLANTABLE LEADS OF ACTIVE IMPLANTABLE MEDICAL DEVICES UTILIZING AN ENERGY DISSIPATING SURFACE 有权频率选择性被动组件网络，用于使用能量消耗表面的活动可植入医疗设备的可植入引线公开(公告)号：US20100016936A1
公开(公告)日：2010-01-21
申请号：US12574147
申请日：2009-10-06
申请人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
发明人： Robert A. Stevenson , Warren S. Dabney , Christine A. Frysz , Buehl E. Truex , Henry R. Halperin , Albert C. Lardo
IPC分类号： A61N1/05
CPC分类号： A61N1/08 , A61B18/1492 , A61B2018/00839 , A61B2090/374 , A61N1/086 , G01R33/287
摘要： Decoupling circuits are provided which transfer energy induced from an MRI pulsed RF field to an energy dissipating surface. This is accomplished through broadband filtering or by resonant filtering. In a passive component network for an implantable leadwire of an active implantable medical device, a frequency selective energy diversion circuit is provided for diverting high-frequency energy away from a leadwire electrode to a point or an area spaced from the electrode, for dissipation of high-frequency energy.
摘要翻译： 提供去耦电路，其将从MRI脉冲RF场感应的能量传递到能量消散表面。 这是通过宽带滤波或谐振滤波实现的。 在有源可植入医疗装置的可植入引线的无源部件网络中，提供频率选择性能量转向电路，用于将高频能量从引线电极转移到与电极间隔开的点或区域，以消散高 频率能量
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公开(公告)号：US07551953B2
公开(公告)日：2009-06-23
申请号：US10640406
申请日：2003-08-12
IPC分类号： A61B5/055
CPC分类号： G01R33/34084 , G01R33/285 , G01R33/287 , G01R33/34053 , H01Q1/36 , H01Q1/362 , H01Q1/40 , H01Q1/44 , H01Q11/08
摘要： The invention describes a system, method, and means for an MRI transseptal needle that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter to generate high-resolution images and can enable real-time active needle tracking during MRI guided transseptal puncture procedures.
摘要翻译： 本发明描述了可以在MRI上可见的用于MRI透视针的系统，方法和装置，可用作天线并从周围主题接收MRI信号以产生高分辨率图像，并且可以实现实时有源针 MRI引导下经皮穿刺手术中的跟踪。
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19.发明授权Methodology and apparatus to terminate abandoned active implantable medical device leads 有权终止废弃的有源植入式医疗器械引线的方法和设备公开(公告)号：US08200342B2
公开(公告)日：2012-06-12
申请号：US12850870
申请日：2010-08-05
申请人： Robert A. Stevenson , Buehl E. Truex , Barry C. Muffoletto , Warren S. Dabney , Christine A. Frysz , Christopher Michael Williams , Holly Noelle Moschiano , Jeff Fleigle , Kishore Kumar Kondabatni , Richard L. Brendel , Robert Shawn Johnson , Scott Brainard , Henry R. Halperin , Albert C. Lardo
发明人： Robert A. Stevenson , Buehl E. Truex , Barry C. Muffoletto , Warren S. Dabney , Christine A. Frysz , Christopher Michael Williams , Holly Noelle Moschiano , Jeff Fleigle , Kishore Kumar Kondabatni , Richard L. Brendel , Robert Shawn Johnson , Scott Brainard , Henry R. Halperin , Albert C. Lardo
IPC分类号： A61N1/08
CPC分类号： A61N1/05 , A61B5/042 , A61B5/055 , A61B90/98 , A61B2018/00839 , A61B2090/374 , A61N1/086 , A61N1/3718 , B82Y30/00 , G01R33/285
摘要： An energy management system facilitates the transfer of high frequency energy coupled into an implanted abandoned lead at a selected RF frequency or frequency band, to an energy dissipating surface. This is accomplished by conductively coupling the implanted abandoned lead to the energy dissipating surface of an abandoned lead cap through an energy diversion circuit including one or more passive electronic network components whose impedance characteristics are at least partially tuned to the implanted abandoned lead's impedance characteristics.
摘要翻译： 能量管理系统有助于将以选定的RF频率或频带耦合到植入的废弃引线中的高频能量传送到能量消散表面。 这是通过将植入的废弃导线导电地耦合到废弃的引线帽的能量消散表面，通过包括一个或多个无源电子网络部件的能量转向电路实现的，该无源电子网络部件的阻抗特性至少部分地被调整到被植入的废弃引线的阻抗特性。
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20.发明授权Implantable lead bandstop filter employing an inductive coil with parasitic capacitance to enhance MRI compatibility of active medical devices 有权采用具有寄生电容的感应线圈的可植入引线带阻滤波器来增强主动医疗器械的MRI兼容性公开(公告)号：US08145324B1
公开(公告)日：2012-03-27
申请号：US13276195
申请日：2011-10-18
申请人： Robert A. Stevenson , Henry R. Halperin , Albert C. Lardo , Warren S. Dabney , Kishore Kumar Kondabatni , Christine A. Frysz , Robert Shawn Johnson , Holly Noelle Moschiano
发明人： Robert A. Stevenson , Henry R. Halperin , Albert C. Lardo , Warren S. Dabney , Kishore Kumar Kondabatni , Christine A. Frysz , Robert Shawn Johnson , Holly Noelle Moschiano
IPC分类号： A61N1/00
CPC分类号： A61N1/05 , A61N1/0529 , A61N1/0556 , A61N1/086 , H03H1/0007 , H03H7/0115 , H03H2001/0085 , H03H2007/013
摘要： A medical lead system includes at least one bandstop filter for attenuating current flow through the lead across a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency or range of frequencies. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.
摘要翻译： 医疗引线系统包括至少一个带阻滤波器，用于在一定频率范围内衰减通过引线的电流。 带阻滤波器具有总电路Q，其中所得的3dB带宽至少为10kHz。 选择带阻滤波器的电容和电感值，使得带阻滤波器在选定的中心频率或频率范围内谐振。 优选地，带阻滤波器具有总电路Q，其中所得的10dB带宽至少为10kHz。 这种带阻滤波器与已知的可植入部署系统和提取系统向后兼容。
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