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1. 发明授权

US07091721B2 Phased array local coil for MRI imaging having non-overlapping regions of sensitivity 有权
公开(公告)号：US07091721B2
公开(公告)日：2006-08-15
申请号：US10122476
申请日：2002-04-12
申请人： Jovan Jevtic
发明人： Jovan Jevtic
IPC分类号： G01V3/00
CPC分类号： G01R33/365 , G01R33/3415
摘要： A capacitor decoupling network allows the production of a multi-loop local coil for magnetic resonance imaging without overlap of the loops and/or with decoupling between both adjacent and non-adjacent coils. The former design may find application for new MRI techniques such as SMASH and SENSE.

2. 发明授权

US06781379B2 Cable routing and potential equalizing ring for magnetic resonance imaging coils 有权
标题翻译：用于磁共振成像线圈的电缆布线和电位均衡环
公开(公告)号：US06781379B2
公开(公告)日：2004-08-24
申请号：US10227072
申请日：2002-08-22
申请人： Velibor Pikelja , Derek Seeber , Jovan Jevtic , Ashok Menon , William T. Johnson, Jr.
发明人： Velibor Pikelja , Derek Seeber , Jovan Jevtic , Ashok Menon , William T. Johnson, Jr.
IPC分类号： G01V300
CPC分类号： G01R33/3415 , G01R33/34007 , G01R33/36 , G01R33/3642 , G01R33/422
摘要： A cable routing system for an MRI coil having multiple loops and multiple signal cables provides a non-resonant conductive ring surrounding the loops and grounded to define a low electrical field region along which the signal cables may be routed for reduced interference.
摘要翻译：用于具有多个环路和多个信号电缆的MRI线圈的电缆布线系统提供围绕环路的非谐振导电环并且被接地以限定低电场区域，沿着该低电场区域可以路由信号电缆以减少干扰。

3. 发明授权

US07227360B2 Phased array MRI coil with controllable coupled ring resonator 失效
标题翻译：具有可控耦合环谐振器的相控阵MRI线圈
公开(公告)号：US07227360B2
公开(公告)日：2007-06-05
申请号：US11036640
申请日：2005-01-14
申请人： Jovan Jevtic , Velibor Pikelja
发明人： Jovan Jevtic , Velibor Pikelja
IPC分类号： G01V3/00
CPC分类号： G01R33/3607 , G01R33/34046 , G01R33/3415
摘要： A coil for magnetic resonance imaging operates in a transmit mode with multiple loops locked together in a phase relationship like a birdcage coil to provide a uniform transmission field, but in a receive mode like a phased array coil, each coil operating independently to produce a separate signal for reception by the MRI machine. Phasing of the coil during transmit mode is provided by a ring resonator controllably coupled to the loops. Controllable coupling is provided by a series of current limiting elements interposed between the resonant ring and the loops of the coil.
摘要翻译：用于磁共振成像的线圈以发射模式操作，其中多个环路以类似鸟笼线圈的相位关系锁定在一起以提供均匀的发射场，但是在类似相控阵线圈的接收模式中，每个线圈独立地工作以产生单独的信号由MRI机接收。在发射模式期间线圈的相位由可控地耦合到环路的环形谐振器提供。可控耦合由插入在谐振环和线圈的环之间的一系列限流元件提供。

4. 发明授权

US07109788B2 Apparatus and method of improving impedance matching between an RF signal and a multi- segmented electrode 有权
标题翻译：改善RF信号与多段电极之间的阻抗匹配的装置和方法
公开(公告)号：US07109788B2
公开(公告)日：2006-09-19
申请号：US10469593
申请日：2002-02-27
申请人： Jovan Jevtic , Andrej Mitrovic
发明人： Jovan Jevtic , Andrej Mitrovic
IPC分类号： H03D3/02
CPC分类号： H01J37/32082 , H01J37/32183
摘要： An apparatus and method of improving impedance matching between a RF signal and a multi-segmented electrode in a plasma reactor powered by the RF signal. The apparatus and method phase shifts the RF signal driving one or more electrode segment of the multi-segmented electrode, amplifies the RF signal, and matches an impedance of the RF signal with an impedance of the electrode segment, where the RF signal is modulated prior to matching of the impedance of the RF signal. The apparatus and method directionally couples an output of the matching of the impedance of the RF signal and the electrode segment, and adjusts the output of the matching of the impedance of the RF signal such that a directionally coupled output signal and a reference signal representing the RF signal at the output of the master RF oscillator produces a demodulated signal of minimal amplitude.
摘要翻译：一种改善由RF信号供电的等离子体反应器中的RF信号和多段电极之间的阻抗匹配的装置和方法。该装置和方法相位移动驱动多分段电极的一个或多个电极段的RF信号，放大RF信号，并将RF信号的阻抗与电极段的阻抗匹配，其中RF信号先前被调制以匹配RF信号的阻抗。该装置和方法定向耦合RF信号和电极段的阻抗匹配的输出，并且调整RF信号的阻抗匹配的输出，使得定向耦合的输出信号和表示在主RF振荡器的输出处的RF信号产生最小振幅的解调信号。

5. 发明申请

US20060158187A1 Phased array MRI coil with controllable coupled ring resonator 失效
标题翻译：具有可控耦合环谐振器的相控阵MRI线圈
公开(公告)号：US20060158187A1
公开(公告)日：2006-07-20
申请号：US11036640
申请日：2005-01-14
申请人： Jovan Jevtic , Velibor Pikelja
发明人： Jovan Jevtic , Velibor Pikelja
IPC分类号： G01V3/00
CPC分类号： G01R33/3607 , G01R33/34046 , G01R33/3415
摘要： A coil for magnetic resonance imaging operates in a transmit mode with multiple loops locked together in a phase relationship like a birdcage coil to provide a uniform transmission field, but in a receive mode like a phased array coil, each coil operating independently to produce a separate signal for reception by the MRI machine. Phasing of the coil during transmit mode is provided by a ring resonator controllably coupled to the loops. Controllable coupling is provided by a series of current limiting elements interposed between the resonant ring and the loops of the coil.
摘要翻译：用于磁共振成像的线圈以发射模式操作，其中多个环路以类似鸟笼线圈的相位关系锁定在一起以提供均匀的发射场，但是在类似相控阵线圈的接收模式中，每个线圈独立地工作以产生单独的信号由MRI机接收。在发射模式期间线圈的相位由可控地耦合到环路的环形谐振器提供。可控耦合由插入在谐振环和线圈的环之间的一系列限流元件提供。

6. 发明授权

US06762606B2 Retracting MRI head coil 失效
标题翻译：回缩MRI头部线圈
公开(公告)号：US06762606B2
公开(公告)日：2004-07-13
申请号：US10303582
申请日：2002-11-22
申请人： Jovan Jevtic , Ashok Menon , Derek Seeber , Matthew J. Mercier , Steven M. Zwolinski , Matthias Gyori
发明人： Jovan Jevtic , Ashok Menon , Derek Seeber , Matthew J. Mercier , Steven M. Zwolinski , Matthias Gyori
IPC分类号： G01V300
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/3415
摘要： A head coil for magnetic resonance imaging may be shortened longitudinally to provide for better access by a patient. Extension of the coil may be performed after the positioning of the patient's head significantly simplifying patient positioning with respect to the coil. A portion of a conductor support sliding over the patient's head removable to allow endotracheal tubes or the like to remain undisturbed. CROSS-REFERENCE TO RELATED APPLICATIONS
摘要翻译：用于磁共振成像的头部线圈可以纵向缩短以提供患者更好的接近。线圈的延伸可以在患者头部的定位显着简化患者相对于线圈的定位之后进行。滑动在患者头部上的导体支撑件的一部分可移除以允许气管内管等保持不受干扰。

7. 发明授权

US07482757B2 Inductively coupled high-density plasma source 失效
标题翻译：电感耦合高密度等离子体源
公开(公告)号：US07482757B2
公开(公告)日：2009-01-27
申请号：US10472553
申请日：2002-03-25
申请人： Bill H. Quon , Jovan Jevtic , Sam Antley , Eric J. Strang
发明人： Bill H. Quon , Jovan Jevtic , Sam Antley , Eric J. Strang
IPC分类号： H01J7/24
CPC分类号： H01J37/321 , H01J37/32357 , H01J37/3266
摘要： A high-density plasma source (100) is disclosed. The source includes an annular insulating body (300) with an annular cavity (316) formed within. An inductor coil (340) serving as an antenna is arranged within the annular cavity and is operable to generate a first magnetic field within a plasma duct (60) interior region (72) and inductively couple to the plasma when the annular body is arranged to surround a portion of the plasma duct. A grounded conductive housing (400) surrounds the annular insulating body. An electrostatic shield (360) is arranged adjacent the inner surface of the insulating body and is grounded to the conductive housing. Upper and lower magnet rings (422 and 424) are preferably arranged adjacent the upper and lower surfaces of the annular insulating body outside of the conductive housing. A T-match network is in electrical communication with said inductor coil and is adapted to provide for efficient transfer of RF power from an RF power source to the plasma. At least one plasma source can be used to form a high-density plasma suitable for plasma processing of a workpiece residing in a plasma chamber in communication with the at least one source.
摘要翻译：公开了一种高密度等离子体源（100）。源包括环形绝缘体（300），其内部形成有环形空腔（316）。用作天线的电感线圈（340）布置在环形空腔内，并且可操作以在等离子体管道（60）内部区域（72）内产生第一磁场，并且当环形体布置成围绕等离子体管道的一部分。接地导电壳体（400）围绕环形绝缘体。静电屏蔽（360）被布置成邻近绝缘体的内表面并且被接地到导电壳体。上，下磁环（422和424）优选地布置成邻近导电外壳外的环形绝缘体的上表面和下表面。 T匹配网络与所述电感器线圈电连通，并且适于提供从RF功率源到等离子体的RF功率的有效传输。可以使用至少一个等离子体源来形成适于等离子体处理高密度等离子体处理的工件，该工件位于与至少一个源连通的等离子体室中。

8. 发明申请

US20050099133A1 Inductively coupled high-density plasma source 失效
标题翻译：电感耦合高密度等离子体源
公开(公告)号：US20050099133A1
公开(公告)日：2005-05-12
申请号：US10472553
申请日：2002-03-25
申请人： Bill Quon , Jovan Jevtic , Sam Antley , Eric Strang
发明人： Bill Quon , Jovan Jevtic , Sam Antley , Eric Strang
IPC分类号： H05H1/46 , B01D53/70 , B01J19/08 , H01J7/24 , H01J37/32
CPC分类号： H01J37/321 , H01J37/32357 , H01J37/3266
摘要： A high-density plasma source (100) is disclosed. The source includes an annular insulating body (300) with an annular cavity (316) formed within. An inductor coil (340) serving as an antenna is arranged within the annular cavity and is operable to generate a first magnetic field within a plasma duct (60) interior region (72) and inductively couple to the plasma when the annular body is arranged to surround a portion of the plasma duct. A grounded conductive housing (400) surrounds the annular insulating body. An electrostatic shield (360) is arranged adjacent the inner surface of the insulating body and is grounded to the conductive housing. Upper and lower magnet rings (422 and 424) are preferably arranged adjacent the upper and lower surfaces of the annular insulating body outside of the conductive housing. A T-match network is in electrical communication with said inductor coil and is adapted to provide for efficient transfer of RF power from an RF power source to the plasma. At least one plasma source can be used to form a high-density plasma suitable for plasma processing of a workpiece residing in a plasma chamber in communication with the at least one source.
摘要翻译：公开了一种高密度等离子体源（100）。源包括环形绝缘体（300），其内部形成有环形空腔（316）。用作天线的电感线圈（340）布置在环形空腔内，并且可操作以在等离子体管道（60）内部区域（72）内产生第一磁场，并且当环形体布置成围绕等离子体管道的一部分。接地导电壳体（400）围绕环形绝缘体。静电屏蔽（360）被布置成邻近绝缘体的内表面并且被接地到导电壳体。上，下磁环（422和424）优选地布置成邻近导电外壳外的环形绝缘体的上表面和下表面。 T匹配网络与所述电感器线圈电连通，并且适于提供从RF功率源到等离子体的RF功率的有效传输。可以使用至少一个等离子体源来形成适于等离子体处理高密度等离子体处理的工件，该工件位于与至少一个源连通的等离子体室中。

9. 发明授权

US07345485B2 Optical interface for local MRI coils 失效
标题翻译：局部MRI线圈的光学接口
公开(公告)号：US07345485B2
公开(公告)日：2008-03-18
申请号：US11334264
申请日：2006-01-18
申请人： Jovan Jevtic , Nunez Tatum
发明人： Jovan Jevtic , Nunez Tatum
IPC分类号： G01V3/00
CPC分类号： G01R33/3692
摘要： An implementation of an optical transmission path for NMR signals from local coils in magnetic resonance imaging employs a photomodulator that may be incorporated into a connecting optical cable to be shared among multiple local coils and to provide for connection and disconnection at an electrical interface eliminating the need for optical connectors.
摘要翻译：在磁共振成像中来自本地线圈的NMR信号的光传输路径的实现采用光调制器，该光调制器可并入到连接光缆中，以在多个本地线圈之间共享并且在电接口处提供连接和断开，从而消除了需要用于光连接器。

10. 发明申请

US20070164746A1 Optical interface for local MRI coils 失效
标题翻译：局部MRI线圈的光学接口
公开(公告)号：US20070164746A1
公开(公告)日：2007-07-19
申请号：US11334264
申请日：2006-01-18
申请人： Jovan Jevtic , Nunez Tatum
发明人： Jovan Jevtic , Nunez Tatum
IPC分类号： G01V3/00
CPC分类号： G01R33/3692
摘要： An implementation of an optical transmission path for NMR signals from local coils in magnetic resonance imaging employs a photomodulator that may be incorporated into a connecting optical cable to be shared among multiple local coils and to provide for connection and disconnection at an electrical interface eliminating the need for optical connectors.
摘要翻译：在磁共振成像中来自本地线圈的NMR信号的光传输路径的实现采用光调制器，该光调制器可并入到连接光缆中，以在多个本地线圈之间共享并且在电接口处提供连接和断开，从而消除了需要用于光连接器。

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