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1. 发明授权

US4656424A Apparatus and methods for selective excitation 失效
标题翻译：用于选择性激发的装置和方法
公开(公告)号：US4656424A
公开(公告)日：1987-04-07
申请号：US668945
申请日：1984-11-07
申请人： Yuval Tsur , Tomas Duby , Saul Stokar
发明人： Yuval Tsur , Tomas Duby , Saul Stokar
IPC分类号： G01R33/48 , G01R33/20
CPC分类号： G01R33/446
摘要： Arrangements for selectively exciting sections of bodies being imaged in NMR systems wherein the rotating magnetic fields are shaped with envelopes defined by the sum of a sinc function and a cosine function.
摘要翻译：用于选择性地激励在NMR系统中成像的身体部分的布置，其中旋转磁场用由正弦函数和余弦函数的和定义的包络来形成。

2. 发明授权

US07962019B2 System, method and apparatus for controlling drift of a main magnetic field in an MRI system 有权
标题翻译：用于控制MRI系统中主磁场漂移的系统，方法和装置
公开(公告)号：US07962019B2
公开(公告)日：2011-06-14
申请号：US11937839
申请日：2007-11-09
申请人： Derek A. Seeber , Tomas Duby
发明人： Derek A. Seeber , Tomas Duby
IPC分类号： A21B2/00 , F24C7/00
CPC分类号： G01R33/389 , G01R33/3804
摘要： An apparatus for controlling the temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) includes a plurality of warm bore thermal sensors positioned on a surface of the warm bore and a plurality of heater elements positioned on the surface of the warm bore. A heater element thermal sensor is coupled to each of the plurality of heater elements and configured to monitor the temperature of the corresponding heater element. A controller is coupled to the plurality of warm bore thermal sensors and the plurality of heater element thermal sensors. The controller is configured to control each of the plurality of heater elements to maintain a predetermined temperature of the warm bore.
摘要翻译：一种用于在磁共振成像（MRI）中控制超导磁体的暖孔的温度的装置包括位于暖孔表面上的多个暖孔热传感器，以及位于温暖的孔。加热器元件热传感器耦合到多个加热器元件中的每一个并且被配置为监测对应的加热器元件的温度。控制器耦合到多个暖孔热传感器和多个加热器元件热传感器。控制器被配置为控制多个加热器元件中的每一个以保持暖孔的预定温度。

3. 发明授权

US07570141B2 Method of designing a shim coil to reduce field settling time 有权
标题翻译：设计垫片线圈以减少场稳定时间的方法
公开(公告)号：US07570141B2
公开(公告)日：2009-08-04
申请号：US11275037
申请日：2005-12-05
申请人： Timothy J. Hollis , Timothy J. Havens , Tomas Duby
发明人： Timothy J. Hollis , Timothy J. Havens , Tomas Duby
IPC分类号： H01F7/00 , H01F1/00 , H01F6/00
CPC分类号： G01R33/3875
摘要： A shim coil design technique determines a position and a geometry of a room temperature (RT) shim coil to provide both a desired field homogeneity and a desired B0 field setting time. The simultaneous satisfaction of both field homogeneity and field settling time is achieved without a reduction of flux leakage from the shim coil, modification of main magnet protection circuitry, and without necessarily decoupling of the shim coil from the overall main magnet.
摘要翻译：垫片线圈设计技术确定室温（RT）垫片线圈的位置和几何形状，以提供期望的场均匀性和期望的B0场设定时间。实现了场均匀性和场稳定时间的同时满足，而不会减少来自垫片线圈的磁通泄漏，主磁体保护电路的修改，并且不必使垫片线圈与整个主磁体分离。

4. 发明授权

US5519372A Magnets providing patient accessibility 失效
标题翻译：提供病人无障碍的磁铁
公开(公告)号：US5519372A
公开(公告)日：1996-05-21
申请号：US243836
申请日：1994-05-17
申请人： Alex Palkovich , John Bird , Tomas Duby , John Simkin
发明人： Alex Palkovich , John Bird , Tomas Duby , John Simkin
IPC分类号： G01R33/38 , G01R33/3815 , G01R33/383
CPC分类号： G01R33/3806 , G01R33/3815 , G01R33/383
摘要： A magnet for MRI systems having a first pair of spaced apart oppositely disposed walls with a first pole piece extending from one wall of said first pair of walls towards a second pole piece extending from the other wall of the pair of walls with an air gap between the first and the second pole pieces. A superconducting coil mounted on at least one of the first and the second pole pieces to generate a magnetic field between the pole pieces with the air gap between the pole pieces large enough for receiving a patient therein fop magnetic resonance imaging purposes; and a second pair of oppositely disposed walls closing said magnetic circuit; there being sufficient room between the walls to enable medical personnel to be between the walls of the second pair of walls and the pole pieces providing substantially complete access to the patient in the air gap.
摘要翻译：一种用于MRI系统的磁体，具有第一对间隔开的相对设置的壁，第一极片从所述第一对壁的一个壁延伸到从所述一对壁的另一壁延伸的第二极靴，第一和第二极片。一种超导线圈，其安装在所述第一和第二极靴中的至少一个上，以在所述极靴之间产生磁场，并且所述极片之间的空气间隙足够大以便在其中接收患者的fop磁共振成像目的; 以及关闭所述磁路的第二对相对设置的壁; 在墙壁之间有足够的空间，使得医务人员能够位于第二对墙壁和极片之间，从而在气隙中基本上完全进入病人。

5. 发明申请

US20090128269A1 COOLING SYSTEM AND APPARATUS FOR CONTROLLING DRIFT OF A MAIN MAGNETIC FIELD IN AN MRI SYSTEM 有权
标题翻译：用于控制MRI系统中主磁场的转移的冷却系统和装置
公开(公告)号：US20090128269A1
公开(公告)日：2009-05-21
申请号：US11940819
申请日：2007-11-15
申请人： Derek A. Seeber , Tomas Duby
发明人： Derek A. Seeber , Tomas Duby
IPC分类号： H01F6/04 , F28D15/00 , G01V3/00
CPC分类号： G01R33/3815 , G01R33/3804 , G01R33/389 , H01F6/04
摘要： An apparatus for controlling a temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) system includes a cooling tube that is mounted on a surface of the warm bore and is configured to transport a coolant. A chiller is coupled to the cooling tube and is configured to provide the coolant to the cooling tube. A controller is coupled to the chiller and is configured to provide a control signal to the chiller to control a temperature of the coolant.
摘要翻译：用于控制磁共振成像（MRI）系统中的超导磁体的暖孔温度的装置包括安装在暖孔的表面上并构造成输送冷却剂的冷却管。冷却器联接到冷却管并且构造成将冷却剂提供给冷却管。控制器耦合到冷却器并且被配置为向冷却器提供控制信号以控制冷却剂的温度。

6. 发明授权

US07068033B2 Acoustically damped gradient coil 失效
标题翻译：声阻尼梯度线圈
公开(公告)号：US07068033B2
公开(公告)日：2006-06-27
申请号：US10642846
申请日：2003-08-18
申请人： Michael Ben Sellers , Tomas Duby , Neil Clarke , Anthony Mantone
发明人： Michael Ben Sellers , Tomas Duby , Neil Clarke , Anthony Mantone
IPC分类号： G01V3/00
CPC分类号： G01R33/3854
摘要： A magnetic resonance imaging (MRI) device includes an inner gradient coil assembly proximate a patient positioning area, an outer gradient coil assembly proximate a magnet assembly, and a damping layer sandwiched between the inner and outer gradient coil assemblies.
摘要翻译：磁共振成像（MRI）装置包括靠近患者定位区域的内部梯度线圈组件，靠近磁体组件的外部梯度线圈组件和夹在内部和外部梯度线圈组件之间的阻尼层。

7. 发明授权

US07868617B2 Cooling system and apparatus for controlling drift of a main magnetic field in an MRI system 有权
标题翻译：用于控制MRI系统中的主磁场的漂移的冷却系统和装置
公开(公告)号：US07868617B2
公开(公告)日：2011-01-11
申请号：US11940819
申请日：2007-11-15
申请人： Derek A. Seeber , Tomas Duby
发明人： Derek A. Seeber , Tomas Duby
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/3804 , G01R33/389 , H01F6/04
摘要： An apparatus for controlling a temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) system includes a cooling tube that is mounted on a surface of the warm bore and is configured to transport a coolant. A chiller is coupled to the cooling tube and is configured to provide the coolant to the cooling tube. A controller is coupled to the chiller and is configured to provide a control signal to the chiller to control a temperature of the coolant.
摘要翻译：用于控制磁共振成像（MRI）系统中的超导磁体的暖孔温度的装置包括安装在暖孔的表面上并构造成输送冷却剂的冷却管。冷却器联接到冷却管并且构造成将冷却剂提供给冷却管。控制器耦合到冷却器并且被配置为向冷却器提供控制信号以控制冷却剂的温度。

8. 发明申请

US20070126541A1 METHOD OF DESIGNING A SHIM COIL TO REDUCE FIELD SETTLING TIME 有权
标题翻译：设计线圈的方法可减少现场安装时间
公开(公告)号：US20070126541A1
公开(公告)日：2007-06-07
申请号：US11275037
申请日：2005-12-05
申请人： Timothy Hollis , Timothy Havens , Tomas Duby
发明人： Timothy Hollis , Timothy Havens , Tomas Duby
IPC分类号： H01F5/00
CPC分类号： G01R33/3875
摘要： A shim coil design technique determines a position and a geometry of a room temperature (RT) shim coil to provide both a desired field homogeneity and a desired B0 field setting time. The simultaneous satisfaction of both field homogeneity and field settling time is achieved without a reduction of flux leakage from the shim coil, modification of main magnet protection circuitry, and without necessarily decoupling of the shim coil from the overall main magnet.
摘要翻译：垫片线圈设计技术确定室温（RT）垫片线圈的位置和几何形状，以提供期望的场均匀性和期望的场分析场设定时间。实现了场均匀性和场稳定时间的同时满足，而不会减少来自垫片线圈的磁通泄漏，主磁体保护电路的修改，并且不必使垫片线圈与整个主磁体分离。

9. 发明申请

US20050040825A1 Acoustically damped gradient coil 失效
标题翻译：声阻尼梯度线圈
公开(公告)号：US20050040825A1
公开(公告)日：2005-02-24
申请号：US10642846
申请日：2003-08-18
申请人： Michael Sellers , Tomas Duby , Neil Clarke , Anthony Mantone
发明人： Michael Sellers , Tomas Duby , Neil Clarke , Anthony Mantone
IPC分类号： A61B5/055 , G01R33/385 , G01V3/00
CPC分类号： G01R33/3854
摘要： A magnetic resonance imaging (MRI) device includes an inner gradient coil assembly proximate a patient positioning area, an outer gradient coil assembly proximate a magnet assembly, and a damping layer sandwiched between the inner and outer gradient coil assemblies.
摘要翻译：磁共振成像（MRI）装置包括靠近患者定位区域的内部梯度线圈组件，靠近磁体组件的外部梯度线圈组件和夹在内部和外部梯度线圈组件之间的阻尼层。

10. 发明申请

US20090123139A1 SYSTEM, METHOD AND APPARATUS FOR CONTROLLING DRIFT OF A MAIN MAGNETIC FIELD IN AN MRI SYSTEM 有权
标题翻译：用于控制MRI系统中主磁场的移动的系统，方法和装置
公开(公告)号：US20090123139A1
公开(公告)日：2009-05-14
申请号：US11937839
申请日：2007-11-09
申请人： Derek A. Seeber , Tomas Duby
发明人： Derek A. Seeber , Tomas Duby
IPC分类号： H05B3/02
CPC分类号： G01R33/389 , G01R33/3804
摘要： An apparatus for controlling the temperature of a warm bore of a superconducting magnet in a magnetic resonance imaging (MRI) includes a plurality of warm bore thermal sensors positioned on a surface of the warm bore and a plurality of heater elements positioned on the surface of the warm bore. A heater element thermal sensor is coupled to each of the plurality of heater elements and configured to monitor the temperature of the corresponding heater element. A controller is coupled to the plurality of warm bore thermal sensors and the plurality of heater element thermal sensors. The controller is configured to control each of the plurality of heater elements to maintain a predetermined temperature of the warm bore.
摘要翻译：一种用于在磁共振成像（MRI）中控制超导磁体的暖孔的温度的装置包括位于暖孔表面上的多个暖孔热传感器，以及位于温暖的孔。加热器元件热传感器耦合到多个加热器元件中的每一个并且被配置为监测对应的加热器元件的温度。控制器耦合到多个暖孔热传感器和多个加热器元件热传感器。控制器被配置为控制多个加热器元件中的每一个以保持暖孔的预定温度。

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