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1. 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。

2. 发明授权

US06900637B1 Phased array coil with center shifted sensitivity 失效
标题翻译：具有中心偏移灵敏度的相控阵线圈
公开(公告)号：US06900637B1
公开(公告)日：2005-05-31
申请号：US10804869
申请日：2004-03-19
申请人： Derek A. Seeber
发明人： Derek A. Seeber
IPC分类号： G01R33/3415 , G01V3/00
CPC分类号： G01R33/3415
摘要： A phase array coil uses asymmetric loops and selective overlapping to provide a more uniform field sensitivity to magnetic flux passing through the surface defined by multiple such phased array loops.
摘要翻译：相位阵列线圈使用不对称环路和选择性重叠以对通过由多个这种相控阵列环路限定的表面的磁通量提供更均匀的场灵敏度。

3. 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。

4. 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。

5. 发明申请

US20090206839A1 SYSTEM, METHOD AND APPARATUS FOR COMPENSATING FOR DRIFT IN A MAIN MAGNETIC FIELD IN AN MRI SYSTEM 审中-公开
标题翻译：用于补偿MRI系统中主磁场中DRIFT的系统，方法和装置
公开(公告)号：US20090206839A1
公开(公告)日：2009-08-20
申请号：US12034244
申请日：2008-02-20
申请人： Derek A. Seeber , Anton M. Linz
发明人： Derek A. Seeber , Anton M. Linz
IPC分类号： G01V3/00 , H01F6/00
CPC分类号： G01R33/3815 , G01R33/3875 , G01R33/389
摘要： A method for compensating for drift in a main magnetic field of a superconducting magnet in a magnetic resonance imaging (MRI) system includes measuring a pressure in a cryostat of the superconducting magnet. Based on the pressure, a parameter of an element of the MRI system is adjusted to correct or compensate for a change in the main magnetic field.
摘要翻译：用于补偿磁共振成像（MRI）系统中的超导磁体的主磁场中的漂移的方法包括测量超导磁体的低温恒温器中的压力。基于压力，调整MRI系统的元件的参数以校正或补偿主磁场的变化。

6. 发明申请

US20080084209A1 GRADIENT COIL APPARATUS AND METHOD OF FABRICATING A GRADIENT COIL TO REDUCE ARTIFACTS IN MRI IMAGES 有权
标题翻译：梯度线圈设备和制造骨架线圈以减少MRI图像中的人造物的方法
公开(公告)号：US20080084209A1
公开(公告)日：2008-04-10
申请号：US11538662
申请日：2006-10-04
申请人： Derek A. Seeber , Weijun Yin
发明人： Derek A. Seeber , Weijun Yin
IPC分类号： G01V3/00
CPC分类号： G01R33/385 , G01R33/3858
摘要： A gradient coil or other element of a magnetic resonance imaging system includes at least one layer comprised of copper having a first surface and a second surface. A first semiconductor layer is applied to the first surface of the copper and an insulation layer applied to the first semiconductor layer. In one embodiment, a second semiconductor layer is applied to the second surface of the copper. The first and second semiconductor layers encapsulate any voids formed between the copper and the semiconductor layers, equalize the potential around the voids and prevent partial discharge formation.
摘要翻译：磁共振成像系统的梯度线圈或其它元件包括由具有第一表面和第二表面的铜组成的至少一层。将第一半导体层施加到铜的第一表面和施加到第一半导体层的绝缘层。在一个实施例中，第二半导体层被施加到铜的第二表面。第一和第二半导体层封装形成在铜和半导体层之间的任何空隙，使空隙附近的电位相等并防止局部放电形成。

7. 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。

8. 发明授权

US07436180B2 Gradient coil apparatus and method of fabricating a gradient coil to reduce artifacts in MRI images 有权
标题翻译：梯度线圈装置和制造梯度线圈以减少MRI图像中的伪影的方法
公开(公告)号：US07436180B2
公开(公告)日：2008-10-14
申请号：US11538662
申请日：2006-10-04
申请人： Derek A. Seeber , Weijun Yin
发明人： Derek A. Seeber , Weijun Yin
IPC分类号： G01V3/00
CPC分类号： G01R33/385 , G01R33/3858
摘要： A gradient coil or other element of a magnetic resonance imaging system includes at least one layer comprised of copper having a first surface and a second surface. A first semiconductor layer is applied to the first surface of the copper and an insulation layer applied to the first semiconductor layer. In one embodiment, a second semiconductor layer is applied to the second surface of the copper. The first and second semiconductor layers encapsulate any voids formed between the copper and the semiconductor layers, equalize the potential around the voids and prevent partial discharge formation.
摘要翻译：磁共振成像系统的梯度线圈或其它元件包括由具有第一表面和第二表面的铜组成的至少一层。将第一半导体层施加到铜的第一表面和施加到第一半导体层的绝缘层。在一个实施例中，第二半导体层被施加到铜的第二表面。第一和第二半导体层封装形成在铜和半导体层之间的任何空隙，使空隙附近的电位相等并防止局部放电形成。

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