-
公开(公告)号：US20080036463A1
公开(公告)日：2008-02-14
申请号：US11504246
申请日：2006-08-14
申请人： Hank Hsieh , Gordon Danby , Raymond Damadian , John Jackson , Hugh Wahl , Cristian Balica
发明人： Hank Hsieh , Gordon Danby , Raymond Damadian , John Jackson , Hugh Wahl , Cristian Balica
IPC分类号： G01V3/00
CPC分类号： G01R33/3815 , G01R33/3806 , Y10T29/4902
摘要： A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending into recesses in the side walls. The coil units may further include elongated, low-thermal conductance supports disposed within the support extensions. The frame may include pole stems projecting inwardly from the side walls, and the coils may be disposed in close proximity to the pole stems. Cryocoolers may be mounted to the frame so that the cryocoolers are substantially mechanically isolated from the coils of the coil units, but are in thermal communication therewith. The cryocooler mountings may be arranged for convenient servicing and installation of the cryocoolers.
摘要翻译： 磁共振成像磁体包括铁磁框架。 一对通常为环形的超导线圈单元覆盖在框架中的侧壁的界面上。 每个线圈单元可以包括具有延伸到侧壁中的凹部中的中空支撑延伸部的容器。 线圈单元还可以包括设置在支撑延伸部内的细长的低热传导支撑。 框架可以包括从侧壁向内突出的杆杆，并且线圈可以设置在极杆附近。 低温冷却器可以安装到框架上，使得低温冷却器基本上与线圈单元的线圈机械隔离，但与其进行热连通。 低温冷却器安装件可以布置成方便维修和安装低温冷却器。
-
公开(公告)号：US20060197530A1
公开(公告)日：2006-09-07
申请号：US11236184
申请日：2005-09-27
申请人： Raymond Damadian , William Wahl , Hank Hsieh , Gordon Danby , John Jackson , Jevan Damadian , Luciano Bonanni , Mark Gelbien , Keith Saboe
发明人： Raymond Damadian , William Wahl , Hank Hsieh , Gordon Danby , John Jackson , Jevan Damadian , Luciano Bonanni , Mark Gelbien , Keith Saboe
IPC分类号： G01V3/00
CPC分类号： G01R33/3806 , A61B5/0555 , G01R33/3815
摘要： In one aspect, a magnet comprising a pair of pole supports spaced apart from one another and extending in a generally horizontal direction. The magnet includes a pair of flux return members extending between the pole supports so as to define a frame, each of the flux return members including a first columnar section that extends parallel to the polar axis and a second columnar section that extends perpendicular to the polar axis and projects towards the pole. In another aspect, a magnetic resonance imaging system comprises a ferromagnetic frame that is operative to support an upper pole member and a lower pole member along a vertical polar axis such that a gap is defined between the upper and lower pole members and an access floor that is isolated from the ferromagnetic frame and pole members for providing access to the gap.
-
公开(公告)号：US07248137B1
公开(公告)日：2007-07-24
申请号：US11093737
申请日：2005-03-29
IPC分类号： H01F1/00
CPC分类号： G01R33/3806 , G01R33/3802 , G01R33/383 , H01F7/0278
摘要： A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
摘要翻译： 磁体结构产生磁隙内的磁场。 至少部分地由一对固定在框架上的永磁体提供该磁场。 框架固定一个适于保持构成永磁体的磁性材料的磁体组件，使得可以调节磁性材料的量以适应特定应用。 磁性材料可以以诸如磁性“砖”的离散磁性元件的形式提供。 该框架还用作通量收集器并返回。 因此，磁体结构的一般几何形状是固定的，并且磁性材料的量以及因此的磁场强度是可调节的。
-
公开(公告)号：US07116197B1
公开(公告)日：2006-10-03
申请号：US10834771
申请日：2004-04-29
IPC分类号： H01F7/00
CPC分类号： H01F7/0284 , G01R33/383 , H01F7/021
摘要： A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
-
公开(公告)号：US06982620B1
公开(公告)日：2006-01-03
申请号：US09998907
申请日：2001-11-23
IPC分类号： H01F5/00
CPC分类号： H01F7/0284 , G01R33/383 , H01F7/021
摘要： A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
摘要翻译： 磁体结构产生磁隙内的磁场。 至少部分地由一对固定在框架上的永磁体提供该磁场。 框架固定一个适于保持构成永磁体的磁性材料的磁体组件，使得可以调节磁性材料的量以适应特定应用。 磁性材料可以以诸如磁性“砖”的离散磁性元件的形式提供。 该框架还用作通量收集器并返回。 因此，磁体结构的一般几何形状是固定的，并且磁性材料的量以及因此的磁场强度是可调节的。
-
公开(公告)号：US06970061B1
公开(公告)日：2005-11-29
申请号：US10835578
申请日：2004-04-29
IPC分类号： G01R33/383 , H01F1/00 , H01F7/02
CPC分类号： H01F7/0278 , G01R33/383
摘要： A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
摘要翻译： 磁体结构产生磁隙内的磁场。 至少部分地由一对固定在框架上的永磁体提供该磁场。 框架固定一个适于保持构成永磁体的磁性材料的磁体组件，使得可以调节磁性材料的量以适应特定应用。 磁性材料可以以诸如磁性“砖”的离散磁性元件的形式提供。 该框架还用作通量收集器并返回。 因此，磁体结构的一般几何形状是固定的，并且磁性材料的量以及因此的磁场强度是可调节的。
-
公开(公告)号：US07271689B1
公开(公告)日：2007-09-18
申请号：US11091730
申请日：2005-03-28
IPC分类号： H01F1/00
CPC分类号： H01F7/0278
摘要： A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
-
公开(公告)号：US06504371B1
公开(公告)日：2003-01-07
申请号：US10136939
申请日：2002-05-01
IPC分类号： G01V300
CPC分类号： G01R33/3806 , A61B5/055 , A61B5/0555 , A61B5/06 , A61B18/00 , A61B34/10 , A61B90/36 , A61B2017/22038 , A61B2090/374
摘要： A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations from a horizontal to a vertical position, including being lockable at any oblique angle with respect to the horizontal. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space. This elevator also may be used in combination with the patient-positioning device. Preferred embodiments facilitate MRI guided surgery and other procedures performed while the patient is being imaged.
-
公开(公告)号：US06404202B1
公开(公告)日：2002-06-11
申请号：US09761159
申请日：2001-01-16
IPC分类号： G01V300
CPC分类号： G01R33/3806 , A61B5/055 , A61B5/06 , A61B18/00 , A61B34/10 , A61B90/36 , A61B2017/22038 , A61B2090/374
摘要： A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space. This elevator also may be used in combination with the patient-positioning device.
-
公开(公告)号：US06414490B1
公开(公告)日：2002-07-02
申请号：US09789460
申请日：2001-02-21
IPC分类号： G01V300
CPC分类号： G01R33/3806 , A61B5/055 , A61B5/0555 , A61B5/06 , A61B18/00 , A61B34/10 , A61B90/36 , A61B2017/22038 , A61B2090/374
摘要： A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations from a horizontal to a vertical position, including being lockable at any oblique angle with respect to the horizontal. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space. This elevator also may be used in combination with the patient-positioning device. Preferred embodiments facilitate MRI guided surgery and other procedures performed while the patient is being imaged.
摘要翻译： 一种磁共振成像（MRI）磁体与移动患者定位装置组合，包括患者支架以及使用该磁体定位患者进行MRI扫描的方法。 患者支撑件可旋转通过从水平位置到垂直位置的一系列取向，包括可相对于水平面任意倾斜的角度锁定。 然后可以以预定方向将设置在患者定位装置上的患者水平地移入和移出MRI磁体中的患者接收空间。 优选实施例包括多个患者定位装置，其中一系列患者可以在一个患者位于患者接收空间内的状态下处于就绪状态。 作为替代实施例，患者可以通过可从患者接收空间下方的地板致动的电梯竖直地移动到用于MRI扫描的位置。 该电梯也可以与患者定位装置组合使用。 优选的实施例便于MRI引导手术和在患者被成像时执行的其他程序。
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.026 秒)
