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1. 发明授权

US10571536B2 Split magnetic resonance imaging system 有权
公开(公告)号：US10571536B2
公开(公告)日：2020-02-25
申请号：US15242452
申请日：2016-08-19
申请人： ViewRay Technologies, Inc.
发明人： James F. Dempsey , John L. Patrick , Shmaryu M. Shvartsman , Gordon D. Demeester
IPC分类号： G01R33/38 , G01R33/48 , A61B5/055 , G01R33/385 , A61N5/10
摘要： A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.

2. 发明授权

US10823794B2 Self-shielded split gradient coil 有权
公开(公告)号：US10823794B2
公开(公告)日：2020-11-03
申请号：US16195673
申请日：2018-11-19
申请人： ViewRay Technologies, Inc.
发明人： Shmaryu M. Shvartsman , Gordon D. Demeester , John L. Patrick , James F. Dempsey
IPC分类号： G01R33/38 , G01R33/385 , G01R33/48 , G01R33/421 , A61N5/10
摘要： Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.

3. 发明申请

US20160356869A1 SPLIT MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
标题翻译：分立磁共振成像系统
公开(公告)号：US20160356869A1
公开(公告)日：2016-12-08
申请号：US15242452
申请日：2016-08-19
申请人： ViewRay Technologies, Inc.
发明人： James F. Dempsey , John L. Patrick , Shmaryu M. Shvartsman , Gordon D. Demeester
IPC分类号： G01R33/38 , G01R33/48 , A61B5/055 , G01R33/385
摘要： A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.
摘要翻译：磁共振成像（MRI）系统包括具有由间隙隔开的一对MRI磁体壳体的分裂磁体系统。一对主磁共振磁铁磁铁设置在相应的磁共振磁体外壳内。多个支撑组件附接到MRI磁体壳体。部分或全部支撑组件设置有与磁共振磁体外壳的可拆卸连接。这允许MRI系统的部分拆卸以改善用于重新定位MRI系统的运输和机动性。 MRI系统可以包括用于支撑放射治疗系统的间隙中的台架。此外，可移除的支撑组件可以用于在一对MRI磁体壳体之间的壳体导管，例如电气和流体导管。

4. 发明授权

US10132888B2 Self-shielded split gradient coil 有权
公开(公告)号：US10132888B2
公开(公告)日：2018-11-20
申请号：US14550464
申请日：2014-11-21
申请人： VIEWRAY TECHNOLOGIES, INC.
发明人： Shmaryu M. Shvartsman , Gordon D. Demeester , John L. Patrick , James F. Dempsey
IPC分类号： G01R33/38 , G01R33/385 , G01R33/421 , G01R33/48 , A61N5/10
摘要： Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.

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