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公开(公告)号：US20230154716A1
公开(公告)日：2023-05-18
申请号：US18146438
申请日：2022-12-26
发明人： Cheng NI , Gang PAN , Zhangfan DENG , Mingyuan SONG , Zongrui SUN , Haoshan ZHU , Feichao FU , Jincheng MEI , Chengjia YUAN , Li WANG , Xiaofeng ZHANG , Jianxiong ZOU
CPC分类号： H01J1/22 , H01J35/064
摘要： The present disclosure is related to a microwave source. The microwave source may include a cathode heater and a thermionic emitter. The cathode heater may include a first component, and a second component enclosing at least a portion of the first component. The thermionic emitter may be configured to release electrons when the thermionic emitter is heated by the cathode heater. At least a portion of the second component of the cathode heater may be in contact with the thermionic emitter.
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公开(公告)号：US20240297009A1
公开(公告)日：2024-09-05
申请号：US18663015
申请日：2024-05-13
发明人： Cheng NI , Gang PAN , Zhangfan DENG , Mingyuan SONG , Zongrui SUN , Haoshan ZHU , Feichao FU , Jincheng MEI , Chengjia YUAN , Li WANG , Xiaofeng ZHANG , Jianxiong ZOU
CPC分类号： H01J1/22 , H01J35/064
摘要： The present disclosure is related to a microwave source. The microwave source may include a cathode heater and a thermionic emitter. The cathode heater may include a first component, and a second component enclosing at least a portion of the first component. The thermionic emitter may be configured to release electrons when the thermionic emitter is heated by the cathode heater. At least a portion of the second component of the cathode heater may be in contact with the thermionic emitter.
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3.发明公开公开(公告)号：US20230310894A1
公开(公告)日：2023-10-05
申请号：US18194608
申请日：2023-03-31
发明人： Peng WANG , Cheng NI , Shoubo HE , Feichao FU , Yanfang LIU , Wei HAN , Li WANG
CPC分类号： A61N5/1043 , A61N5/1045 , A61N5/1084 , G21K1/093 , A61N2005/1089
摘要： The embodiments of the present disclosure provide a radiation therapy device. The radiation therapy device may comprise a beam generating device, a scanning magnet, and one or more focusing magnets. The beam generating device may be configured to generate a charged particle beam. The scanning magnet may be configured to diverge the charged particle beam. The one or more focusing magnets may be configured to deflect the charged particle beam diverged by the scanning magnet.
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公开(公告)号：US20210339051A1
公开(公告)日：2021-11-04
申请号：US17305516
申请日：2021-07-09
发明人： Feichao FU , Xing XU , Zhou XUE , Johannes STAHL
IPC分类号： A61N5/10
摘要： A method may include identifying a time window of a procedure. The method may also include obtaining operational information of the time window. The operational information may include a limit of pulse repetition frequency (PRF) acceleration and a plurality of preliminary radio frequency (RF) PRFs. The method may also include determining a plurality of updated RF PRFs by updating the plurality of preliminary RF PRFs. A rate of variation between any two adjacent updated RF PRFs may be less than or equal to the limit of PRF acceleration. The method may also include causing an RF source to generate electromagnetic waves at the plurality of updated RF PRFs in the time window.
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公开(公告)号：US20240299774A1
公开(公告)日：2024-09-12
申请号：US18665637
申请日：2024-05-16
发明人： Feichao FU , Cheng NI , Jun BAO , Qiang ZHANG , Chao WANG , Wei ZHANG , Shitao LIU , Li WANG , Tuoyu CAO , Can LIAO , Tuota XING , Wei QI
IPC分类号： A61N5/10
CPC分类号： A61N5/1049 , A61N5/1081 , A61N2005/1052 , A61N2005/1055
摘要： Embodiments of the present disclosure provide a radiotherapy system, comprising a first imaging component, a second imaging component, and a treatment component. The first imaging component and second imaging component may be used to determine a target region of an object and/or to guide an emission of treatment rays. The treatment component may be used to emit the treatment rays toward the target region. An isocenter of the treatment component may coincide with an isocenter of the second imaging component.
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公开(公告)号：US20240139549A1
公开(公告)日：2024-05-02
申请号：US18407321
申请日：2024-01-08
发明人： Feichao FU , Xing XU , Zhou XUE , Johannes STAHL
IPC分类号： A61N5/10
CPC分类号： A61N5/1077 , A61N5/1044 , A61N5/1071 , A61N2005/1074 , A61N2005/1089
摘要： A method may include identifying a time window of a procedure. The method may also include obtaining operational information of the time window. The operational information may include a limit of pulse repetition frequency (PRF) acceleration and a plurality of preliminary radio frequency (RF) PRFs. The method may also include determining a plurality of updated RF PRFs by updating the plurality of preliminary RF PRFs. A rate of variation between any two adjacent updated RF PRFs may be less than or equal to the limit of PRF acceleration. The method may also include causing an RF source to generate electromagnetic waves at the plurality of updated RF PRFs in the time window.
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7.发明公开公开(公告)号：US20240004003A1
公开(公告)日：2024-01-04
申请号：US18338311
申请日：2023-06-20
发明人： Shoubo HE , Cheng NI , Feichao FU , Peng WANG , Zongtai XIE
CPC分类号： G01R33/34046 , A61N5/1049 , A61N5/1077 , G01R33/4808 , G01R33/34023 , A61N2005/1055
摘要： The present disclosure provides a magnetic resonance imaging (MRI) device. The MRI device may include a main magnet configured to generate a main magnetic field. The main magnet may form an accommodation space configured to accommodate a target object. The main magnet may include at least one group of main field coils. A direction of the main magnetic field generated by the at least one group of main field coils may form a preset angle with an axial direction of the accommodation space. The at least one group of main field coils may include a first group of main field coils and a second group of main field coils that are arranged oppositely along a radial direction of the accommodation space. Each of the first group of main field coils and the second group of main field coils may bend towards each other.
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公开(公告)号：US20240272259A1
公开(公告)日：2024-08-15
申请号：US18434786
申请日：2024-02-06
发明人： Xiangbin FANG , Can LIAO , Tuota XING , Feichao FU
IPC分类号： G01R33/58 , A61B5/055 , G01R33/565
CPC分类号： G01R33/583 , A61B5/055 , G01R33/56518 , A61B2560/0223
摘要： A method for calibrating a medical device is provided. The medical device may include a magnetic resonance (MR) device. The method may include switching a gradient field in at least one gradient direction of the MR device; obtaining a magnetic flux variation in the at least one gradient direction in at least one portion of a spatial region within a gradient field domain of the MR device using a magnetic flux measurement component; determining a center of the gradient field domain of the MR device based on the magnetic flux variation; and performing a mechanical adjustment on the MR device to locate the center of the gradient field domain at a target position based on the center of the gradient field domain, or adjusting an image reconstruction process to correct or eliminate an impact of inaccuracy of the center of the gradient field domain on a reconstructed image.
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公开(公告)号：US20240264252A1
公开(公告)日：2024-08-08
申请号：US18434778
申请日：2024-02-06
发明人： Tuota XING , Feichao FU , Haoshan ZHU , Kangkang SHA
CPC分类号： G01R33/288 , G01R33/0047 , G01R33/0076
摘要： Embodiments of the present disclosure disclose an examination room shield, comprising: a peripherally closed shield side wall, and a sub-shield assembly disposed in an inner space enclosed by the shield side wall, the sub-shield assembly including a peripherally closed sub-shield side wall.
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公开(公告)号：US20230381542A1
公开(公告)日：2023-11-30
申请号：US18327050
申请日：2023-05-31
发明人： Cheng NI , Yanfang LIU , Wei ZHANG , Li WANG , Yifeng WANG , Jingjie ZHOU , Fei GONG , Fei ZHAO , Shaoqiang YE , Binghuan LI , Jiaqi FU , Can LIAO , Feichao FU
CPC分类号： A61N5/1075 , A61N5/1071 , G16H40/40
摘要： A method for quality assurance may include obtaining a state of a medical device. The method may also include obtaining a target plan of a target subject. The method may also include determining a prediction result based on the state of the medical device and the target plan of the target subject. The method may also include determining whether a quality assurance test passes based on the prediction result.
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