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公开(公告)号：US10310035B2
公开(公告)日：2019-06-04
申请号：US15337045
申请日：2016-10-28
发明人： Wen Ming Li , Tong Tong , Markus Vester , JianMin Wang
摘要： A body coil for an MRI system has a conductor management and a tuning/detuning circuit. The tuning/detuning circuit is connected to the conductor management, and used to subject the conductor management to tuning/detuning control by a control signal. The tuning/detuning circuit has a control signal interface, a switch diode unit and an AC/DC conversion circuit. The control signal interface receives the control signal. There is at least one switch diode unit, respectively series-connected on at least one antenna rod and/or at least one end ring of the body coil conductor management. The AC/DC conversion circuit has a rectifying circuit, for converting the power of an input RF emission signal in the MRI system to a DC current, the DC current being used to provide a DC current for the switch diode unit to be turned on. The body coil reduces the cost of a DC power supply, and this reduces heat generated by the diodes.
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2.发明申请公开(公告)号：US20180067180A1
公开(公告)日：2018-03-08
申请号：US15696382
申请日：2017-09-06
发明人： Tong Tong , JianMin Wang , Zhi Bin Li
IPC分类号： G01R33/36
CPC分类号： G01R33/3642 , G01R33/3415 , G01R33/3614 , G01R33/3621 , G01R33/3664
摘要： A magnetic resonance (MR) signal receiving apparatus has multiple local coils, capable of separately receiving MR signals generated by a body in an MR examination, each of the local coils having multiple antenna units and a time division multiplexing module. The time division multiplexing module enables MR signals received by the antenna units separately to be provided as an output by just one output line. The apparatus also has a reception coil channel selector having multiple input interfaces connected to the respective output lines of the multiple local coils, and a combiner in the reception coil channel selector that combines in time or power, all or a portion of the MR signals of the local coils, to form one or more MR composite signals.
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公开(公告)号：US20240004006A1
公开(公告)日：2024-01-04
申请号：US18216018
申请日：2023-06-29
发明人： Tong Tong , Bing Wu Zhang , Zheng He He
CPC分类号： G01R33/34084 , G01R33/3628 , G01R33/34007
摘要： An RF coil assembly for an MRI system may include a coil support and an RF coil. The coil support may include a base, a first adjusting arm and a second adjusting arm. The first adjusting arm is rotatably connected to the base and rotatable about a first axis relative to the base. The second adjusting arm is rotatably connected to the first adjusting arm and rotatable about a second axis relative to the first adjusting arm, the second axis being parallel to the first axis. The RF coil is rotatably connected to the second adjusting arm and rotatable about a third axis relative to the second adjusting arm, the third axis being parallel to the first axis. The position and angle of the RF coil can be flexibly adjusted so that the RF coil fits the examination subject more closely, thus helping to increase imaging quality.
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公开(公告)号：US20230349990A1
公开(公告)日：2023-11-02
申请号：US18308047
申请日：2023-04-27
发明人： Tong Tong , Qiu Yi Zhang , Jan Bollenbeck
CPC分类号： G01R33/36 , G01R33/34084 , A61B5/055
摘要： A coil interface apparatus may include: a plug, for connection to a coil apparatus for receiving a magnetic resonance signal via a test subject in the MRI device. The plug may include a first power coupler and at least one first signal coupler. The apparatus may include a socket, for connection to a main body of the MRI device. The socket may include a second power coupler and at least one second signal coupler. The at least one first signal coupler may send a magnetic resonance signal received from the coil apparatus to the at least one second signal coupler by induction. The at least one second signal coupler may receive the sent magnetic resonance signal by induction. The second power coupler may send a power signal to the first power coupler by induction, and the first power coupler may receive the sent power signal.
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公开(公告)号：US20180067178A1
公开(公告)日：2018-03-08
申请号：US15696500
申请日：2017-09-06
发明人： Hong Cheng , Wen Ming Li , Zhi Bin Li , Tong Tong , JianMin Wang , Ying Lun Wang
IPC分类号： G01R33/341 , G01R33/36
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/3621 , G01R33/3664
摘要： A magnetic resonance signal receiving apparatus has a local coil, and an RF receiver connected thereto the local coil via a plug. The local coil has multiple antenna units, each separately receiving magnetic resonance signals generated by a subject in a magnetic resonance examination. The local coil also has a respective bandpass filter for each antenna unit. The local coil also has a time division multiplexer having multiple input ports respectively connected to the bandpass filters. Bandpass-filtered magnetic resonance signals that have passed through the bandpass filters are thus emitted as an output by just one output line according to multiplexing timeslot. The RF receiver has one or more RF receiving channels for receiving and processing the magnetic resonance signal from the output line of the local coil. The RF receiver is disposed close to the plug.
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公开(公告)号：US20170123024A1
公开(公告)日：2017-05-04
申请号：US15337045
申请日：2016-10-28
发明人： Wen Ming Li , Tong Tong , Markus Vester , JianMin Wang
CPC分类号： G01R33/3628 , G01R33/34046 , G01R33/34076 , G01R33/3657
摘要： A body coil for an MRI system has a conductor management and a tuning/detuning circuit. The tuning/detuning circuit is connected to the conductor management, and used to subject the conductor management to tuning/detuning control by a control signal. The tuning/detuning circuit has a control signal interface, a switch diode unit and an AC/DC conversion circuit. The control signal interface receives the control signal. There is at least one switch diode unit, respectively series-connected on at least one antenna rod and/or at least one end ring of the body coil conductor management. The AC/DC conversion circuit has a rectifying circuit, for converting the power of an input RF emission signal in the MRI system to a DC current, the DC current being used to provide a DC current for the switch diode unit to be turned on. The body coil reduces the cost of a DC power supply, and this reduces heat generated by the diodes.
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