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1. 外观设计

USD893725S1 Coil system for a medical imaging system 有权
公开(公告)号：USD893725S1
公开(公告)日：2020-08-18
申请号：US29658865
申请日：2018-08-03
申请人： Siemens Healthcare GmbH
设计人： Jun You , Zeng He He , Wen Ming Li
摘要： FIG. 1 is a front elevational view of a coil system for a medical imaging system showing our new design;
FIG. 2 is a back elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof; and
FIG. 7 is a perspective view taken generally from the front, top, and right-hand side thereof.
FIG. 8 is a perspective view taken generally from the back, top, and left-hand side thereof.
FIG. 9 is a top plan view thereof with the coil omitted for clarity of disclosure.
FIG. 10 is a perspective view thereof showing the coil positioned at a right-side position on the base.
FIG. 11 is a perspective view thereof showing the coil positioned at a left-side position on the base; and,
FIG. 12 is an exploded perspective view thereof showing the top portion of the coil being separated from the lower portion of the coil.
The broken lines shown in the drawings represent portions of the coil system for a medical imaging system that form no part of the claimed design.

2. 发明授权

US10677864B2 Tuning/detuning circuit and detuning method for an RF coil 有权
公开(公告)号：US10677864B2
公开(公告)日：2020-06-09
申请号：US15941201
申请日：2018-03-30
申请人： Siemens Healthcare GmbH
发明人： Hou Quan Lin , Ying Lun Wang , Wen Ming Li , JianMin Wang , Juergen Nistler
IPC分类号： G01V3/00 , G01R33/36 , H03H1/00 , G01R33/34
摘要： A tuning/detuning structure and a detuning method for an RF coil use an RF power source, a first impedance circuit, a first RF line, and a first port having a first guide leg end and a first input end, with the first guide leg end being connected to a first end ring capacitance of the RF coil. When the RF coil needs to be detuned, the first input end is connected to the first impedance circuit via the first RF line. When the RF coil needs to transmit an RF pulse signal, the first input end is connected to the RF power source via the first RF line. The need for a switch element is thereby reduced as is harm resulting from breakdown of such a switch element. An impedance circuit can be combined with a switch element to realize detuning jointly, and a good detuning effect can be achieved by a small number of switch elements.

3. 发明授权

US10310035B2 Body coil and magnetic resonance imaging system 有权
公开(公告)号：US10310035B2
公开(公告)日：2019-06-04
申请号：US15337045
申请日：2016-10-28
申请人： Siemens Healthcare GmbH
发明人： Wen Ming Li , Tong Tong , Markus Vester , JianMin Wang
IPC分类号： G01V3/00 , G01R33/36 , G01R33/34
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.

4. 发明申请

US20210132173A1 HIGH INTEGRATED AND INTELLIGENT TX FRONT-END USED IN MRI SYSTEM 有权
公开(公告)号：US20210132173A1
公开(公告)日：2021-05-06
申请号：US17089883
申请日：2020-11-05
申请人： Siemens Healthcare GmbH
发明人： Hong Cheng , Zhi Bin Li , Wen Ming Li
IPC分类号： G01R33/58 , G01R33/36
摘要： In a device and method for monitoring an RF transmission circuit of an MRI device: a first power measurement signal is acquired that indicates a voltage of a first RF signal provided by an RF power amplifier of the RF transmission circuit; two second power measurement signals are received that each indicate a voltage of one second RF signal, the two second RF signals being generated based on the first RF signal by a bridge of the circuit and transmitted via an RF transmit coil; an inverse matrix calculation is performed based on the two second power measurement signals to obtain a voltage calculation value; the voltage calculation value is compared with the first power measurement signal; an operational status of the RF transmission circuit is determined based on a difference between the voltage calculation value and a voltage value of the first power measurement signal.

5. 发明申请

US20180348316A1 RADIO-FREQUENCY CHOKE RESONATOR ASSEMBLY, COIL CABLE AND MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
公开(公告)号：US20180348316A1
公开(公告)日：2018-12-06
申请号：US15994356
申请日：2018-05-31
申请人： Siemens Healthcare GmbH
发明人： Shu Du , Jun You , Wen Ming Li , JianMin Wang
IPC分类号： G01R33/36 , H01F27/28 , H01P7/00 , G01R33/421
摘要： An RF choke resonator assembly has a cylindrical magnetic field shielding case with openings at two ends thereof, a magnetic field shielding plate and a winding skeleton, and a capacitive plate inside the case. The magnetic field shielding plate closes the opening at one end of the case, and has a through-hole allowing a cable to pass there through. The cable is wound on the winding skeleton. The capacitive plate is disposed opposite the magnetic field shielding plate in the case, separated therefrom by the winding skeleton, and is electrically connected to the case in a closed manner. The capacitive plate has a through-hole allowing the cable to pass there through. The capacitive plate is remote from the other opening case end opposite the opening closed by the magnetic field shielding plate. An insulation space is formed at that other opening, having a length in the axial direction greater than or equal to one quarter of the length of the magnetic field shielding case in the axial direction.

6. 发明申请

US20180067178A1 MAGNETIC RESONANCE SIGNAL RECEIVING APPARATUS AND LOCAL COIL 审中-公开
公开(公告)号：US20180067178A1
公开(公告)日：2018-03-08
申请号：US15696500
申请日：2017-09-06
申请人： Siemens Healthcare GmbH
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.

7. 发明申请

US20170123024A1 BODY COIL AND MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开
公开(公告)号：US20170123024A1
公开(公告)日：2017-05-04
申请号：US15337045
申请日：2016-10-28
申请人： Siemens Healthcare GmbH
发明人： Wen Ming Li , Tong Tong , Markus Vester , JianMin Wang
IPC分类号： G01R33/36 , G01R33/34
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.

8. 发明授权

US11513176B2 Compact hybrid orthogonal signal generator for MRI front-end 有权
公开(公告)号：US11513176B2
公开(公告)日：2022-11-29
申请号：US17375529
申请日：2021-07-14
申请人： Siemens Healthcare GmbH
发明人： Hong Cheng , Zhi Bin Li , Wen Ming Li , JianMin Wang
IPC分类号： G01R33/34 , G01R33/36 , H01F38/14
摘要： The disclosure relates to a hybrid orthogonal signal generator, a coil transmission front-end device, an RF coil system, and an MRI system. The hybrid orthogonal signal generator has an input end for receiving an RF signal, generates a hybrid orthogonal excitation signal on the basis of the RF signal, and provides the hybrid orthogonal excitation signal by means of an output end of the hybrid orthogonal signal generator, and comprises: a first conductor, arranged in a plane and being arc-shaped; and a second conductor having mutual inductance with the first conductor, the second conductor being connected between the input end and output end, wherein the first conductor and second conductor are parallel and arranged as mirror images of each other. The hybrid orthogonal signal generator has a compact size and is suitable for providing hybrid orthogonal excitation signals for an MRI system with a low field strength.

9. 发明申请

US20220018917A1 COMPACT HYBRID ORTHOGONAL SIGNAL GENERATOR FOR MRI FRONT-END 有权
公开(公告)号：US20220018917A1
公开(公告)日：2022-01-20
申请号：US17375529
申请日：2021-07-14
申请人： Siemens Healthcare GmbH
发明人： Hong Cheng , Zhi Bin Li , Wen Ming Li , JianMin Wang
IPC分类号： G01R33/34 , H01F38/14 , G01R33/36
摘要： The disclosure relates to a hybrid orthogonal signal generator, a coil transmission front-end device, an RF coil system, and an MRI system. The hybrid orthogonal signal generator has an input end for receiving an RF signal, generates a hybrid orthogonal excitation signal on the basis of the RF signal, and provides the hybrid orthogonal excitation signal by means of an output end of the hybrid orthogonal signal generator, and comprises: a first conductor, arranged in a plane and being arc-shaped; and a second conductor having mutual inductance with the first conductor, the second conductor being connected between the input end and output end, wherein the first conductor and second conductor are parallel and arranged as mirror images of each other. The hybrid orthogonal signal generator has a compact size and is suitable for providing hybrid orthogonal excitation signals for an MRI system with a low field strength.

10. 发明授权

US10488476B2 Radio-frequency choke resonator assembly, coil cable and magnetic resonance imaging apparatus 有权
公开(公告)号：US10488476B2
公开(公告)日：2019-11-26
申请号：US15994356
申请日：2018-05-31
申请人： Siemens Healthcare GmbH
发明人： Shu Du , Jun You , Wen Ming Li , JianMin Wang
IPC分类号： G01R33/36 , G01R33/421 , H01P7/00 , H01F27/28 , H01F27/02 , G01R33/422
CPC分类号： G01R33/3685 , G01R33/4215 , H01F27/02 , H01F27/2885 , H01P7/005 , G01R33/422
摘要： An RF choke resonator assembly has a cylindrical magnetic field shielding case with openings at two ends thereof, a magnetic field shielding plate and a winding skeleton, and a capacitive plate inside the case. The magnetic field shielding plate closes the opening at one end of the case, and has a through-hole allowing a cable to pass there through. The cable is wound on the winding skeleton. The capacitive plate is disposed opposite the magnetic field shielding plate in the case, separated therefrom by the winding skeleton, and is electrically connected to the case in a closed manner. The capacitive plate has a through-hole allowing the cable to pass there through. The capacitive plate is remote from the other opening case end opposite the opening closed by the magnetic field shielding plate. An insulation space is formed at that other opening, having a length in the axial direction greater than or equal to one quarter of the length of the magnetic field shielding case in the axial direction.

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