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759 条记录 (耗时 0.019 秒)

    Vibration generating system for elastography equipment and control method thereof
    1.
    发明授权
    Vibration generating system for elastography equipment and control method thereof 有权

    公开(公告)号：US12123928B2

    公开(公告)日：2024-10-22

    申请号：US17438389

    申请日：2019-03-18

    申请人： Jing Guo ,  Ingolf Sack ,  Juergen Braun ,  Tassilo Heinze

    发明人： Jing Guo ,  Ingolf Sack ,  Juergen Braun ,  Tassilo Heinze

    IPC分类号： G01R33/30 ,  A61B5/00 ,  A61B5/055 ,  G01R33/54 ,  G01R33/563

    CPC分类号： G01R33/307 ,  A61B5/0051 ,  A61B5/055 ,  G01R33/543 ,  G01R33/56358

    摘要： A vibration generating system (100) for elastography equipment and a control method thereof, elastography equipment, a method for controlling the vibration generating system (100) for elastography equipment, a method for operating the elastography equipment, and a corresponding computer-readable medium. The vibration generating system (100) for elastography equipment comprises: a control unit (1), a pressure source (2), a pressure regulating unit (3), and a vibration transmitting unit (4). The pressure regulating unit (3) is in fluidic communication with the pressure source (2) and the vibration transmitting unit (4), respectively. The vibration transmitting unit (4) is used to transmit vibration according to a pressure acting thereon. The control unit (1) is coupled with the pressure regulating unit (3). The control unit (1) is configured to obtain a control parameter by using a look-up table module (12) according to inputted elastography conditions, so as to control the pressure regulating unit (3).

    Magnetic Resonance Imaging System
    3.
    发明公开
    Magnetic Resonance Imaging System 审中-公开

    公开(公告)号：US20230333182A1

    公开(公告)日：2023-10-19

    申请号：US18327734

    申请日：2023-06-01

    申请人： SINO CANADA HEALTH ENGINEERING RESEARCH INSTITUTE (HEFEI) LTD.

    发明人： Haoqin ZHU ,  John SAUNDERS ,  Gordon A. KLIMENKO ,  Darrell VAN MOL

    IPC分类号： G01R33/422 ,  G01R33/30

    CPC分类号： G01R33/422 ,  G01R33/307

    摘要： The present application relates to a magnetic resonance imaging system comprising: a magnetic resonance imaging device comprising a cylindrical gradient coil apparatus, a radio frequency coil apparatus configured to transmit radio frequency signals at a first frequency, and a first shielding apparatus comprising a first shielding layer arranged radially between the gradient coil apparatus and the radio frequency coil apparatus; and a patient table device comprising a table portion configured for a patient to lie on it, and a second shielding apparatus arranged around at least a portion of the table portion, wherein when the magnetic resonance imaging device is engaged with the patient table device, the first shielding apparatus is in electrical contact with the second shielding apparatus to form a cutoff waveguide which is capable of cutting off radio frequency signals at frequencies below a second frequency, the second frequency being greater than the first frequency.

    MAGNETICALLY INDUCED TORQUE MEASUREMENT DEVICE AND METHOD BASED ON TORSIONAL SPRING METHOD
    4.
    发明公开
    MAGNETICALLY INDUCED TORQUE MEASUREMENT DEVICE AND METHOD BASED ON TORSIONAL SPRING METHOD 审中-公开

    公开(公告)号：US20230258516A1

    公开(公告)日：2023-08-17

    申请号：US18109540

    申请日：2023-02-14

    申请人： Fudan University ,  SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd.

    发明人： Yong Yin ,  Xiaomei Wu ,  Dirong Ma

    IPC分类号： G01L3/10 ,  G01R33/30

    CPC分类号： G01L3/101 ,  G01R33/307

    摘要： The invention relates to the field of detection of implantable medical devices, particularly to magnetically induced torque measurement devices and method of implants in magnetic resonance imaging systems. The measurement device includes transmission shafts, gear sets, a knob, an indicator, a detachable torsion spring set, a loading tray, a protractor, and an MRI-compatible camera. The measurement device changes its measurement range by replacing the detachable torsion spring set, adjusts a height of the loading tray by a lifting platform, amplifies a rotation angle of the knob by the gear sets, and records deflection angles of the loading tray by the MRI-compatible camera. The measurement device provides the detachable torsion spring set, which is suitable for measuring most samples; and provides a height-adjustable loading tray, which can be applied to MR systems with different center heights.

    FASTENING AN NMR PROBE HEAD TO THE SHIM TUBE END OF THE NMR MAGNET WITH AUTOMATABLE FUNCTIONAL CONNECTIONS
    7.
    发明公开
    FASTENING AN NMR PROBE HEAD TO THE SHIM TUBE END OF THE NMR MAGNET WITH AUTOMATABLE FUNCTIONAL CONNECTIONS 审中-公开

    公开(公告)号：US20230184854A1

    公开(公告)日：2023-06-15

    申请号：US18066381

    申请日：2022-12-15

    申请人： Bruker BioSpin GmbH

    发明人： Alexander KRAHN ,  David OSEN ,  Priyanga BANDARA ,  Jürgen GANZ

    IPC分类号： G01R33/30 ,  G01R33/31

    CPC分类号： G01R33/307 ,  G01R33/31

    摘要： An apparatus for detachably fastening an NMR probe head with a pedestal box to an NMR magnet system of an NMR spectrometer has a holding system rigidly connected to the magnet system. A base plate of the holding system fastens detachably to the probe head pedestal box. A receiving device on or in the base plate receives all electric, electronic, optical, pneumatic, and thermal feed lines and optionally discharge lines required for the operation of the probe head. A lower side of the base plate in contact with an upper side of the pedestal box comprises multiple connecting elements into which the feed lines and discharge lines merge. The upper side of the pedestal box comprises receiving elements into which the feed lines and discharge lines from the connecting elements merge in a predetermined relative assembled position.

    NMR PROBE HEAD COMPRISING A RELEASABLE HF SEAL
    9.
    发明申请
    NMR PROBE HEAD COMPRISING A RELEASABLE HF SEAL 审中-公开

    公开(公告)号：US20180340993A1

    公开(公告)日：2018-11-29

    申请号：US15988508

    申请日：2018-05-24

    申请人： Bruker BioSpin AG

    发明人： Roger MEISTER ,  Daniel SCHMIDIG

    IPC分类号： G01R33/36 ,  G01R33/30 ,  G01R33/34

    CPC分类号： G01R33/3685 ,  G01R33/307 ,  G01R33/34007 ,  G01R33/34092 ,  G01R33/422

    摘要： An NMR probe head (1) comprising one or more HF coils (2) arranged around a vertical axis of symmetry (z), and an HF network (3) surrounded by an apparatus (4) for shielding from external HF radiation comprising an electrically conductive shielding tube (5) arranged along a z-axis and that can be moved around the HF coils and the HF network in a z direction towards a base disc (6)A shielding disc (7) is provided at an axial distance from the base disc, wherein a tensible HF seal (8) is arranged between the shielding disc and the shielding tube. When the shielding tube is in a mounted state, the HF seal, in a first mounting state, can slide over the shielding disc in an unbraced and force-free manner. When the HF seal is in a second mounting state, the HF seal is mechanically braced between the shielding disc and the shielding tube to ensure an electrically conductive connection.

    PORTABLE NMR DEVICE FOR DETECTING AN OIL CONCENTRATION IN WATER
    10.
    发明申请
    PORTABLE NMR DEVICE FOR DETECTING AN OIL CONCENTRATION IN WATER 审中-公开

    公开(公告)号：US20180238819A1

    公开(公告)日：2018-08-23

    申请号：US15440606

    申请日：2017-02-23

    申请人： Aspect Imaging Ltd.

    发明人： Uri RAPOPORT

    IPC分类号： G01N24/08 ,  G01N33/18

    CPC分类号： G01N24/082 ,  G01N33/18 ,  G01N33/1833 ,  G01R33/307 ,  G01R33/421

    摘要： A portable nuclear magnetic resonance (NMR) device and a method of determining an oil concertation in water are disclosed. The portable NMR device can include a magnetic field assembly to carry out NMR measurements of water. The portable NMR device can include a housing to at least partly surround the magnetic field assembly and to substantially eliminate a magnetic fringe field generated by the magnetic field assembly outside the housing. The portable NMR device can also include an analysis module to receive the NMR measurement of the water and to determine, based on the received NMR measurements of the water, the oil concentration in the water.