CN119535316A - 屏蔽装置和磁共振设备 - Google Patents

屏蔽装置和磁共振设备 Download PDF

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Publication number
CN119535316A
CN119535316A CN202411191042.8A CN202411191042A CN119535316A CN 119535316 A CN119535316 A CN 119535316A CN 202411191042 A CN202411191042 A CN 202411191042A CN 119535316 A CN119535316 A CN 119535316A
Authority
CN
China
Prior art keywords
shielding
tube
shielding structure
spacer
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202411191042.8A
Other languages
English (en)
Chinese (zh)
Inventor
尼古拉斯·阿利
克里斯托弗·施特勒莱因
布鲁诺·皮尼奥·梅内塞斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Healthineers Ltd
Original Assignee
Siemens Healthineers Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Healthineers Ltd filed Critical Siemens Healthineers Ltd
Publication of CN119535316A publication Critical patent/CN119535316A/zh
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • G01R33/34053—Solenoid coils; Toroidal coils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3804—Additional hardware for cooling or heating of the magnet assembly, for housing a cooled or heated part of the magnet assembly or for temperature control of the magnet assembly
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/04—Cooling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN202411191042.8A 2023-08-30 2024-08-28 屏蔽装置和磁共振设备 Pending CN119535316A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23275129.7 2023-08-30
EP23275129.7A EP4517359A1 (en) 2023-08-30 2023-08-30 Shielding arrangement and magnetic resonance device

Publications (1)

Publication Number Publication Date
CN119535316A true CN119535316A (zh) 2025-02-28

Family

ID=87889450

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202411191042.8A Pending CN119535316A (zh) 2023-08-30 2024-08-28 屏蔽装置和磁共振设备
CN202511199507.9A Pending CN121641630A (zh) 2023-08-30 2025-08-26 低温系统和磁共振装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202511199507.9A Pending CN121641630A (zh) 2023-08-30 2025-08-26 低温系统和磁共振装置

Country Status (4)

Country Link
US (2) US20250076431A1 (https=)
EP (2) EP4517359A1 (https=)
JP (1) JP2025037795A (https=)
CN (2) CN119535316A (https=)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6783059B2 (en) * 2002-12-23 2004-08-31 General Electric Company Conduction cooled passively-shielded MRI magnet
DE102007008515B4 (de) * 2007-02-21 2010-05-12 Siemens Ag Anordnung mit einem Grundfeldmagneten und mit einer Gradientenspule eines Magnetresonanzgeräts
GB2484079B (en) * 2010-09-28 2013-02-27 Siemens Plc A hollow cylindrical thermal shield for a tubular cryogenically cooled superconducting magnet
GB2487215B (en) * 2011-01-13 2014-12-10 Siemens Plc Electrically conductive shield for superconducting electromagnet system
US9322892B2 (en) * 2011-12-20 2016-04-26 General Electric Company System for magnetic field distortion compensation and method of making same
GB2503460B (en) * 2012-06-26 2014-08-13 Siemens Plc Method and apparatus for reduction of gradient coil vibration in MRI systems
CN103901371B (zh) * 2012-12-24 2017-04-19 通用电气公司 用于磁共振成像mri系统的致冷器和方法
CN105745554B (zh) * 2013-11-22 2020-05-22 皇家飞利浦有限公司 对动态汽化减少改进的低温容器、超导磁体和mr检查系统
JP6559462B2 (ja) * 2015-05-12 2019-08-14 株式会社東芝 極低温容器および超電導磁石装置
EP4141347A4 (en) * 2020-04-23 2023-10-25 Sumitomo Heavy Industries, LTD. SUPERCONDUCTING MAGNET DEVICE, CRYOGENIC FREEZING MACHINE, AND COOLING METHOD FOR SUPERCONDUCTING MAGNET DEVICE

Also Published As

Publication number Publication date
US20260063741A1 (en) 2026-03-05
US20250076431A1 (en) 2025-03-06
EP4703753A1 (en) 2026-03-04
JP2025037795A (ja) 2025-03-18
CN121641630A (zh) 2026-03-10
EP4517359A1 (en) 2025-03-05

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