JP2025037795A - シールド装置及び磁気共鳴デバイス - Google Patents

シールド装置及び磁気共鳴デバイス Download PDF

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Publication number
JP2025037795A
JP2025037795A JP2024112489A JP2024112489A JP2025037795A JP 2025037795 A JP2025037795 A JP 2025037795A JP 2024112489 A JP2024112489 A JP 2024112489A JP 2024112489 A JP2024112489 A JP 2024112489A JP 2025037795 A JP2025037795 A JP 2025037795A
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JP
Japan
Prior art keywords
shielding
tube
shield
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
JP2024112489A
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English (en)
Japanese (ja)
Other versions
JP2025037795A5 (https=
Inventor
アレイ ニコラス
Aley Nicholas
シュトレーライン クリストファー
Stroehlein Christopher
ピニョ メネセス ブルーノ
Pinho Meneses Bruno
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 Healthcare Ltd
Original Assignee
Siemens Healthcare 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 Healthcare Ltd filed Critical Siemens Healthcare Ltd
Publication of JP2025037795A publication Critical patent/JP2025037795A/ja
Publication of JP2025037795A5 publication Critical patent/JP2025037795A5/ja
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)
JP2024112489A 2023-08-30 2024-07-12 シールド装置及び磁気共鳴デバイス Pending JP2025037795A (ja)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
JP2025037795A true JP2025037795A (ja) 2025-03-18
JP2025037795A5 JP2025037795A5 (https=) 2026-04-07

Family

ID=87889450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024112489A Pending JP2025037795A (ja) 2023-08-30 2024-07-12 シールド装置及び磁気共鳴デバイス

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
CN119535316A (zh) 2025-02-28
EP4703753A1 (en) 2026-03-04
CN121641630A (zh) 2026-03-10
EP4517359A1 (en) 2025-03-05

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