WO2024139326A1 - Dispositif de protection de bobine radiofréquence pour un système d'imagerie par résonance magnétique - Google Patents

Dispositif de protection de bobine radiofréquence pour un système d'imagerie par résonance magnétique Download PDF

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Publication number
WO2024139326A1
WO2024139326A1 PCT/CN2023/115660 CN2023115660W WO2024139326A1 WO 2024139326 A1 WO2024139326 A1 WO 2024139326A1 CN 2023115660 W CN2023115660 W CN 2023115660W WO 2024139326 A1 WO2024139326 A1 WO 2024139326A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio frequency
frequency coil
bosses
placement cylinder
magnetic resonance
Prior art date
Application number
PCT/CN2023/115660
Other languages
English (en)
Chinese (zh)
Inventor
陶世良
沈燕玉
何钧
Original Assignee
上海辰光医疗科技股份有限公司
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 上海辰光医疗科技股份有限公司 filed Critical 上海辰光医疗科技股份有限公司
Publication of WO2024139326A1 publication Critical patent/WO2024139326A1/fr

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Classifications

    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

Definitions

  • a radio frequency coil protection device for a magnetic resonance imaging system comprising a radio frequency coil placement cylinder and an external protection sleeve, characterized in that: the outer edge of the radio frequency coil placement cylinder is sleeved with the external protection sleeve, one side of the outer edge of the radio frequency coil placement cylinder is provided with an annular groove, and a plurality of bosses are evenly distributed in an annular manner on the annular groove; the bottom of the boss is fitted with the annular groove, the top of the boss is an arc surface, and the radius of the arc surface of the boss is half of the outer diameter of the radio frequency coil placement cylinder; the central axis of the arc surface of the boss is consistent with the central axis of the radio frequency coil placement cylinder.
  • the radio frequency coil placement cylinder and the external protection sleeve are cylindrical structures, and the length of the radio frequency coil placement cylinder is greater than that of the external protection sleeve.
  • the inner diameter of the outer protection sleeve is consistent with the outer diameter of the cylinder where the radio frequency coil is placed.
  • the bosses are provided in two groups, and the two groups of bosses are evenly distributed in annular shapes on the outer edge of the annular groove.
  • the arc surface at the top of the boss is in contact with the inner wall of the external protection sleeve.
  • the radio frequency coil circuit and components are arranged in the annular groove between the bosses.
  • the radio frequency coil circuit and components are distributed in the annular grooves between the bosses to prevent the circuit and components from being subjected to external forces, thereby protecting the radio frequency coil.
  • the external protective sleeve effectively prevents external sharp objects from directly contacting components and circuits, thereby protecting the RF coil.
  • an outer protective sleeve 2 is provided on the outer edge of the RF coil placement cylinder 1
  • an annular groove 4 is provided on one side of the outer edge of the RF coil placement cylinder 1
  • a plurality of bosses 3 are evenly distributed in an annular shape on the annular groove 4; the bottom of the boss 3 fits with the annular groove 4, the top of the boss 3 is an arc surface, and the radius of the arc surface of the boss 3 is half of the outer diameter of the RF coil placement cylinder 1; the central axis of the arc surface of the boss 3 is consistent with the central axis of the RF coil placement cylinder 1.
  • bosses 3 There are two groups of bosses 3 , and the two groups of bosses 3 are evenly distributed in an annular shape on the outer edge of the annular groove 4 .
  • the arc surface at the top of the boss 3 fits with the inner wall of the external protection sleeve 2 .
  • the radio frequency coil circuit and components are arranged in the annular groove 4 between the bosses 3 .
  • the inner diameter of the external protection sleeve 2 is the same as the outer diameter of the RF coil placement cylinder 1 .
  • the external protection sleeve 2 can be sleeved on the RF coil placement cylinder 1 to protect the RF coil portion.
  • the RF coil placement cylinder 1 has an annular groove 4.
  • the surface of the boss 3 is an arc surface, which can fit with the inner wall of the external protective sleeve 2.
  • the RF coil circuit is distributed in the annular groove 4 between the bosses 3, and the height of the boss 3 is not less than the height of the component. In this way, the RF coil can be protected by the cylinder and the bosses.
  • the inner diameter of the external protection sleeve 2 is the same as the outer diameter of the RF coil placement cylinder 1 , which can protect the RF coil components and prevent external forces from directly acting on the components.
  • the utility model can maximize the FOV of the radio frequency coil within a limited magnet aperture and can protect the radio frequency coil at the same time.
  • the radio frequency coil circuit and components are distributed in the annular grooves between the bosses to prevent the circuit and components from being subjected to external forces, thereby protecting the radio frequency coil.
  • the external protective sleeve effectively prevents external sharp objects from directly contacting components and circuits, thereby protecting the RF coil.
  • the utility model can be used to protect the circuit part of radio frequency coils such as bird cage coils, phased array coils, orthogonal coils, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Dispositif de protection de bobine radiofréquence pour un système d'imagerie par résonance magnétique, comprenant un cylindre de placement de bobine radiofréquence (1) et un manchon de protection externe (2). Le manchon de protection externe (2) est emmanché sur le bord externe du cylindre de placement de bobine radiofréquence (1), une rainure annulaire (4) est formée dans un côté du bord externe du cylindre de placement de bobine radiofréquence (1), et une pluralité de bossages (3) sont répartis de manière annulaire et uniforme sur la rainure annulaire (4) ; les parties inférieures des bossages (3) sont fixées à la rainure annulaire (4), les parties supérieures des bossages (3) sont des surfaces d'arc circulaire, et le rayon des surfaces d'arc circulaire des bossages (3) est la moitié du diamètre extérieur du cylindre de placement de bobine radiofréquence (1) ; et l'axe central des surfaces d'arc circulaire des bossages (3) correspond à l'axe central du cylindre de placement de bobine radiofréquence (1). Comparativement à l'état de la technique, le FOV d'une bobine radiofréquence peut être optimisé dans une ouverture d'aimant limitée, et la bobine radiofréquence peut être protégée dans le même temps.
PCT/CN2023/115660 2022-12-28 2023-08-30 Dispositif de protection de bobine radiofréquence pour un système d'imagerie par résonance magnétique WO2024139326A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202223511231.8 2022-12-28
CN202223511231.8U CN219245745U (zh) 2022-12-28 2022-12-28 一种用于磁共振成像系统的射频线圈保护装置

Publications (1)

Publication Number Publication Date
WO2024139326A1 true WO2024139326A1 (fr) 2024-07-04

Family

ID=86842425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/115660 WO2024139326A1 (fr) 2022-12-28 2023-08-30 Dispositif de protection de bobine radiofréquence pour un système d'imagerie par résonance magnétique

Country Status (2)

Country Link
CN (1) CN219245745U (fr)
WO (1) WO2024139326A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN219245745U (zh) * 2022-12-28 2023-06-23 上海辰光医疗科技股份有限公司 一种用于磁共振成像系统的射频线圈保护装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100134109A1 (en) * 2008-11-28 2010-06-03 Hiromitsu Takamori High frequency coil unit and magnetic resonance diagnostic apparatus
CN202855468U (zh) * 2012-08-30 2013-04-03 上海联影医疗科技有限公司 一种用于磁共振系统的超导磁体线圈组件及磁共振系统
CN205181369U (zh) * 2015-11-30 2016-04-27 上海联影医疗科技有限公司 一种pet-mr扫描装置
CN208864324U (zh) * 2017-11-13 2019-05-17 北京大学第三医院 动物磁共振成像装置
CN111722166A (zh) * 2019-12-12 2020-09-29 杭州拉莫科技有限公司 一种用于超高场磁共振成像系统的啮齿类小动物成像装置
CN112162224A (zh) * 2020-09-25 2021-01-01 中国科学院精密测量科学与技术创新研究院 一种高介电常数的超高场动物磁共振射频探头
CN212723297U (zh) * 2020-06-24 2021-03-16 上海联影医疗科技股份有限公司 线圈支撑结构、体线圈以及磁共振系统
CN215263981U (zh) * 2021-04-28 2021-12-21 上海联影医疗科技股份有限公司 磁共振线圈装置及磁共振设备
CN217902007U (zh) * 2022-05-13 2022-11-25 深圳市特深电气有限公司 大功率射频线圈和磁共振成像系统
CN219245745U (zh) * 2022-12-28 2023-06-23 上海辰光医疗科技股份有限公司 一种用于磁共振成像系统的射频线圈保护装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100134109A1 (en) * 2008-11-28 2010-06-03 Hiromitsu Takamori High frequency coil unit and magnetic resonance diagnostic apparatus
CN202855468U (zh) * 2012-08-30 2013-04-03 上海联影医疗科技有限公司 一种用于磁共振系统的超导磁体线圈组件及磁共振系统
CN205181369U (zh) * 2015-11-30 2016-04-27 上海联影医疗科技有限公司 一种pet-mr扫描装置
CN208864324U (zh) * 2017-11-13 2019-05-17 北京大学第三医院 动物磁共振成像装置
CN111722166A (zh) * 2019-12-12 2020-09-29 杭州拉莫科技有限公司 一种用于超高场磁共振成像系统的啮齿类小动物成像装置
CN212723297U (zh) * 2020-06-24 2021-03-16 上海联影医疗科技股份有限公司 线圈支撑结构、体线圈以及磁共振系统
CN112162224A (zh) * 2020-09-25 2021-01-01 中国科学院精密测量科学与技术创新研究院 一种高介电常数的超高场动物磁共振射频探头
CN215263981U (zh) * 2021-04-28 2021-12-21 上海联影医疗科技股份有限公司 磁共振线圈装置及磁共振设备
CN217902007U (zh) * 2022-05-13 2022-11-25 深圳市特深电气有限公司 大功率射频线圈和磁共振成像系统
CN219245745U (zh) * 2022-12-28 2023-06-23 上海辰光医疗科技股份有限公司 一种用于磁共振成像系统的射频线圈保护装置

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