KR20040010393A - 자기 공명 촬영 시스템용 자계 발생기 조립 방법 및 자기공명 촬영 시스템용 자계 발생기 - Google Patents
자기 공명 촬영 시스템용 자계 발생기 조립 방법 및 자기공명 촬영 시스템용 자계 발생기 Download PDFInfo
- Publication number
- KR20040010393A KR20040010393A KR1020030051363A KR20030051363A KR20040010393A KR 20040010393 A KR20040010393 A KR 20040010393A KR 1020030051363 A KR1020030051363 A KR 1020030051363A KR 20030051363 A KR20030051363 A KR 20030051363A KR 20040010393 A KR20040010393 A KR 20040010393A
- Authority
- KR
- South Korea
- Prior art keywords
- block
- field generator
- rails
- resonance imaging
- magnetic
- 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.)
- Abandoned
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 48
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000003302 ferromagnetic material Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical group [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
-
- 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
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- High Energy & Nuclear Physics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/064,565 | 2002-07-26 | ||
| US10/064,565 US6664878B1 (en) | 2002-07-26 | 2002-07-26 | Method for assembling magnetic members for magnetic resonance imaging magnetic field generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20040010393A true KR20040010393A (ko) | 2004-01-31 |
Family
ID=29709246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030051363A Abandoned KR20040010393A (ko) | 2002-07-26 | 2003-07-25 | 자기 공명 촬영 시스템용 자계 발생기 조립 방법 및 자기공명 촬영 시스템용 자계 발생기 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6664878B1 (https=) |
| EP (1) | EP1385017B1 (https=) |
| JP (1) | JP4344882B2 (https=) |
| KR (1) | KR20040010393A (https=) |
| CN (1) | CN100337585C (https=) |
| DE (1) | DE60323573D1 (https=) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6859123B2 (en) * | 2003-04-03 | 2005-02-22 | Ge Medical Systems Global Technology Company, Llc | Methods and apparatus for positioning permanent magnetic blocks |
| US7373716B2 (en) * | 2003-10-22 | 2008-05-20 | Dexter Magnetic Technologies, Inc. | Method for constructing permanent magnet assemblies |
| US7417432B2 (en) * | 2004-03-03 | 2008-08-26 | Koninklijke Philips Electronics N.V. | Asymmetric ultra-short gradient coil for magnetic resonance imaging system |
| US7631411B2 (en) * | 2004-06-28 | 2009-12-15 | General Electric Company | Method of manufacturing support structure for open MRI |
| US6958672B1 (en) * | 2004-06-30 | 2005-10-25 | General Electric Company | System and method for magnetizing blocks on a magnet assembly of an MRI device |
| US7796002B2 (en) * | 2004-09-30 | 2010-09-14 | Hitachi Metals, Ltd. | Magnetic field generator for MRI |
| US20060078844A1 (en) * | 2004-10-07 | 2006-04-13 | Goldman Paul D | Oral care systems, oral care devices and methods of use |
| GB2436365B (en) * | 2006-03-21 | 2008-04-02 | Siemens Magnet Technology Ltd | Apparatus and method for shimming the magnetic field generated by a magnet |
| GB2436364B (en) * | 2006-03-21 | 2008-07-02 | Siemens Magnet Technology Ltd | Apparatus for shimming a magnetic field |
| CN102333482B (zh) * | 2009-02-27 | 2014-05-28 | 日立金属株式会社 | 磁场产生装置 |
| CN104931902A (zh) * | 2015-06-30 | 2015-09-23 | 东南大学 | 一种用于集成核磁共振磁体和探头的装置 |
| JP6407825B2 (ja) * | 2015-09-02 | 2018-10-17 | 信越化学工業株式会社 | 永久磁石磁気回路の製造方法 |
| US10847294B2 (en) * | 2017-07-10 | 2020-11-24 | Aspect Imaging Ltd. | System for generating a magnetic field |
| CN109669150B (zh) * | 2018-12-29 | 2024-07-16 | 佛山瑞加图医疗科技有限公司 | 一种圆周磁体安装专用设备及安装方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1316375C (en) | 1982-08-21 | 1993-04-20 | Masato Sagawa | Magnetic materials and permanent magnets |
| US4931760A (en) | 1986-10-08 | 1990-06-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Uniform magnetic field generator |
| GB8825529D0 (en) | 1988-11-01 | 1988-12-07 | Oxford Magnet Tech | Magnetic field generating assembly |
| GB9105286D0 (en) | 1991-03-13 | 1991-04-24 | Oxford Instr Ltd | Magnetic field generating apparatus |
| JPH0669027A (ja) | 1991-10-24 | 1994-03-11 | Hitachi Ltd | 磁場発生装置 |
| JP2699250B2 (ja) | 1993-01-22 | 1998-01-19 | 信越化学工業株式会社 | 磁場発生装置及び磁場発生装置製造方法 |
| DE69937722T2 (de) | 1998-04-14 | 2008-12-04 | Hitachi Metals, Ltd. | Magnetfelderzeuger zur bildgewinnung mittels kernspinresonanz |
| JP2953659B1 (ja) | 1998-08-06 | 1999-09-27 | 住友特殊金属株式会社 | Ｍｒｉ用磁界発生装置およびその組立方法並びにそれに用いる磁石ユニットの組立方法 |
| JP2000139874A (ja) | 1998-09-02 | 2000-05-23 | Sumitomo Special Metals Co Ltd | Ｍｒｉ用磁界発生装置 |
| CN1159576C (zh) * | 1999-05-10 | 2004-07-28 | 三星电子株式会社 | 制造磁共振成像系统用的主磁体总成的方法 |
| EP1666910B1 (en) * | 1999-11-16 | 2009-03-11 | Hitachi Metals, Ltd. | Magnetic-field generator comprising a pole-piece unit |
| JP4135127B2 (ja) * | 2000-04-21 | 2008-08-20 | 信越化学工業株式会社 | 磁場発生装置の組立方法 |
| JP3788573B2 (ja) * | 2000-11-16 | 2006-06-21 | 信越化学工業株式会社 | Ｍｒｉ用磁気回路の組立方法 |
-
2002
- 2002-07-26 US US10/064,565 patent/US6664878B1/en not_active Expired - Lifetime
-
2003
- 2003-07-18 DE DE60323573T patent/DE60323573D1/de not_active Expired - Lifetime
- 2003-07-18 EP EP03254498A patent/EP1385017B1/en not_active Expired - Lifetime
- 2003-07-25 JP JP2003279515A patent/JP4344882B2/ja not_active Expired - Fee Related
- 2003-07-25 KR KR1020030051363A patent/KR20040010393A/ko not_active Abandoned
- 2003-07-28 CN CNB031436366A patent/CN100337585C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6664878B1 (en) | 2003-12-16 |
| CN1491613A (zh) | 2004-04-28 |
| DE60323573D1 (de) | 2008-10-30 |
| CN100337585C (zh) | 2007-09-19 |
| EP1385017A1 (en) | 2004-01-28 |
| JP4344882B2 (ja) | 2009-10-14 |
| EP1385017B1 (en) | 2008-09-17 |
| JP2004057829A (ja) | 2004-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20030725 |
|
| PG1501 | Laying open of application | ||
| A201 | Request for examination | ||
| PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20080725 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20030725 Comment text: Patent Application |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20100728 Patent event code: PE09021S01D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20110224 |
|
| NORF | Unpaid initial registration fee | ||
| PC1904 | Unpaid initial registration fee |