FI933834A - Polsko till en magnetografisk avbildningsapparat - Google Patents

Polsko till en magnetografisk avbildningsapparat Download PDF

Info

Publication number: FI933834A
Authority: FI; Finland
Prior art keywords: polsko; imaging device; magnetographic imaging; magnetographic; imaging
Prior art date: 1993-09-01

Application number

FI933834A

Other languages

English (en)

Finnish (fi)

Other versions

FI933834A0 (fi

Inventor

Ilmari Kinanen

Original Assignee

Picker Nordstar Oy

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.)

1993-09-01

Filing date

1993-09-01

Publication date

1995-03-02

1993-09-01 Application filed by Picker Nordstar Oy filed Critical Picker Nordstar Oy

1993-09-01 Priority to FI933834A priority Critical patent/FI933834A/sv

1993-09-01 Publication of FI933834A0 publication Critical patent/FI933834A0/fi

1995-03-02 Publication of FI933834A publication Critical patent/FI933834A/sv

1996-09-17 Priority to US08/714,968 priority patent/US5627471A/en

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
- G01R33/38—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
- G01R33/387—Compensation of inhomogeneities

Landscapes

Physics & Mathematics (AREA)
Condensed Matter Physics & Semiconductors (AREA)
General Physics & Mathematics (AREA)
Magnetic Resonance Imaging Apparatus (AREA)

FI933834A 1993-09-01 1993-09-01 Polsko till en magnetografisk avbildningsapparat FI933834A (sv)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
FI933834A FI933834A (sv)	1993-09-01	1993-09-01	Polsko till en magnetografisk avbildningsapparat
US08/714,968 US5627471A (en)	1993-09-01	1996-09-17	Pole piece for MR imager

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI933834A FI933834A (sv)	1993-09-01	1993-09-01	Polsko till en magnetografisk avbildningsapparat

Publications (2)

Publication Number	Publication Date
FI933834A0 FI933834A0 (fi)	1993-09-01
FI933834A true FI933834A (sv)	1995-03-02

Family

ID=8538514

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI933834A FI933834A (sv)	1993-09-01	1993-09-01	Polsko till en magnetografisk avbildningsapparat

Country Status (2)

Country	Link
US (1)	US5627471A (sv)
FI (1)	FI933834A (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU8053598A (en)	1997-05-23	1998-12-11	Transurgical, Inc.	Mri-guided therapeutic unit and methods
KR100373577B1 (ko) *	1997-12-26	2003-02-26	스미토모 도큐슈 긴조쿠 가부시키가이샤	자기 공명 촬영 장치용 자계 발생 장치
US6029081A (en) *	1998-03-19	2000-02-22	Picker International, Inc.	Movable magnets for magnetic resonance surgery
US6147495A (en) *	1998-08-28	2000-11-14	Picker International, Inc.	Magnetic resonance imaging with integrated poleface features
US5923235A (en) *	1998-10-23	1999-07-13	General Electric Company	Shim assembly for a pole face of a magnet
US6255928B1 (en) *	1998-11-02	2001-07-03	General Electric Company	Magnet having a shim for a laminated pole piece
DE10147984B4 (de) *	2001-09-28	2007-10-11	Siemens Ag	Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes
CN100504432C (zh) *	2003-05-23	2009-06-24	西门子（中国）有限公司	磁共振设备中的静磁场调节方法及其静磁场发生装置
CN100434038C (zh) *	2004-03-05	2008-11-19	西门子（中国）有限公司	磁共振成像设备磁场的调节装置
US7295012B1 (en) *	2006-04-28	2007-11-13	General Electric Company	Methods and apparatus for MRI shim elements
IT1397713B1 (it) *	2010-01-22	2013-01-24	Esaote Spa	Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico.

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB946340A (en) *	1961-05-25	1964-01-08	Swift Levick & Sons Ltd	Improvements in or relating to nuclear magnetic resonance magnets
US3223897A (en) *	1963-09-23	1965-12-14	Varian Associates	Apparatus for adjusting the configuration of a magnetic field
US4093912A (en) *	1976-09-20	1978-06-06	International Business Machines Corporation	NMR magnet assembly with pole face parallelism adjustment
EP0114889A1 (en) *	1982-08-04	1984-08-08	OLDENDORF, William H.	Adjustable magnet suitable for in vivo nmr imaging and method of adjusting the same
US4673882A (en) *	1984-03-06	1987-06-16	Buford J Philip	Magnetic system for nuclear magnetic resonance diagnostic device
EP0161782B1 (en) *	1984-04-11	1988-11-09	Sumitomo Special Metal Co., Ltd.	Magnetic field generating device for nmr-ct
GB8501442D0 (en) *	1985-01-21	1985-02-20	M & D Technology Ltd	Electromagnet
US4682111A (en) *	1985-03-05	1987-07-21	Kabushiki Kaisha Toshiba	Magnetic resonance imaging magnet
DE3779715T2 (de) *	1986-09-27	1993-01-28	Sumitomo Spec Metals	Vorrichtung zur erzeugung eines magnetfeldes fuer rechnergesteuerte tomographie mittels magnetischer kernresonanz.
FR2611975B1 (fr) *	1987-03-03	1995-02-17	Commissariat Energie Atomique	Systeme d'aimants permanents pour un champ magnetique intense
JPS63241905A (ja) *	1987-03-27	1988-10-07	Sumitomo Special Metals Co Ltd	磁界発生装置
DE3737133A1 (de) *	1987-11-02	1989-05-11	Siemens Ag	Homogenfeldmagnet mit profilierten polplatten
US5134374A (en) *	1989-06-01	1992-07-28	Applied Superconetics	Magnetic field control apparatus
JPH03131234A (ja) *	1989-07-07	1991-06-04	Sumitomo Special Metals Co Ltd	Ｍｒｉ用磁界発生装置
US5003276A (en) *	1989-08-11	1991-03-26	General Atomics	Method of site shimming on permanent magnets
JP2533758Y2 (ja) *	1989-12-13	1997-04-23	信越化学工業株式会社	磁場発生装置
EP0488015B1 (de) *	1990-11-30	1996-10-30	Siemens Aktiengesellschaft	Homogenfeldmagnet mit mindestens einer mechanisch auszurichtenden Polplatte
US5278534A (en) *	1992-09-01	1994-01-11	New York University	Magnetic structure having a mirror
EP0616230B1 (de) *	1993-03-15	1998-08-05	Siemens Aktiengesellschaft	Homogenfeldmagnet mit über Korrekturluftspalte beabstandeten Polplatteneinrichtungen seiner Polschuhe
GB2276946B (en) *	1993-04-08	1997-04-02	Oxford Magnet Tech	Improvements in or relating to MRI magnets
US5495222A (en) *	1994-04-15	1996-02-27	New York University	Open permanent magnet structure for generating highly uniform field

1993
- 1993-09-01 FI FI933834A patent/FI933834A/sv unknown
1996
- 1996-09-17 US US08/714,968 patent/US5627471A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FI933834A0 (fi)	1993-09-01
US5627471A (en)	1997-05-06

Publication	Publication Date	Title
DE69333213D1 (de)	2003-10-23	Bildlesevorrichtung
DE69401685D1 (de)	1997-03-20	Bildaufnahmevorrichtung
DE69420877D1 (de)	1999-11-04	Bilderzeugungsgerät
DE4491655T1 (de)	1995-04-27	Bildaufzeichnungseinrichtung
DE69427414D1 (de)	2001-07-12	Bilderzeugungsgerät
DE69413110D1 (de)	1998-10-15	Bilderzeugungsgerät
DE69426810D1 (de)	2001-04-12	Bildaufnahmevorrichtung
DE69619002D1 (de)	2002-03-21	Bildkodierungs-/-dekodierungsvorrichtung
DE69430288D1 (de)	2002-05-08	Bildaufnahmegerät
DK0585852T3 (da)	2001-05-07	Billedoverføringsindretning
DE69420471D1 (de)	1999-10-14	Bilderzeugungsgerät
DE69433374T2 (de)	2004-10-07	Bildaufnahmegerät
DE69410412D1 (de)	1998-06-25	Flüssigtoner-Bilderzeugungsvorrichtung
DE69210479D1 (de)	1996-06-13	Elektrophotographisches Bilderzeugungsgerät
DE69532595D1 (de)	2004-04-01	Elektrophotographisches Bilderzeugungsgerät
DE69409468D1 (de)	1998-05-14	Bilderzeugungsgerät
DE69516223D1 (de)	2000-05-18	Elektrostatografische Bildaufzeichnungsanordnung
DE69315789D1 (de)	1998-01-29	Bildlesevorrichtung
DE69424378D1 (de)	2000-06-15	Bildaufnahmevorrichtung
DE69427779D1 (de)	2001-08-23	Bilderzeugungsgerät
DE69317884D1 (de)	1998-05-14	Bildaufnahmevorrichtung
DE69413147D1 (de)	1998-10-15	Bilderzeugungsgerät
DE69423259D1 (de)	2000-04-13	Bildaufnahmevorrichtung
FI933834A (sv)	1995-03-02	Polsko till en magnetografisk avbildningsapparat
DE69522516D1 (de)	2001-10-11	Elektrofotografisches Bilderzeugungsgerät