DE69317943T2 - Diagnostik-Anlage mittels magnetischer Kernresonanz - Google Patents
Diagnostik-Anlage mittels magnetischer KernresonanzInfo
- Publication number
- DE69317943T2 DE69317943T2 DE69317943T DE69317943T DE69317943T2 DE 69317943 T2 DE69317943 T2 DE 69317943T2 DE 69317943 T DE69317943 T DE 69317943T DE 69317943 T DE69317943 T DE 69317943T DE 69317943 T2 DE69317943 T2 DE 69317943T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic resonance
- diagnostic system
- diagnostic
- resonance
- 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.)
- Expired - Fee Related
Links
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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
-
- 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
- G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
-
- 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
- G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
-
- 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
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
- G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4167627A JPH067319A (ja) | 1992-06-25 | 1992-06-25 | Mr内視鏡装置 |
JP27185092 | 1992-10-09 | ||
JP5028088A JPH06237918A (ja) | 1993-02-17 | 1993-02-17 | 核磁気共鳴映像装置の周辺機器 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69317943D1 DE69317943D1 (de) | 1998-05-20 |
DE69317943T2 true DE69317943T2 (de) | 1998-08-06 |
Family
ID=27286075
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69317943T Expired - Fee Related DE69317943T2 (de) | 1992-06-25 | 1993-06-24 | Diagnostik-Anlage mittels magnetischer Kernresonanz |
DE69332985T Expired - Fee Related DE69332985T2 (de) | 1992-06-25 | 1993-06-24 | Diagnostik-Anlage |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69332985T Expired - Fee Related DE69332985T2 (de) | 1992-06-25 | 1993-06-24 | Diagnostik-Anlage |
Country Status (3)
Country | Link |
---|---|
US (1) | US5402788A (de) |
EP (2) | EP0766093B1 (de) |
DE (2) | DE69317943T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07303625A (ja) * | 1994-03-18 | 1995-11-21 | Olympus Optical Co Ltd | 磁気共鳴断層撮影装置用器具 |
JP3544557B2 (ja) * | 1994-04-08 | 2004-07-21 | オリンパス株式会社 | 画像ファイル装置 |
US5607441A (en) * | 1995-03-24 | 1997-03-04 | Ethicon Endo-Surgery, Inc. | Surgical dissector |
AU7594798A (en) * | 1997-05-21 | 1998-12-11 | Cardiac M.R.I. Inc. | Cardiac mri with an internal receiving coil and an external receiving coil |
JPH11275460A (ja) * | 1998-03-24 | 1999-10-08 | Mitsubishi Electric Corp | 信号出力回路、信号入力回路、信号入出力回路 |
US7286868B2 (en) * | 2001-06-15 | 2007-10-23 | Biosense Inc. | Medical device with position sensor having accuracy at high temperatures |
US6496714B1 (en) * | 2001-07-20 | 2002-12-17 | Koninklijke Philips Electronics N.V. | RF-safe invasive device |
CA2674222A1 (en) * | 2006-12-29 | 2008-07-10 | The Johns Hopkins University | Methods, systems and devices for local endoscopic magnetic resonance |
CA2678487A1 (en) * | 2007-02-26 | 2008-09-04 | Machida Endoscope Co., Ltd. | Flexible endoscope suitable for mri |
US9259582B2 (en) | 2011-04-29 | 2016-02-16 | Cyberonics, Inc. | Slot antenna for an implantable device |
US9240630B2 (en) | 2011-04-29 | 2016-01-19 | Cyberonics, Inc. | Antenna shield for an implantable medical device |
US9089712B2 (en) | 2011-04-29 | 2015-07-28 | Cyberonics, Inc. | Implantable medical device without antenna feedthrough |
US9265958B2 (en) | 2011-04-29 | 2016-02-23 | Cyberonics, Inc. | Implantable medical device antenna |
WO2013035033A1 (en) * | 2011-09-07 | 2013-03-14 | Koninklijke Philips Electronics N.V. | Dynamic modification of rf array coil/antenna impedance |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4572198A (en) * | 1984-06-18 | 1986-02-25 | Varian Associates, Inc. | Catheter for use with NMR imaging systems |
DE3429386A1 (de) * | 1984-08-09 | 1986-02-27 | Siemens AG, 1000 Berlin und 8000 München | Kernspintomographiegeraet |
US4672972A (en) * | 1984-08-13 | 1987-06-16 | Berke Howard R | Solid state NMR probe |
US4950993A (en) * | 1985-11-29 | 1990-08-21 | Thomson-Cgr | Device and method for adjusting a radiofrequency antenna of a nuclear magnetic resonance apparatus |
FR2590993B1 (fr) * | 1985-11-29 | 1988-04-29 | Thomson Cgr | Dispositif et procede de reglage d'une antenne radiofrequence d'un appareil de resonance magnetique nucleaire |
US4737712A (en) * | 1986-12-31 | 1988-04-12 | General Electric Company | Isolated power transfer and patient monitoring system with interference rejection useful with NMR apparatus |
US5050607A (en) * | 1987-03-04 | 1991-09-24 | Huntington Medical Research Institutes | High resolution magnetic resonance imaging of body cavities |
US5035231A (en) * | 1987-04-27 | 1991-07-30 | Olympus Optical Co., Ltd. | Endoscope apparatus |
US4960106A (en) * | 1987-04-28 | 1990-10-02 | Olympus Optical Co., Ltd. | Endoscope apparatus |
US5170789A (en) * | 1987-06-17 | 1992-12-15 | Perinchery Narayan | Insertable NMR coil probe |
US5348010A (en) * | 1989-02-24 | 1994-09-20 | Medrea, Inc., Pennsylvania Corp., Pa. | Intracavity probe and interface device for MRI imaging and spectroscopy |
DE385367T1 (de) * | 1989-02-27 | 1995-06-29 | Medrad, Inc., Pittsburgh, Pa. | Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. |
JPH035174A (ja) * | 1989-06-02 | 1991-01-10 | Fujitsu Ltd | 水平プリンタ |
US4951009A (en) * | 1989-08-11 | 1990-08-21 | Applied Materials, Inc. | Tuning method and control system for automatic matching network |
JP2921694B2 (ja) * | 1990-01-17 | 1999-07-19 | オリンパス光学工業株式会社 | 磁気共鳴信号検出装置 |
JP2566032B2 (ja) * | 1990-02-06 | 1996-12-25 | オリンパス光学工業株式会社 | 内視鏡 |
JPH0473051A (ja) * | 1990-07-16 | 1992-03-09 | Olympus Optical Co Ltd | Nmr用検出装置 |
JPH04129533A (ja) * | 1990-09-19 | 1992-04-30 | Toshiba Corp | Mri装置のプローブ |
US5143068A (en) * | 1990-11-26 | 1992-09-01 | Resonex, Inc. | Flexible and curved radio frequency (RF) coil for the human shoulder for magnetic resonance imaging apparatus |
US5188111A (en) * | 1991-01-18 | 1993-02-23 | Catheter Research, Inc. | Device for seeking an area of interest within a body |
US5265610A (en) * | 1991-09-03 | 1993-11-30 | General Electric Company | Multi-planar X-ray fluoroscopy system using radiofrequency fields |
US5307814A (en) * | 1991-09-17 | 1994-05-03 | Medrad, Inc. | Externally moveable intracavity probe for MRI imaging and spectroscopy |
US5271400A (en) * | 1992-04-01 | 1993-12-21 | General Electric Company | Tracking system to monitor the position and orientation of a device using magnetic resonance detection of a sample contained within the device |
-
1993
- 1993-06-21 US US08/080,224 patent/US5402788A/en not_active Expired - Fee Related
- 1993-06-24 EP EP96118785A patent/EP0766093B1/de not_active Expired - Lifetime
- 1993-06-24 EP EP93110132A patent/EP0576016B1/de not_active Expired - Lifetime
- 1993-06-24 DE DE69317943T patent/DE69317943T2/de not_active Expired - Fee Related
- 1993-06-24 DE DE69332985T patent/DE69332985T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69317943D1 (de) | 1998-05-20 |
DE69332985T2 (de) | 2004-02-19 |
US5402788A (en) | 1995-04-04 |
DE69332985D1 (de) | 2003-06-18 |
EP0576016B1 (de) | 1998-04-15 |
EP0576016A1 (de) | 1993-12-29 |
EP0766093A1 (de) | 1997-04-02 |
EP0766093B1 (de) | 2003-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |