IN2014CN03727A - - Google Patents

Info

Publication number
IN2014CN03727A
IN2014CN03727A IN3727CHN2014A IN2014CN03727A IN 2014CN03727 A IN2014CN03727 A IN 2014CN03727A IN 3727CHN2014 A IN3727CHN2014 A IN 3727CHN2014A IN 2014CN03727 A IN2014CN03727 A IN 2014CN03727A
Authority
IN
India
Prior art keywords
instrument
conductor
examination
imaging
electrically conductive
Prior art date
Application number
Inventor
Steffen Weiss
Oliver Lips
Bernd David
Original Assignee
Koninkl Philips Nv
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 Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN03727A publication Critical patent/IN2014CN03727A/en

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
    • G01R33/288—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

Landscapes

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

Abstract

An RF safe interventional or a non interventional instrument is disclosed for use during an MR imaging or MR examination of an examination object (A) which instrument is made of or comprises at least one longitudinal or elongated electrically conductive element (1 3) especially in the form of a conductor or wire or line for feeding electrical signals or in the form of the instrument itself or a component or a part thereof which is not provided for feeding electrical signals but nevertheless electrically conductive wherein all such elements are subject to RF common mode currents which are induced in the element when the instrument or element is exposed to an RF/MR excitation field generated during MR imaging or MR examination by means of an MR imaging apparatus. The instrument is made RF safe by increasing the energy loss of an oscillator which is represented by the conductor (1 3) by means of a damping element (4; 6) in order to prevent or limit RF heating of the examination object (A) at or surrounding the conductor (1 3).
IN3727CHN2014 2011-11-22 2012-11-22 IN2014CN03727A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161562477P 2011-11-22 2011-11-22
EP11190077.5A EP2597481A1 (en) 2011-11-22 2011-11-22 RF-safe interventional or non-interventional instrument for use in an MRI apparatus
PCT/IB2012/056621 WO2013076677A1 (en) 2011-11-22 2012-11-22 Rf-safe interventional or non-interventional instrument for use in an mri apparatus

Publications (1)

Publication Number Publication Date
IN2014CN03727A true IN2014CN03727A (en) 2015-07-03

Family

ID=45065741

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3727CHN2014 IN2014CN03727A (en) 2011-11-22 2012-11-22

Country Status (8)

Country Link
US (1) US9835697B2 (en)
EP (2) EP2597481A1 (en)
JP (1) JP6170500B2 (en)
CN (1) CN103959081B (en)
BR (1) BR112014012051A2 (en)
IN (1) IN2014CN03727A (en)
RU (1) RU2014125243A (en)
WO (1) WO2013076677A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3158960B1 (en) * 2015-10-22 2023-10-18 Inomed Medizintechnik GmbH Electrode with a throttle for preventing burns induced by hf leak currents
DE102016206398A1 (en) * 2016-04-15 2017-10-19 Siemens Healthcare Gmbh Operation of a magnetic resonance device taking into account implant carriers
CN108469543B (en) * 2018-03-30 2019-03-05 清华大学 Induced potential measurement method and system

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* Cited by examiner, † Cited by third party
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US4951672A (en) * 1985-07-02 1990-08-28 General Electric Company Controlled impedance monitoring lead wires
US5138287A (en) * 1990-05-11 1992-08-11 Hewlett-Packard Company High frequency common mode choke
JP2004514485A (en) * 2000-11-24 2004-05-20 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Insertion device with separated electrical connection conductor
US6559650B2 (en) * 2001-06-05 2003-05-06 Eni Technology, Inc. RF power probe head with a thermally conductive bushing
US6496714B1 (en) 2001-07-20 2002-12-17 Koninklijke Philips Electronics N.V. RF-safe invasive device
DE102004026713B3 (en) * 2004-05-28 2006-02-23 Siemens Ag Antenna amplifier for a magnetic resonance antenna and magnetic resonance antenna with an antenna amplifier
CN101829400B (en) 2004-08-09 2011-12-14 约翰斯·霍普金斯大学 Implantable MRI compatible stimulation leads and antennas and related systems and methods
US7777588B2 (en) * 2004-12-20 2010-08-17 Koninklijke Philips Electronics N.V. Transmission path for use in RF fields
US8055351B2 (en) 2005-10-21 2011-11-08 Boston Scientific Neuromodulation Corporation MRI-safe high impedance lead systems
AU2006320611A1 (en) 2005-11-29 2007-06-07 Surgi-Vision, Inc. MRI-guided localization and/or lead placement systems, related methods, devices and computer program products
EP2067501A3 (en) * 2006-04-07 2011-12-21 Medtronic, Inc. Resonance circuit for implantable devices and leads
US7714581B2 (en) * 2006-04-19 2010-05-11 Wisconsin Alumni Research Foundation RF coil assembly for magnetic resonance imaging and spectroscopy systems
US8339256B2 (en) * 2006-08-02 2012-12-25 Koninklijke Philips Electronics N.V. Radiofrequency safety of switchable segmented transmission lines
US7999549B2 (en) * 2006-08-02 2011-08-16 Koninklijke Philips Electronics N.V. Transmission path for use in RF fields providing reduced RF heating
JP5264732B2 (en) 2006-09-11 2013-08-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Catheter and medical assembly
WO2008078294A1 (en) 2006-12-22 2008-07-03 Philips Intellectual Property & Standards Gmbh Transmission line for use in magnetic resonance system
US7956704B1 (en) * 2007-02-28 2011-06-07 Pmc-Sierra Us, Inc. Loaded parallel stub common mode filter for differential lines carrying high rate digital signals
EP2162755B1 (en) 2007-06-29 2010-12-08 Koninklijke Philips Electronics N.V. Transmission cable for use in radio-frequency magnetic or electrical fields
GB2481149B (en) 2009-01-27 2013-11-06 Koninkl Philips Electronics Nv RF safe transformer-coupled transmission line for MRI with reduced artifacts
US8319496B2 (en) 2009-04-01 2012-11-27 Yigitcan Eryaman Magnetic resonance method and apparatus for reducing RF heating in the patient
WO2011053199A1 (en) * 2009-10-30 2011-05-05 St. Jude Medical Ab A medical implantable lead

Also Published As

Publication number Publication date
BR112014012051A2 (en) 2017-05-30
RU2014125243A (en) 2015-12-27
JP6170500B2 (en) 2017-07-26
JP2015504341A (en) 2015-02-12
CN103959081A (en) 2014-07-30
CN103959081B (en) 2018-03-30
US20140303485A1 (en) 2014-10-09
EP2783230B1 (en) 2020-09-09
WO2013076677A1 (en) 2013-05-30
US9835697B2 (en) 2017-12-05
EP2597481A1 (en) 2013-05-29
EP2783230A1 (en) 2014-10-01

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