SE9403188D0 - Magnetfältsdetektor vid ett medicinskt implantat - Google Patents

Magnetfältsdetektor vid ett medicinskt implantat

Info

Publication number
SE9403188D0
SE9403188D0 SE9403188A SE9403188A SE9403188D0 SE 9403188 D0 SE9403188 D0 SE 9403188D0 SE 9403188 A SE9403188 A SE 9403188A SE 9403188 A SE9403188 A SE 9403188A SE 9403188 D0 SE9403188 D0 SE 9403188D0
Authority
SE
Sweden
Prior art keywords
capacitance
magnetic field
sensor
medical implant
signal
Prior art date
Application number
SE9403188A
Other languages
English (en)
Inventor
Goeran Budgifvars
Inga Sundbom
Original Assignee
Siemens Elema Ab
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 Siemens Elema Ab filed Critical Siemens Elema Ab
Priority to SE9403188A priority Critical patent/SE9403188D0/sv
Publication of SE9403188D0 publication Critical patent/SE9403188D0/sv
Priority to EP95850157A priority patent/EP0702981B1/en
Priority to DE69526474T priority patent/DE69526474T2/de
Priority to US08/531,274 priority patent/US5709225A/en
Priority to JP7244888A priority patent/JPH08103506A/ja

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36542—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure controlled by body motion, e.g. acceleration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/903—Radio telemetry

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Cardiology (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biophysics (AREA)
  • Electromagnetism (AREA)
  • Physiology (AREA)
  • Biomedical Technology (AREA)
  • Geophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electrotherapy Devices (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
SE9403188A 1994-09-22 1994-09-22 Magnetfältsdetektor vid ett medicinskt implantat SE9403188D0 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9403188A SE9403188D0 (sv) 1994-09-22 1994-09-22 Magnetfältsdetektor vid ett medicinskt implantat
EP95850157A EP0702981B1 (en) 1994-09-22 1995-09-08 Magnetic field detector in a medical implant
DE69526474T DE69526474T2 (de) 1994-09-22 1995-09-08 Magnetfelddetektor in einem medizinischen Implantat
US08/531,274 US5709225A (en) 1994-09-22 1995-09-20 Combined magnetic field detector and activity detector employing a capacitive sensor, for a medical implant
JP7244888A JPH08103506A (ja) 1994-09-22 1995-09-22 磁界検出器付き医療用インプラント

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9403188A SE9403188D0 (sv) 1994-09-22 1994-09-22 Magnetfältsdetektor vid ett medicinskt implantat

Publications (1)

Publication Number Publication Date
SE9403188D0 true SE9403188D0 (sv) 1994-09-22

Family

ID=20395335

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403188A SE9403188D0 (sv) 1994-09-22 1994-09-22 Magnetfältsdetektor vid ett medicinskt implantat

Country Status (5)

Country Link
US (1) US5709225A (sv)
EP (1) EP0702981B1 (sv)
JP (1) JPH08103506A (sv)
DE (1) DE69526474T2 (sv)
SE (1) SE9403188D0 (sv)

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US20020115925A1 (en) * 1996-06-25 2002-08-22 Avrin William F. Ferromagnetic foreign body detection utilizing eye movement
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US6965792B2 (en) * 1996-06-25 2005-11-15 Mednovus, Inc. Susceptometers for foreign body detection
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US5994880A (en) * 1998-04-07 1999-11-30 Angeion Corporation Giant magnetroresistive ratio sensing system
US6201980B1 (en) 1998-10-05 2001-03-13 The Regents Of The University Of California Implantable medical sensor system
US6206835B1 (en) 1999-03-24 2001-03-27 The B. F. Goodrich Company Remotely interrogated diagnostic implant device with electrically passive sensor
US6170488B1 (en) 1999-03-24 2001-01-09 The B. F. Goodrich Company Acoustic-based remotely interrogated diagnostic implant device and system
US6092530A (en) 1999-03-24 2000-07-25 The B.F. Goodrich Company Remotely interrogated implant device with sensor for detecting accretion of biological matter
DE19934823C2 (de) * 1999-07-24 2001-07-12 Mtu Aero Engines Gmbh Nachweisvorrichtung zum Nachweis von lokalen Magnetfeldern
CA2382846C (en) 1999-09-17 2005-12-06 Endoluminal Therapeutics, Inc. Sensing, interrogating, storing, telemetering and responding medical implants
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US6644321B1 (en) * 1999-10-29 2003-11-11 Medtronic, Inc. Tactile feedback for indicating validity of communication link with an implantable medical device
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US20030216632A1 (en) * 2001-10-29 2003-11-20 Mednovus, Inc. Ferromagnetic sensing method and apparatus
US20030083588A1 (en) * 2001-10-29 2003-05-01 Mcclure Richard J. Pre-screening utilizing magnetic resonance imaging field
AU2002360326A1 (en) * 2001-10-31 2003-05-12 Biophan Technologies, Inc. Hermetic component housing for photonic catheter
US6711440B2 (en) 2002-04-11 2004-03-23 Biophan Technologies, Inc. MRI-compatible medical device with passive generation of optical sensing signals
US6725092B2 (en) 2002-04-25 2004-04-20 Biophan Technologies, Inc. Electromagnetic radiation immune medical assist device adapter
US6925322B2 (en) * 2002-07-25 2005-08-02 Biophan Technologies, Inc. Optical MRI catheter system
US20040055610A1 (en) * 2002-09-25 2004-03-25 Peter Forsell Detection of implanted wireless energy receiving device
US20040064030A1 (en) * 2002-10-01 2004-04-01 Peter Forsell Detection of implanted injection port
US20050149002A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Markers for visualizing interventional medical devices
US20050149169A1 (en) * 2003-04-08 2005-07-07 Xingwu Wang Implantable medical device
US7242981B2 (en) 2003-06-30 2007-07-10 Codman Neuro Sciences Sárl System and method for controlling an implantable medical device subject to magnetic field or radio frequency exposure
US6883241B2 (en) * 2003-07-31 2005-04-26 Medtronic, Inc. Compass-based indicator with magnetic shielding
US7561915B1 (en) 2004-12-17 2009-07-14 Cardiac Pacemakers, Inc. MRI system having implantable device safety features
US8014867B2 (en) 2004-12-17 2011-09-06 Cardiac Pacemakers, Inc. MRI operation modes for implantable medical devices
US20080136408A1 (en) * 2004-12-20 2008-06-12 Displaycom Track Technologies Gmbh Assembly and Method For Locating Magnetic Objects or Objects That Can Be Magnetized
TWI258123B (en) * 2005-02-03 2006-07-11 Lite On It Corp Apparatus for positioning a clamper of a disc driver
US20060271199A1 (en) * 2005-05-20 2006-11-30 Johnson Lanny L Navigational markers in implants
WO2008022358A1 (en) * 2006-08-13 2008-02-21 Teqnovo (Pty) Ltd Magnetic field detector
US8032228B2 (en) 2007-12-06 2011-10-04 Cardiac Pacemakers, Inc. Method and apparatus for disconnecting the tip electrode during MRI
US8086321B2 (en) 2007-12-06 2011-12-27 Cardiac Pacemakers, Inc. Selectively connecting the tip electrode during therapy for MRI shielding
US8311637B2 (en) 2008-02-11 2012-11-13 Cardiac Pacemakers, Inc. Magnetic core flux canceling of ferrites in MRI
US8160717B2 (en) 2008-02-19 2012-04-17 Cardiac Pacemakers, Inc. Model reference identification and cancellation of magnetically-induced voltages in a gradient magnetic field
WO2010030390A1 (en) * 2008-09-15 2010-03-18 Leonid Grigorov Methods and devices having replaceable cartridge for programmable delivery of microdoses of liquid drugs and other fluids
US8571661B2 (en) 2008-10-02 2013-10-29 Cardiac Pacemakers, Inc. Implantable medical device responsive to MRI induced capture threshold changes
JP5389947B2 (ja) 2009-02-19 2014-01-15 カーディアック ペースメイカーズ， インコーポレイテッド Ｍｒｉ環境において不整脈治療を提供するためのシステム
US20100249576A1 (en) * 2009-03-27 2010-09-30 Warsaw Orthopedic, Inc., An Indiana Corporation Devices, systems, and methods of tracking anatomical features
EP2509682B1 (en) * 2009-12-08 2015-01-14 Cardiac Pacemakers, Inc. Implantable medical device with automatic tachycardia detection and control in mri environments
EP2338562A1 (de) * 2009-12-22 2011-06-29 BIOTRONIK CRM Patent AG MRT-Lorentz-Vibrator
US10391320B2 (en) 2011-01-28 2019-08-27 Medtronic, Inc. Techniques for detecting magnetic resonance imaging field
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US9981124B2 (en) 2012-04-26 2018-05-29 Medtronic, Inc. Devices and techniques for detecting magnetic resonance imaging field
JP2018502291A (ja) * 2014-12-12 2018-01-25 コリア リサーチ インスティチュート オブ スタンダーズ アンド サイエンス 磁場センサ及び磁場測定装置
EP3347725A2 (en) 2015-10-06 2018-07-18 The Charles Stark Draper Laboratory, Inc. Electric field detector system
EP3347728A2 (en) 2015-10-06 2018-07-18 The Charles Stark Draper Laboratory, Inc. Magnetic field detector system
US10589074B2 (en) 2016-06-30 2020-03-17 Integra Lifesciences Switzerland Sàrl Magneto-resistive sensor tool set for hydrocephalus valve
US10286196B2 (en) 2016-06-30 2019-05-14 Integra Lifesciences Switzerland Sàrl Device to control magnetic rotor of a programmable hydrocephalus valve
US10531805B2 (en) 2016-09-30 2020-01-14 The Charles Stark Draper Laboratory, Inc. Biophysical sensing systems and methods using non-contact electric field detectors
WO2018187307A1 (en) 2017-04-04 2018-10-11 The Charles Stark Draper Laboratory, Inc. Miniature electric field detector
WO2018187326A1 (en) * 2017-04-05 2018-10-11 The Charles Stark Draper Laboratory, Inc. Miniature magnetic field detector
US10888692B2 (en) 2017-09-19 2021-01-12 Integra Lifesciences Switzerland Sàrl Electronic toolset for use with multiple generations of implantable programmable valves with or without orientation functionality based on a fixed reference magnet
US10994108B2 (en) 2017-09-19 2021-05-04 Integra LifeSciences Switzerland Sárl Programmable drainage valve with fixed reference magnet for determining direction of flow operable with analog or digital compass toolsets
US10850081B2 (en) 2017-09-19 2020-12-01 Integra LifeSciences Switzerland Sáarl Implantable bodily fluid drainage valve with magnetic field resistance engagement confirmation
US10850080B2 (en) 2017-09-19 2020-12-01 Integra LifeSciences Switzerland Sárl Electronic toolset to locate, read, adjust, and confirm adjustment in an implantable bodily fluid drainage system without recalibrating following adjustment
US11525870B2 (en) 2017-10-05 2022-12-13 The Charles Stark Draper Laboratory, Inc. Electromagnetic gradiometers

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Also Published As

Publication number Publication date
US5709225A (en) 1998-01-20
DE69526474D1 (de) 2002-05-29
EP0702981A1 (en) 1996-03-27
JPH08103506A (ja) 1996-04-23
DE69526474T2 (de) 2002-12-19
EP0702981B1 (en) 2002-04-24

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