WO2004017811A3 - High-resolution magnetoencephalography system and method - Google Patents

High-resolution magnetoencephalography system and method Download PDF

Info

Publication number
WO2004017811A3
WO2004017811A3 PCT/US2003/020523 US0320523W WO2004017811A3 WO 2004017811 A3 WO2004017811 A3 WO 2004017811A3 US 0320523 W US0320523 W US 0320523W WO 2004017811 A3 WO2004017811 A3 WO 2004017811A3
Authority
WO
WIPO (PCT)
Prior art keywords
dewar
resolution
magnetoencephalography
head
headrest assembly
Prior art date
Application number
PCT/US2003/020523
Other languages
French (fr)
Other versions
WO2004017811A2 (en
Inventor
Anthony P Ewing
Sheldon J Gott
Anthony D Mascarenas
Yoshio Okada
Douglas N Paulson
Original Assignee
Tristan Technologies Inc
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
Priority claimed from US10/228,694 external-priority patent/US6784663B2/en
Priority claimed from US10/608,725 external-priority patent/US7130675B2/en
Priority claimed from US10/609,259 external-priority patent/US7197352B2/en
Application filed by Tristan Technologies Inc filed Critical Tristan Technologies Inc
Priority to EP03792953A priority Critical patent/EP1538978A4/en
Priority to AU2003263757A priority patent/AU2003263757A1/en
Publication of WO2004017811A2 publication Critical patent/WO2004017811A2/en
Publication of WO2004017811A3 publication Critical patent/WO2004017811A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/035—Measuring direction or magnitude of magnetic fields or magnetic flux using superconductive devices
    • G01R33/0354—SQUIDS
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • A61B5/245—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals

Abstract

According to certain embodiments of the present invention, there is provided a magnetoencephalography and method employing a portable cart having a SQUID dewar mounted in an inverted manner thereon, and having a headrest assembly mounted on the cart for supporting the head of a patient and forming a portion of the dewar. The headrest assembly includes an array of magnetic sensors of the SQUID dewar for responding to electrical activity of the brain of the head.
PCT/US2003/020523 2002-08-26 2003-06-27 High-resolution magnetoencephalography system and method WO2004017811A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03792953A EP1538978A4 (en) 2002-08-26 2003-06-27 High-resolution magnetoencephalography system and method
AU2003263757A AU2003263757A1 (en) 2002-08-26 2003-06-27 High-resolution magnetoencephalography system and method

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US10/228,694 2002-08-26
US10/228,694 US6784663B2 (en) 2001-08-27 2002-08-26 Self-adjusting assembly and method for close tolerance spacing
US10/608,725 2003-06-26
US10/608,725 US7130675B2 (en) 2002-06-28 2003-06-26 High-resolution magnetoencephalography system and method
US10/609,259 2003-06-26
US10/609,259 US7197352B2 (en) 2002-08-26 2003-06-26 High-resolution magnetoencephalography system, components and method

Publications (2)

Publication Number Publication Date
WO2004017811A2 WO2004017811A2 (en) 2004-03-04
WO2004017811A3 true WO2004017811A3 (en) 2005-04-14

Family

ID=31950510

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/020523 WO2004017811A2 (en) 2002-08-26 2003-06-27 High-resolution magnetoencephalography system and method

Country Status (3)

Country Link
EP (1) EP1538978A4 (en)
AU (1) AU2003263757A1 (en)
WO (1) WO2004017811A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951674A (en) * 1989-03-20 1990-08-28 Zanakis Michael F Biomagnetic analytical system using fiber-optic magnetic sensors
US4996479A (en) * 1988-09-16 1991-02-26 Siemens Aktiengesellschaft Magnetometer device with a Dewar vessel for measuring weak magnetic fields
US5036279A (en) * 1987-05-11 1991-07-30 Datalight Limited Portable NMR and NQR spectrometers
US5166614A (en) * 1989-05-25 1992-11-24 Hitachi, Ltd. Integrated-type squid magnetometer having a magnetic shield, and a multichannel squid magnetometer using the same
US5193348A (en) * 1990-06-25 1993-03-16 Siemens Aktiengesellschaft Device for cooling a squid measuring instrument
US5442289A (en) * 1989-07-31 1995-08-15 Biomagnetic Technologies, Inc. Biomagnetometer having flexible sensor
US5475306A (en) * 1992-08-22 1995-12-12 U.S. Philips Corporation Squid magnetivity having a totally enclosing electromagnetic shield with a predeterminded sheet resistance for low noise

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194695B2 (en) 1995-12-14 2001-07-30 学校法人金沢工業大学 Magnetic measuring device, method of assembling and repairing the same, and diagnostic device for magnetic measurement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5036279A (en) * 1987-05-11 1991-07-30 Datalight Limited Portable NMR and NQR spectrometers
US4996479A (en) * 1988-09-16 1991-02-26 Siemens Aktiengesellschaft Magnetometer device with a Dewar vessel for measuring weak magnetic fields
US4951674A (en) * 1989-03-20 1990-08-28 Zanakis Michael F Biomagnetic analytical system using fiber-optic magnetic sensors
US5166614A (en) * 1989-05-25 1992-11-24 Hitachi, Ltd. Integrated-type squid magnetometer having a magnetic shield, and a multichannel squid magnetometer using the same
US5442289A (en) * 1989-07-31 1995-08-15 Biomagnetic Technologies, Inc. Biomagnetometer having flexible sensor
US5193348A (en) * 1990-06-25 1993-03-16 Siemens Aktiengesellschaft Device for cooling a squid measuring instrument
US5475306A (en) * 1992-08-22 1995-12-12 U.S. Philips Corporation Squid magnetivity having a totally enclosing electromagnetic shield with a predeterminded sheet resistance for low noise

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1538978A4 *

Also Published As

Publication number Publication date
EP1538978A2 (en) 2005-06-15
WO2004017811A2 (en) 2004-03-04
AU2003263757A8 (en) 2004-03-11
AU2003263757A1 (en) 2004-03-11
EP1538978A4 (en) 2005-11-23

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