WO2004061460A3 - Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes - Google Patents

Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes Download PDF

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Publication number
WO2004061460A3
WO2004061460A3 PCT/US2003/041329 US0341329W WO2004061460A3 WO 2004061460 A3 WO2004061460 A3 WO 2004061460A3 US 0341329 W US0341329 W US 0341329W WO 2004061460 A3 WO2004061460 A3 WO 2004061460A3
Authority
WO
WIPO (PCT)
Prior art keywords
marker
magnetic resonance
wireless signal
signal transmitter
imaging
Prior art date
Application number
PCT/US2003/041329
Other languages
French (fr)
Other versions
WO2004061460A2 (en
Inventor
Steven C Dimmer
Eric Hadford
Original Assignee
Calypso Med Technologies Inc
Steven C Dimmer
Eric Hadford
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 Calypso Med Technologies Inc, Steven C Dimmer, Eric Hadford filed Critical Calypso Med Technologies Inc
Priority to CA2512208A priority Critical patent/CA2512208C/en
Priority to JP2004565731A priority patent/JP4616010B2/en
Priority to AU2003300378A priority patent/AU2003300378A1/en
Priority to EP03814967.0A priority patent/EP1579224B1/en
Publication of WO2004061460A2 publication Critical patent/WO2004061460A2/en
Publication of WO2004061460A3 publication Critical patent/WO2004061460A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A61B5/062—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using magnetic field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/397—Markers, e.g. radio-opaque or breast lesions markers electromagnetic other than visible, e.g. microwave
    • A61B2090/3975—Markers, e.g. radio-opaque or breast lesions markers electromagnetic other than visible, e.g. microwave active
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/43—Electric condenser making
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Human Computer Interaction (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

A wireless (e.g., leadless) marker for localizing the position of a target within a patient. In one embodiment, the marker includes a casing, a resonating circuit, and a ferromagnetic element. The ferromagnetic element can have a volume such that when the marker is in an imaging magnetic field having a field strength of 1.5 T and a gradient of 3 T/m, then the force exerted on the marker by the imaging magnetic field is not greater than gravitational force exerted on the marker. In an alternative embodiment, the ferromagnetic element need not have such a volume, but the marker further includes an imaging element incorporated with the casing and/or the magnetic transponder (e.g., resonating circuit). The imaging element produces a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid of the transponder.
PCT/US2003/041329 2002-12-30 2003-12-24 Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes WO2004061460A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2512208A CA2512208C (en) 2002-12-30 2003-12-24 Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes
JP2004565731A JP4616010B2 (en) 2002-12-30 2003-12-24 Implantable marker having a radio signal transmitter adapted for use in a magnetic resonance imaging apparatus and / or suitable for use in a radiation imaging process
AU2003300378A AU2003300378A1 (en) 2002-12-30 2003-12-24 Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes
EP03814967.0A EP1579224B1 (en) 2002-12-30 2003-12-24 Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/334,698 2002-12-30
US10/334,698 US7289839B2 (en) 2002-12-30 2002-12-30 Implantable marker with a leadless signal transmitter compatible for use in magnetic resonance devices

Publications (2)

Publication Number Publication Date
WO2004061460A2 WO2004061460A2 (en) 2004-07-22
WO2004061460A3 true WO2004061460A3 (en) 2005-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/041329 WO2004061460A2 (en) 2002-12-30 2003-12-24 Implantable marker with a wireless signal transmitter compatible for use in magnetic resonance imaging devices and/or suitable for use in radiation imaging processes

Country Status (6)

Country Link
US (3) US7289839B2 (en)
EP (1) EP1579224B1 (en)
JP (1) JP4616010B2 (en)
AU (1) AU2003300378A1 (en)
CA (1) CA2512208C (en)
WO (1) WO2004061460A2 (en)

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US7289839B2 (en) 2007-10-30
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US7778687B2 (en) 2010-08-17
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CA2512208A1 (en) 2004-07-22
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