ATE484757T1 - Transseptale nadelantenne für ein mr- bildgebungsgerät - Google Patents

Transseptale nadelantenne für ein mr- bildgebungsgerät

Info

Publication number
ATE484757T1
ATE484757T1 AT01910403T AT01910403T ATE484757T1 AT E484757 T1 ATE484757 T1 AT E484757T1 AT 01910403 T AT01910403 T AT 01910403T AT 01910403 T AT01910403 T AT 01910403T AT E484757 T1 ATE484757 T1 AT E484757T1
Authority
AT
Austria
Prior art keywords
mri
imaging device
transseptal
transseptal needle
needle antenna
Prior art date
Application number
AT01910403T
Other languages
English (en)
Inventor
Albert Lardo
Elliot Mcveigh
Henry Halperin
Original Assignee
Surgivision 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 US09/536,090 external-priority patent/US6675033B1/en
Application filed by Surgivision Inc filed Critical Surgivision Inc
Application granted granted Critical
Publication of ATE484757T1 publication Critical patent/ATE484757T1/de

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
    • 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
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
    • G01R33/287—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
    • 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
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • G01R33/34053—Solenoid coils; Toroidal coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
AT01910403T 2000-02-01 2001-02-01 Transseptale nadelantenne für ein mr- bildgebungsgerät ATE484757T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17893300P 2000-02-01 2000-02-01
US09/536,090 US6675033B1 (en) 1999-04-15 2000-03-24 Magnetic resonance imaging guidewire probe
PCT/US2001/003346 WO2001056469A2 (en) 2000-02-01 2001-02-01 Magnetic resonance imaging transseptal needle antenna

Publications (1)

Publication Number Publication Date
ATE484757T1 true ATE484757T1 (de) 2010-10-15

Family

ID=26874826

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01910403T ATE484757T1 (de) 2000-02-01 2001-02-01 Transseptale nadelantenne für ein mr- bildgebungsgerät

Country Status (7)

Country Link
US (2) US6606513B2 (de)
EP (1) EP1267713B1 (de)
AT (1) ATE484757T1 (de)
AU (1) AU2001238012A1 (de)
CA (1) CA2398967A1 (de)
DE (1) DE60143258D1 (de)
WO (1) WO2001056469A2 (de)

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