WO2003063946A3 - Apparatus and method for shunting induced currents in an electrical lead - Google Patents

Apparatus and method for shunting induced currents in an electrical lead Download PDF

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Publication number
WO2003063946A3
WO2003063946A3 PCT/US2003/001892 US0301892W WO03063946A3 WO 2003063946 A3 WO2003063946 A3 WO 2003063946A3 US 0301892 W US0301892 W US 0301892W WO 03063946 A3 WO03063946 A3 WO 03063946A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrical lead
end portion
electrode
elongate body
induced currents
Prior art date
Application number
PCT/US2003/001892
Other languages
French (fr)
Other versions
WO2003063946A2 (en
WO2003063946A8 (en
Inventor
Volkert A Zeijlemaker
Ron Kalin
Gregory A Hrdlicka
Yong Kyun Cho
James D Reinke
Laurie D Foerster
Original Assignee
Medtronic 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
Application filed by Medtronic Inc filed Critical Medtronic Inc
Publication of WO2003063946A2 publication Critical patent/WO2003063946A2/en
Publication of WO2003063946A3 publication Critical patent/WO2003063946A3/en
Publication of WO2003063946A8 publication Critical patent/WO2003063946A8/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating
    • A61N1/086—Magnetic resonance imaging [MRI] compatible leads
    • 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
    • A61N1/37—Monitoring; Protecting
    • A61N1/3718—Monitoring of or protection against external electromagnetic fields or currents

Abstract

An electrical lead includes an elongate body having a proximal end portion and a distal end portion, a first electrode disposed adjacent and joined to the distal end portion of the elongate body. Current flow within the first electrode is limited when a predetermined condition occurs, such as the generation of an electromagnetic field having a predetermined frequency range. The medical electrical lead may further comprise one or more second electrodes disposed adjacent the first electrode and joined to the elongate body to shunt current to body tissue when the predetermined condition occurs.
PCT/US2003/001892 2002-01-29 2003-01-22 Apparatus and method for shunting induced currents in an electrical lead WO2003063946A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/059,512 2002-01-29
US10/059,512 US6944489B2 (en) 2001-10-31 2002-01-29 Method and apparatus for shunting induced currents in an electrical lead

Publications (3)

Publication Number Publication Date
WO2003063946A2 WO2003063946A2 (en) 2003-08-07
WO2003063946A3 true WO2003063946A3 (en) 2004-03-25
WO2003063946A8 WO2003063946A8 (en) 2005-04-28

Family

ID=27658258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/001892 WO2003063946A2 (en) 2002-01-29 2003-01-22 Apparatus and method for shunting induced currents in an electrical lead

Country Status (2)

Country Link
US (1) US6944489B2 (en)
WO (1) WO2003063946A2 (en)

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US20030083726A1 (en) 2003-05-01

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