WO2008108901A8 - Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation - Google Patents

Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation Download PDF

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Publication number
WO2008108901A8
WO2008108901A8 PCT/US2007/089087 US2007089087W WO2008108901A8 WO 2008108901 A8 WO2008108901 A8 WO 2008108901A8 US 2007089087 W US2007089087 W US 2007089087W WO 2008108901 A8 WO2008108901 A8 WO 2008108901A8
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
psu
impedance
fluoroscopic
chronically
Prior art date
Application number
PCT/US2007/089087
Other languages
French (fr)
Other versions
WO2008108901A1 (en
Inventor
H. Toby Markowitz
Chad Giese
Steven WALDHAUSER
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
Priority to EP07870059A priority Critical patent/EP2136706A1/en
Priority to CN200780052606.8A priority patent/CN101711125B/en
Publication of WO2008108901A1 publication Critical patent/WO2008108901A1/en
Priority to US12/492,906 priority patent/US8135467B2/en
Publication of WO2008108901A8 publication Critical patent/WO2008108901A8/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
    • A61N1/057—Anchoring means; Means for fixing the head inside the heart
    • A61N1/0573—Anchoring means; Means for fixing the head inside the heart chacterised by means penetrating the heart tissue, e.g. helix needle or hook
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A61B2034/2046—Tracking techniques
    • A61B2034/2051—Electromagnetic tracking systems
    • A61B2034/2053—Tracking an applied voltage gradient
    • 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
    • A61N1/3627—Heart stimulators for treating a mechanical deficiency of the heart, e.g. congestive heart failure or cardiomyopathy

Abstract

Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using a non-fluoroscopic position sensing unit (PSU), such as a modified LocaLisa® system from Medtronic Inc., which allows for variable frequency sampling of the position of electrode of a catheter. The PSU injects small AC signals via surface electrodes in three orthogonal axes, each on a slightly different frequency (e.g., near 30 KHz). Indwelling electrodes electrically connected to the PSU resolves the magnitude of induced voltage for each of the three frequencies, thus measuring voltage for each of the three axes. Voltages are divided by induced current to yield impedance in each axis for each electrode. Impedance is proportional to position within the body. Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since the tip is retracted during implantation, this disclosure provides a modified distal portion employing at least one aperture (or 'window') for fluid exposure of the helix-electrode and a deployable internal sleeve for covering the aperture(s) when the helix-electrode is extended.
PCT/US2007/089087 2006-12-28 2007-12-28 Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation WO2008108901A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07870059A EP2136706A1 (en) 2007-04-18 2007-12-28 Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation
CN200780052606.8A CN101711125B (en) 2007-04-18 2007-12-28 For the active fixing medical electrical leads of long-term implantable that non-fluorescence mirror is implanted
US12/492,906 US8135467B2 (en) 2007-04-18 2009-06-26 Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
US88243106P 2006-12-28 2006-12-28
US88242006P 2006-12-28 2006-12-28
US88242506P 2006-12-28 2006-12-28
US88243506P 2006-12-28 2006-12-28
US88242806P 2006-12-28 2006-12-28
US88241306P 2006-12-28 2006-12-28
US60/882,428 2006-12-28
US60/882,420 2006-12-28
US60/882,425 2006-12-28
US60/882,431 2006-12-28
US60/882,413 2006-12-28
US60/882,435 2006-12-28
US91261007P 2007-04-18 2007-04-18
US60/912,610 2007-04-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/492,906 Continuation US8135467B2 (en) 2007-04-18 2009-06-26 Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation

Publications (2)

Publication Number Publication Date
WO2008108901A1 WO2008108901A1 (en) 2008-09-12
WO2008108901A8 true WO2008108901A8 (en) 2010-02-18

Family

ID=39539591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/089087 WO2008108901A1 (en) 2006-12-28 2007-12-28 Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation

Country Status (1)

Country Link
WO (1) WO2008108901A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8839798B2 (en) 2008-04-18 2014-09-23 Medtronic, Inc. System and method for determining sheath location
US8843189B2 (en) 2008-04-18 2014-09-23 Medtronic, Inc. Interference blocking and frequency selection
US8887736B2 (en) 2008-04-18 2014-11-18 Medtronic, Inc. Tracking a guide member

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711125B (en) 2007-04-18 2016-03-16 美敦力公司 For the active fixing medical electrical leads of long-term implantable that non-fluorescence mirror is implanted
US8340751B2 (en) 2008-04-18 2012-12-25 Medtronic, Inc. Method and apparatus for determining tracking a virtual point defined relative to a tracked member
US8663120B2 (en) 2008-04-18 2014-03-04 Regents Of The University Of Minnesota Method and apparatus for mapping a structure
US8260395B2 (en) 2008-04-18 2012-09-04 Medtronic, Inc. Method and apparatus for mapping a structure
US8456182B2 (en) * 2008-09-30 2013-06-04 Biosense Webster, Inc. Current localization tracker
US9023027B2 (en) 2008-09-30 2015-05-05 Biosense Webster (Israel), Ltd. Current localization tracker
CZ2008802A3 (en) * 2008-12-15 2010-06-23 Ústav prístrojové techniky AV CR, v.v.i. Apparatus to measure blood flow properties and method for connecting thereof
US8175681B2 (en) 2008-12-16 2012-05-08 Medtronic Navigation Inc. Combination of electromagnetic and electropotential localization
US8494614B2 (en) 2009-08-31 2013-07-23 Regents Of The University Of Minnesota Combination localization system
US8494613B2 (en) 2009-08-31 2013-07-23 Medtronic, Inc. Combination localization system
US8355774B2 (en) 2009-10-30 2013-01-15 Medtronic, Inc. System and method to evaluate electrode position and spacing
US11185274B2 (en) * 2018-06-18 2021-11-30 Biosense Webster (Israel) Ltd. Identifying orthogonal sets of active current location (ACL) patches

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506680A (en) 1983-03-17 1985-03-26 Medtronic, Inc. Drug dispensing body implantable lead
US5076285A (en) * 1990-03-30 1991-12-31 Medtronic, Inc. Screw-in lead
US5522874A (en) * 1994-07-28 1996-06-04 Gates; James T. Medical lead having segmented electrode
US5697377A (en) 1995-11-22 1997-12-16 Medtronic, Inc. Catheter mapping system and method
US7212867B2 (en) * 2000-12-07 2007-05-01 Medtronic, Inc. Directional brain stimulation and recording leads
US6766203B2 (en) * 2001-04-05 2004-07-20 Pacesetter, Inc. Body implantable lead with improved tip electrode assembly
DE10162508A1 (en) * 2001-12-19 2003-07-03 Biotronik Mess & Therapieg Epicardial lead, insertion catheter for such and electrode implantation set
US7844348B2 (en) * 2005-08-09 2010-11-30 Greatbatch Ltd. Fiber optic assisted medical lead

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8839798B2 (en) 2008-04-18 2014-09-23 Medtronic, Inc. System and method for determining sheath location
US8843189B2 (en) 2008-04-18 2014-09-23 Medtronic, Inc. Interference blocking and frequency selection
US8887736B2 (en) 2008-04-18 2014-11-18 Medtronic, Inc. Tracking a guide member
US9101285B2 (en) 2008-04-18 2015-08-11 Medtronic, Inc. Reference structure for a tracking system
US9131872B2 (en) 2008-04-18 2015-09-15 Medtronic, Inc. Multiple sensor input for structure identification
US9332928B2 (en) 2008-04-18 2016-05-10 Medtronic, Inc. Method and apparatus to synchronize a location determination in a structure with a characteristic of the structure

Also Published As

Publication number Publication date
WO2008108901A1 (en) 2008-09-12

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