WO2007050960A3 - Systems and methods for electrode contact assessment - Google Patents

Systems and methods for electrode contact assessment Download PDF

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Publication number
WO2007050960A3
WO2007050960A3 PCT/US2006/042119 US2006042119W WO2007050960A3 WO 2007050960 A3 WO2007050960 A3 WO 2007050960A3 US 2006042119 W US2006042119 W US 2006042119W WO 2007050960 A3 WO2007050960 A3 WO 2007050960A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
systems
methods
electro
mechanical sensor
Prior art date
Application number
PCT/US2006/042119
Other languages
French (fr)
Other versions
WO2007050960A2 (en
Inventor
Saurav Paul
Troy Tegg
Chou Thao
Hong Cao
Harry Puryear
Fos Kuehn
Reed R Heimbecher
Original Assignee
St Jude Medical Atrial Fibrill
Saurav Paul
Troy Tegg
Chou Thao
Hong Cao
Harry Puryear
Fos Kuehn
Reed R Heimbecher
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 St Jude Medical Atrial Fibrill, Saurav Paul, Troy Tegg, Chou Thao, Hong Cao, Harry Puryear, Fos Kuehn, Reed R Heimbecher filed Critical St Jude Medical Atrial Fibrill
Priority to CA2626833A priority Critical patent/CA2626833C/en
Priority to AU2006305967A priority patent/AU2006305967B2/en
Priority to US12/091,151 priority patent/US8162935B2/en
Priority to BRPI0618421-9A priority patent/BRPI0618421A2/en
Priority to AT06836608T priority patent/ATE548985T1/en
Priority to EP06836608A priority patent/EP1948057B1/en
Priority to JP2008538034A priority patent/JP4926183B2/en
Publication of WO2007050960A2 publication Critical patent/WO2007050960A2/en
Publication of WO2007050960A3 publication Critical patent/WO2007050960A3/en
Priority to IL190875A priority patent/IL190875A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852—Catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6885—Monitoring or controlling sensor contact pressure
    • 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
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure

Abstract

Systems and methods are disclosed for assessing electrode-tissue contact for tissue ablation. An exemplary electrode contact sensing system comprises an electrode 10 housed within a distal portion of a catheter shaft 14. At least one electro-mechanical sensor 20 is operatively associated with the electrode 10 within the catheter shaft 14. The at least one electro-mechanical sensor 20 is responsive to movement of the electrode 10 by generating electrical signals corresponding to the amount of movement. The system may also include an output device electrically connected to the at least one electro-mechanical sensor 20. The output device receives the electrical signals for assessing a level of contact between the electrode 10 and a tissue 12.
PCT/US2006/042119 2005-10-27 2006-10-27 Systems and methods for electrode contact assessment WO2007050960A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2626833A CA2626833C (en) 2005-10-27 2006-10-27 Systems and methods for electrode contact assessment
AU2006305967A AU2006305967B2 (en) 2005-10-27 2006-10-27 Systems and methods for electrode contact assessment
US12/091,151 US8162935B2 (en) 2005-10-27 2006-10-27 Systems and methods for electrode contact assessment
BRPI0618421-9A BRPI0618421A2 (en) 2005-10-27 2006-10-27 systems and methods for electrode contact evaluation
AT06836608T ATE548985T1 (en) 2005-10-27 2006-10-27 SYSTEMS FOR ASSESSING ELECTRODE CONTACT
EP06836608A EP1948057B1 (en) 2005-10-27 2006-10-27 Systems for electrode contact assessment
JP2008538034A JP4926183B2 (en) 2005-10-27 2006-10-27 Tissue contact detection system
IL190875A IL190875A (en) 2005-10-27 2008-04-15 Systems and methods for electrode contact assessment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73063405P 2005-10-27 2005-10-27
US60/730,634 2005-10-27

Publications (2)

Publication Number Publication Date
WO2007050960A2 WO2007050960A2 (en) 2007-05-03
WO2007050960A3 true WO2007050960A3 (en) 2007-12-06

Family

ID=37968595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/042119 WO2007050960A2 (en) 2005-10-27 2006-10-27 Systems and methods for electrode contact assessment

Country Status (9)

Country Link
US (2) US8021361B2 (en)
EP (1) EP1948057B1 (en)
JP (1) JP4926183B2 (en)
AT (1) ATE548985T1 (en)
AU (1) AU2006305967B2 (en)
BR (1) BRPI0618421A2 (en)
CA (1) CA2626833C (en)
IL (1) IL190875A (en)
WO (1) WO2007050960A2 (en)

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