WO2005120375A3 - Loop ablation apparatus and method - Google Patents

Loop ablation apparatus and method Download PDF

Info

Publication number
WO2005120375A3
WO2005120375A3 PCT/US2005/019127 US2005019127W WO2005120375A3 WO 2005120375 A3 WO2005120375 A3 WO 2005120375A3 US 2005019127 W US2005019127 W US 2005019127W WO 2005120375 A3 WO2005120375 A3 WO 2005120375A3
Authority
WO
WIPO (PCT)
Prior art keywords
target tissue
loop
electrode rods
ablation apparatus
bipolar electrodes
Prior art date
Application number
PCT/US2005/019127
Other languages
French (fr)
Other versions
WO2005120375A2 (en
WO2005120375A9 (en
Inventor
Steven C Christian
David E Francischelli
Adam A Podbeliski
Daniel C Haeg
Tom P Daigle
Marie T Steinbrink
Roderick E Briscoe
Original Assignee
Medtronic Inc
Steven C Christian
David E Francischelli
Adam A Podbeliski
Daniel C Haeg
Tom P Daigle
Marie T Steinbrink
Roderick E Briscoe
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, Steven C Christian, David E Francischelli, Adam A Podbeliski, Daniel C Haeg, Tom P Daigle, Marie T Steinbrink, Roderick E Briscoe filed Critical Medtronic Inc
Priority to EP05755922A priority Critical patent/EP1750607A2/en
Publication of WO2005120375A2 publication Critical patent/WO2005120375A2/en
Publication of WO2005120375A3 publication Critical patent/WO2005120375A3/en
Publication of WO2005120375A9 publication Critical patent/WO2005120375A9/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
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
    • A61B2018/00291—Anchoring means for temporary attachment of a device to tissue using suction
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A61B2018/00363—Epicardium
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A61B2018/00375—Ostium, e.g. ostium of pulmonary vein or artery
    • 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
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • 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
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1407—Loop
    • 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
    • A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes

Abstract

Embodiments of the invention provide an ablation apparatus for ablating target tissue adjacent pulmonary veins of a patient. The ablation apparatus can include a tube capable of being advanced around the pulmonary veins to form a loop. The tube can receive or include electrodes to ablate target tissue. Some embodiments provide a loop ablation device, which may include a cannula and two or more electrode rods carrying two or more bipolar electrodes. The electrode rods can be advanced through the distal ends toward the proximal ends of the loop and toward the target tissue. The bipolar electrodes can receive energy to ablate the target tissue. The bipolar electrodes may be surrounded by the liquid within the cannula while ablating the target tissue. The loop ablation device can further include a rotating grasping mechanism coupled to the electrode rods.
PCT/US2005/019127 2004-06-02 2005-06-01 Loop ablation apparatus and method WO2005120375A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05755922A EP1750607A2 (en) 2004-06-02 2005-06-01 Loop ablation apparatus and method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57624404P 2004-06-02 2004-06-02
US60/576,244 2004-06-02
US58113804P 2004-06-18 2004-06-18
US60/581,138 2004-06-18

Publications (3)

Publication Number Publication Date
WO2005120375A2 WO2005120375A2 (en) 2005-12-22
WO2005120375A3 true WO2005120375A3 (en) 2006-04-27
WO2005120375A9 WO2005120375A9 (en) 2006-06-29

Family

ID=34971636

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/019127 WO2005120375A2 (en) 2004-06-02 2005-06-01 Loop ablation apparatus and method

Country Status (3)

Country Link
US (1) US7678108B2 (en)
EP (1) EP1750607A2 (en)
WO (1) WO2005120375A2 (en)

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WO2005120375A9 (en) 2006-06-29
US20060009759A1 (en) 2006-01-12
US7678108B2 (en) 2010-03-16
EP1750607A2 (en) 2007-02-14

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