CA2321671A1 - Tissue ablation system and method for forming long linear lesion - Google Patents

Tissue ablation system and method for forming long linear lesion Download PDF

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Publication number
CA2321671A1
CA2321671A1 CA002321671A CA2321671A CA2321671A1 CA 2321671 A1 CA2321671 A1 CA 2321671A1 CA 002321671 A CA002321671 A CA 002321671A CA 2321671 A CA2321671 A CA 2321671A CA 2321671 A1 CA2321671 A1 CA 2321671A1
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CA
Canada
Prior art keywords
tissue
ablation
along
predetermined locations
length
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002321671A
Other languages
French (fr)
Other versions
CA2321671C (en
Inventor
Jonathan J. Langberg
James C. Peacock, Iii
Michael D. Lesh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atrionix Inc
Original Assignee
Atrionix, Inc.
Jonathan J. Langberg
James C. Peacock, Iii
Michael D. Lesh
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 Atrionix, Inc., Jonathan J. Langberg, James C. Peacock, Iii, Michael D. Lesh filed Critical Atrionix, Inc.
Publication of CA2321671A1 publication Critical patent/CA2321671A1/en
Application granted granted Critical
Publication of CA2321671C publication Critical patent/CA2321671C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61B2018/00279—Anchoring means for temporary attachment of a device to tissue deployable
    • 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
    • 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

Abstract

The present invention relates to a tissue ablation device assembly which is adapted to form a conduction block along a length of tissue between two predetermined locations along the left atrial wall. The assembly comprises an ablation element on an elongated ablation member which is coupled to each of two delivery members, the delivery members having first and second anchors, respectively, that are adapted to anchor at the two predetermined locations, such that the delivery members are adapted to controllably position and secure the ablation element along the length of tissue between the predetermined locations. A linear lesion in the tissue between the predetermined locations is then formed by actuation of the ablation element.
The invention further provides that the ablation member may slideably engage one or two delivery members such that an adjustable length of the ablation element along the ablation member may be extended externally from the engaged delivery member and along a length of tissue.
CA002321671A 1998-03-02 1999-03-02 Tissue ablation system and method for forming long linear lesion Expired - Lifetime CA2321671C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US7656298P 1998-03-02 1998-03-02
US60/076,562 1998-03-02
US26031699A 1999-03-01 1999-03-01
US09/260,316 1999-03-01
PCT/US1999/004521 WO1999044519A2 (en) 1998-03-02 1999-03-02 Tissue ablation system and method for forming long linear lesion

Publications (2)

Publication Number Publication Date
CA2321671A1 true CA2321671A1 (en) 1999-09-10
CA2321671C CA2321671C (en) 2009-07-14

Family

ID=26758241

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002321671A Expired - Lifetime CA2321671C (en) 1998-03-02 1999-03-02 Tissue ablation system and method for forming long linear lesion

Country Status (5)

Country Link
US (2) US6527769B2 (en)
EP (1) EP1059886A2 (en)
AU (1) AU745659B2 (en)
CA (1) CA2321671C (en)
WO (1) WO1999044519A2 (en)

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US20030135207A1 (en) 2003-07-17
EP1059886A2 (en) 2000-12-20
CA2321671C (en) 2009-07-14
US20020082595A1 (en) 2002-06-27
US6527769B2 (en) 2003-03-04
WO1999044519A2 (en) 1999-09-10
AU2887199A (en) 1999-09-20

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