CA2168660A1 - Apparatus for ablation - Google Patents

Apparatus for ablation

Info

Publication number
CA2168660A1
CA2168660A1 CA002168660A CA2168660A CA2168660A1 CA 2168660 A1 CA2168660 A1 CA 2168660A1 CA 002168660 A CA002168660 A CA 002168660A CA 2168660 A CA2168660 A CA 2168660A CA 2168660 A1 CA2168660 A1 CA 2168660A1
Authority
CA
Canada
Prior art keywords
ablation
catheter
tbrough
hollow needle
ablating
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
CA002168660A
Other languages
French (fr)
Other versions
CA2168660C (en
Inventor
Peter M. J. Mulier
Michael F. Hoey
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.)
Medtronic Inc
Original Assignee
Peter M. J. Mulier
Michael F. Hoey
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 Peter M. J. Mulier, Michael F. Hoey, Medtronic, Inc. filed Critical Peter M. J. Mulier
Publication of CA2168660A1 publication Critical patent/CA2168660A1/en
Application granted granted Critical
Publication of CA2168660C publication Critical patent/CA2168660C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/0069—Tip not integral with tube
    • 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
    • A61N1/0565—Electrode heads
    • 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
    • A61N1/0565—Electrode heads
    • A61N1/0568—Electrode heads with drug delivery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac

Abstract

An ablation catheter and a method of performing cardiac ablation using alcohol or other ablating agents. The catheter is provided with a helical hollow needle, which is screwed into heart tissue, after which the ablating agent is delivered tbrough the needle. Prior to ablation, the catheter may be employed to locate an appropriate ablation site or to assess the suitability of an identified ablation site by injection of an excitability reducing agent such as lidocaine, tbrough the hollow needle, followed by a determination of whether the arrhythmia intended to be treated as terminated.
CA002168660A 1993-08-27 1994-08-09 Apparatus for ablation Expired - Fee Related CA2168660C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/113,541 1993-08-27
US08/113,541 US5405376A (en) 1993-08-27 1993-08-27 Method and apparatus for ablation
PCT/US1994/008869 WO1995005867A1 (en) 1993-08-27 1994-08-09 Apparatus for ablation

Publications (2)

Publication Number Publication Date
CA2168660A1 true CA2168660A1 (en) 1995-03-02
CA2168660C CA2168660C (en) 2001-02-27

Family

ID=22350033

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168660A Expired - Fee Related CA2168660C (en) 1993-08-27 1994-08-09 Apparatus for ablation

Country Status (7)

Country Link
US (1) US5405376A (en)
EP (1) EP0719162B1 (en)
JP (1) JP2935571B2 (en)
AU (1) AU676767B2 (en)
CA (1) CA2168660C (en)
DE (1) DE69406941T2 (en)
WO (1) WO1995005867A1 (en)

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JPH08508917A (en) 1996-09-24
AU676767B2 (en) 1997-03-20
US5405376A (en) 1995-04-11
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EP0719162A1 (en) 1996-07-03
JP2935571B2 (en) 1999-08-16

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