CA2419228A1 - Radiofrequency thermal balloon catheter - Google Patents

Radiofrequency thermal balloon catheter Download PDF

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Publication number
CA2419228A1
CA2419228A1 CA002419228A CA2419228A CA2419228A1 CA 2419228 A1 CA2419228 A1 CA 2419228A1 CA 002419228 A CA002419228 A CA 002419228A CA 2419228 A CA2419228 A CA 2419228A CA 2419228 A1 CA2419228 A1 CA 2419228A1
Authority
CA
Canada
Prior art keywords
balloon
radiofrequency
outer shaft
electrode
catheter
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
CA002419228A
Other languages
French (fr)
Other versions
CA2419228C (en
Inventor
Shutaro Satake
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.)
Japan Electel Inc
Original Assignee
Individual
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
Priority to JP2001303112A priority Critical patent/JP3607231B2/en
Priority to EP02013333A priority patent/EP1297795B1/en
Priority to US10/173,107 priority patent/US6952615B2/en
Application filed by Individual filed Critical Individual
Priority to CA002419228A priority patent/CA2419228C/en
Publication of CA2419228A1 publication Critical patent/CA2419228A1/en
Application granted granted Critical
Publication of CA2419228C publication Critical patent/CA2419228C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • 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
    • A61B2018/00184—Moving parts
    • A61B2018/00202—Moving parts rotating
    • A61B2018/00208—Moving parts rotating actively driven, e.g. by a motor
    • 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
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • 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
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/0022—Balloons
    • 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
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
    • 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
    • A61B2018/00404—Blood vessels other than those in or around the heart
    • A61B2018/00422—Angioplasty
    • 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
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A61B2018/00821—Temperature measured by a thermocouple

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)
  • Electrotherapy Devices (AREA)

Abstract

A radiofrequency thermal balloon catheter makes it possible to heat uniformly the tissues in contact with the balloon and to achieve thermotherapy such as ablation or hyperthermia safely and properly for a diseased part. A radiofrequency thermal balloon catheter includes a catheter (4) consisting of an outer shaft (2) and an inner shaft (3) extended through the outer shaft so as to be slidable relative to the outer shaft, an inflatable balloon (6) capable of being inflated so as to be in contact with a target lesion (18) and equipped between respective front end parts of the outer and the inner shaft, a radiofrequency electrode (8) extended in a wall of the balloon or inside the balloon to be used for radiofrequency energy supply in combination with a counter electrode(53),the counter electrode being disposed at a predetermined position, for example, inside the balloon, in the wall of the balloon, in the position neighboring the balloon or on the patient's body surface, a lead wire (10) electrically connected to the radiofrequency electrode, a temperature sensor (12) capable of sensing temperature of a liquid contained in the balloon, and a temperature distribution uniformizing means(14) for uniformizing temperature distribution in the liquid contained in the balloon.
CA002419228A 2001-09-28 2003-02-20 Radiofrequency thermal balloon catheter Expired - Lifetime CA2419228C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001303112A JP3607231B2 (en) 2001-09-28 2001-09-28 High frequency heating balloon catheter
EP02013333A EP1297795B1 (en) 2001-09-28 2002-06-18 Radiofrequency thermal balloon catheter
US10/173,107 US6952615B2 (en) 2001-09-28 2002-06-18 Radiofrequency thermal balloon catheter
CA002419228A CA2419228C (en) 2001-09-28 2003-02-20 Radiofrequency thermal balloon catheter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001303112A JP3607231B2 (en) 2001-09-28 2001-09-28 High frequency heating balloon catheter
CA002419228A CA2419228C (en) 2001-09-28 2003-02-20 Radiofrequency thermal balloon catheter

Publications (2)

Publication Number Publication Date
CA2419228A1 true CA2419228A1 (en) 2004-08-20
CA2419228C CA2419228C (en) 2008-12-16

Family

ID=33435794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002419228A Expired - Lifetime CA2419228C (en) 2001-09-28 2003-02-20 Radiofrequency thermal balloon catheter

Country Status (4)

Country Link
US (1) US6952615B2 (en)
EP (1) EP1297795B1 (en)
JP (1) JP3607231B2 (en)
CA (1) CA2419228C (en)

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US9668809B2 (en) 2008-05-09 2017-06-06 Holaira, Inc. Systems, assemblies, and methods for treating a bronchial tree
US10953170B2 (en) 2003-05-13 2021-03-23 Nuvaira, Inc. Apparatus for treating asthma using neurotoxin
US11058879B2 (en) 2008-02-15 2021-07-13 Nuvaira, Inc. System and method for bronchial dilation
US11389233B2 (en) 2009-11-11 2022-07-19 Nuvaira, Inc. Systems, apparatuses, and methods for treating tissue and controlling stenosis

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