DE69635273D1 - Systeme und methoden zur ablation von körpergewebe unter verwendung von vorhersehbarer maximumgewebetemperatur - Google Patents

Systeme und methoden zur ablation von körpergewebe unter verwendung von vorhersehbarer maximumgewebetemperatur

Info

Publication number
DE69635273D1
DE69635273D1 DE69635273T DE69635273T DE69635273D1 DE 69635273 D1 DE69635273 D1 DE 69635273D1 DE 69635273 T DE69635273 T DE 69635273T DE 69635273 T DE69635273 T DE 69635273T DE 69635273 D1 DE69635273 D1 DE 69635273D1
Authority
DE
Germany
Prior art keywords
systems
electrode
methods
tissue
temperature
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.)
Expired - Lifetime
Application number
DE69635273T
Other languages
English (en)
Other versions
DE69635273T2 (de
Inventor
Dorin Panescu
D Fleischman
K Swanson
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.)
Boston Scientific Ltd Barbados
Original Assignee
Boston Scientific Ltd Barbados
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 Boston Scientific Ltd Barbados filed Critical Boston Scientific Ltd Barbados
Application granted granted Critical
Publication of DE69635273D1 publication Critical patent/DE69635273D1/de
Publication of DE69635273T2 publication Critical patent/DE69635273T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

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    • 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
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    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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    • 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
    • A—HUMAN NECESSITIES
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    • 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
    • A61B18/1206—Generators therefor
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    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A61B2017/00092—Temperature using thermocouples
    • A—HUMAN NECESSITIES
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    • A61B2017/00137—Details of operation mode
    • A61B2017/00154—Details of operation mode pulsed
    • A—HUMAN NECESSITIES
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    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A—HUMAN NECESSITIES
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    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A—HUMAN NECESSITIES
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    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
    • A—HUMAN NECESSITIES
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    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
    • A—HUMAN NECESSITIES
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    • A61B2018/00047—Cooling or heating of the probe or tissue immediately surrounding the probe using Peltier effect
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    • A61B2018/00071—Electrical conductivity
    • A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
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    • A61B2018/00089—Thermal conductivity
    • A61B2018/00095—Thermal conductivity high, i.e. heat conducting
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    • A—HUMAN NECESSITIES
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    • 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
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    • 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
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    • A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control
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    • A61B2018/1246—Generators therefor characterised by the output polarity
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    • 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
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    • A61B2018/128—Generators therefor generating two or more frequencies
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    • 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
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
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    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Otolaryngology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Cardiology (AREA)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
DE69635273T 1995-05-01 1996-04-30 Systeme und methoden zur ablation von körpergewebe unter verwendung von vorhersehbarer maximumgewebetemperatur Expired - Lifetime DE69635273T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/431,775 US5735846A (en) 1994-06-27 1995-05-01 Systems and methods for ablating body tissue using predicted maximum tissue temperature
US431775 1995-05-01
PCT/US1996/005978 WO1996034569A1 (en) 1995-05-01 1996-04-30 Systems and methods for ablating body tissue using predicted maximum tissue temperature

Publications (2)

Publication Number Publication Date
DE69635273D1 true DE69635273D1 (de) 2006-02-23
DE69635273T2 DE69635273T2 (de) 2006-07-20

Family

ID=23713376

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69635273T Expired - Lifetime DE69635273T2 (de) 1995-05-01 1996-04-30 Systeme und methoden zur ablation von körpergewebe unter verwendung von vorhersehbarer maximumgewebetemperatur

Country Status (8)

Country Link
US (1) US5735846A (de)
EP (1) EP0823843B1 (de)
JP (3) JP3824090B2 (de)
AT (1) ATE306219T1 (de)
CA (1) CA2217538C (de)
DE (1) DE69635273T2 (de)
ES (1) ES2249780T3 (de)
WO (1) WO1996034569A1 (de)

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ATE306219T1 (de) 2005-10-15
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