CA2159483A1 - Method and Apparatus for Endometrial Ablation - Google Patents

Method and Apparatus for Endometrial Ablation

Info

Publication number
CA2159483A1
CA2159483A1 CA2159483A CA2159483A CA2159483A1 CA 2159483 A1 CA2159483 A1 CA 2159483A1 CA 2159483 A CA2159483 A CA 2159483A CA 2159483 A CA2159483 A CA 2159483A CA 2159483 A1 CA2159483 A1 CA 2159483A1
Authority
CA
Canada
Prior art keywords
endometrium
temperature
degrees celsius
current
lining
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
CA2159483A
Other languages
French (fr)
Other versions
CA2159483C (en
Inventor
Roger A. Stern
Vincent N. Sullivan
Robert L. Marion
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.)
Covidien AG
Original Assignee
Roger A. Stern
Vincent N. Sullivan
Robert L. Marion
Vesta Medical, Inc.
Sherwood Services Ag
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 Roger A. Stern, Vincent N. Sullivan, Robert L. Marion, Vesta Medical, Inc., Sherwood Services Ag filed Critical Roger A. Stern
Publication of CA2159483A1 publication Critical patent/CA2159483A1/en
Application granted granted Critical
Publication of CA2159483C publication Critical patent/CA2159483C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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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
    • A61B18/1485—Probes or electrodes therefor having a short rigid shaft for accessing the inner body through natural openings
    • 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
    • A61N1/06—Electrodes for high-frequency therapy
    • A—HUMAN NECESSITIES
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    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
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    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • A61N1/403—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals for thermotherapy, e.g. hyperthermia
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    • A61B2017/00084—Temperature
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    • A—HUMAN NECESSITIES
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    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
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    • A61B17/42—Gynaecological or obstetrical instruments or methods
    • A61B2017/4216—Operations on uterus, e.g. endometrium
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    • A61B2018/00113—Coatings on the energy applicator with foam
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    • A61B2018/0022—Balloons
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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
    • A61B2018/00559—Female reproductive organs
    • 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
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    • 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
    • A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control
    • A61B2018/00654—Sensing and controlling the application of energy with feedback, i.e. closed loop control with individual control of each of a plurality of energy emitting elements
    • A—HUMAN NECESSITIES
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    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00702—Power or energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
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    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A61B2018/00797—Temperature measured by multiple temperature sensors
    • A—HUMAN NECESSITIES
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    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A61B2018/00815—Temperature measured by a thermistor
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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
    • A61B2018/124—Generators therefor switching the output to different electrodes, e.g. sequentially
    • 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
    • A61B2018/1246—Generators therefor characterised by the output polarity
    • A61B2018/1253—Generators therefor characterised by the output polarity monopolar
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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
    • A61B2018/1465—Deformable electrodes
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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
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
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    • 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
    • A61B18/16—Indifferent or passive electrodes for grounding
    • A61B2018/162—Indifferent or passive electrodes for grounding located on the probe body

Abstract

An endometrial ablation apparatus and method wherein an RF current having a frequency of between 250 kHz and 100 MHz is passed through the entire surface of an endometrium in order to provide heating of the endometrium. An electroconductive expandable member such as a balloon (14) is used as the medium for passing the current and causing the heating of the endometrium.
The temperature of the endometrium is raised to a temperature between 45 degrees Celsius and 90 degrees Celsius and preferably not above 70 degrees Celsius for a time sufficient to destroy the cells of the lining while maintaining the average temperature of the myo-metrium at a temperature below approximately 42 degrees Celsius.
The expandable balloon (14) is connected to a power source (197) which provides the radio frequency power having the desired characteristics to selectively heat the endometrial lining to the desired temperature.
CA002159483A 1993-04-14 1994-04-11 Method and apparatus for endometrial ablation Expired - Fee Related CA2159483C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US046,683 1993-04-14
US08/046,683 US5443470A (en) 1992-05-01 1993-04-14 Method and apparatus for endometrial ablation
PCT/US1994/003695 WO1994023794A1 (en) 1993-04-14 1994-04-11 Method and apparatus for endometrial ablation

Publications (2)

Publication Number Publication Date
CA2159483A1 true CA2159483A1 (en) 1994-10-27
CA2159483C CA2159483C (en) 2000-02-22

Family

ID=21944814

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002159483A Expired - Fee Related CA2159483C (en) 1993-04-14 1994-04-11 Method and apparatus for endometrial ablation

Country Status (11)

Country Link
US (3) US5443470A (en)
EP (1) EP0693955B1 (en)
JP (1) JP3566722B2 (en)
AT (1) ATE230284T1 (en)
AU (1) AU6625594A (en)
CA (1) CA2159483C (en)
DE (1) DE69431950T2 (en)
ES (1) ES2189801T3 (en)
IL (1) IL109296A0 (en)
TW (1) TW295539B (en)
WO (1) WO1994023794A1 (en)

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US6041260A (en) 2000-03-21
WO1994023794A1 (en) 1994-10-27
TW295539B (en) 1997-01-11
EP0693955B1 (en) 2003-01-02
US5443470A (en) 1995-08-22
JPH08508912A (en) 1996-09-24
IL109296A0 (en) 1994-07-31
AU6625594A (en) 1994-11-08
US5713942A (en) 1998-02-03
DE69431950D1 (en) 2003-02-06
ES2189801T3 (en) 2003-07-16
ATE230284T1 (en) 2003-01-15
EP0693955A1 (en) 1996-01-31
EP0693955A4 (en) 1998-01-07
DE69431950T2 (en) 2003-11-13
CA2159483C (en) 2000-02-22
JP3566722B2 (en) 2004-09-15

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