CA2194062A1 - System for controlling tissue ablation using temperature sensors - Google Patents

System for controlling tissue ablation using temperature sensors

Info

Publication number
CA2194062A1
CA2194062A1 CA002194062A CA2194062A CA2194062A1 CA 2194062 A1 CA2194062 A1 CA 2194062A1 CA 002194062 A CA002194062 A CA 002194062A CA 2194062 A CA2194062 A CA 2194062A CA 2194062 A1 CA2194062 A1 CA 2194062A1
Authority
CA
Canada
Prior art keywords
emitter
tissue ablation
emitters
individually
temperature sensors
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
CA002194062A
Other languages
French (fr)
Other versions
CA2194062C (en
Inventor
Dorin Panescu
James G. Whayne
Sidney D. Fleischman
David 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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26952123&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2194062(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2194062A1 publication Critical patent/CA2194062A1/en
Application granted granted Critical
Publication of CA2194062C publication Critical patent/CA2194062C/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
    • A61B18/1206—Generators therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space
    • A—HUMAN NECESSITIES
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    • 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
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    • 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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    • A61B2018/00345—Vascular system
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    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
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    • A—HUMAN NECESSITIES
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    • 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
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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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    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe

Abstract

This invention is a system and associated method to ablate body tissue using multiple emitters (30) of ablating energy. The system and method convey ablating energy individually to each emitter (30) in a sequence of power pulses.
The system and method periodically sense the temperature of each emitter (30) and compare the sensed temperatures to a desired temperature established for all emitters (30) to generate a signal individually for each emitter (30) based upon the comparison. The system and method individually vary the power pulse to each emitter (30) based upon the signal for that emitter to maintain the temperatures of all emitters essentially at the desired temperature during tissue ablation.
CA002194062A 1994-06-27 1994-10-14 System for controlling tissue ablation using temperature sensors Expired - Fee Related CA2194062C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US26693494A 1994-06-27 1994-06-27
US08/266,934 1994-06-27
US28693094A 1994-08-08 1994-08-08
US08/286,930 1994-08-08
PCT/US1994/011748 WO1996000036A1 (en) 1994-06-27 1994-10-14 System for controlling tissue ablation using temperature sensors

Publications (2)

Publication Number Publication Date
CA2194062A1 true CA2194062A1 (en) 1996-01-04
CA2194062C CA2194062C (en) 2005-06-28

Family

ID=26952123

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002194062A Expired - Fee Related CA2194062C (en) 1994-06-27 1994-10-14 System for controlling tissue ablation using temperature sensors

Country Status (8)

Country Link
US (1) US5769847A (en)
EP (1) EP0768841B1 (en)
JP (2) JP3564141B2 (en)
AT (1) ATE255369T1 (en)
CA (1) CA2194062C (en)
DE (1) DE69433387T2 (en)
ES (1) ES2214493T3 (en)
WO (1) WO1996000036A1 (en)

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