WO2004078051A3 - Electrosurgical system - Google Patents

Electrosurgical system Download PDF

Info

Publication number
WO2004078051A3
WO2004078051A3 PCT/GB2004/000921 GB2004000921W WO2004078051A3 WO 2004078051 A3 WO2004078051 A3 WO 2004078051A3 GB 2004000921 W GB2004000921 W GB 2004000921W WO 2004078051 A3 WO2004078051 A3 WO 2004078051A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
electrodes
output
supplied
output stage
Prior art date
Application number
PCT/GB2004/000921
Other languages
French (fr)
Other versions
WO2004078051A2 (en
Inventor
Colin Charles Owen Goble
Scott T Latterell
Douglas S Wahnschaffe
Original Assignee
Gyrus Medial Ltd
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 claimed from GB0212162A external-priority patent/GB0212162D0/en
Priority claimed from US10/228,284 external-priority patent/US6984231B2/en
Priority claimed from GB0305022A external-priority patent/GB0305022D0/en
Priority claimed from US10/378,657 external-priority patent/US6929641B2/en
Application filed by Gyrus Medial Ltd filed Critical Gyrus Medial Ltd
Priority to EP04717148A priority Critical patent/EP1615572A2/en
Publication of WO2004078051A2 publication Critical patent/WO2004078051A2/en
Publication of WO2004078051A3 publication Critical patent/WO2004078051A3/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B18/1442Probes having pivoting end effectors, e.g. forceps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017Electrical control of surgical instruments
    • A61B2017/00212Electrical control of surgical instruments using remote controls
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345Vascular system
    • A61B2018/00404Blood vessels other than those in or around the heart
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00601Cutting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00607Coagulation and cutting with the same instrument
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/0066Sensing and controlling the application of energy without feedback, i.e. open loop control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/00666Sensing and controlling the application of energy using a threshold value
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/00666Sensing and controlling the application of energy using a threshold value
    • A61B2018/00678Sensing and controlling the application of energy using a threshold value upper
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/00773Sensed parameters
    • A61B2018/00875Resistance or impedance
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/00773Sensed parameters
    • A61B2018/00892Voltage
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091Handpieces of the surgical instrument or device
    • A61B2018/00916Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • A61B2018/124Generators therefor switching the output to different electrodes, e.g. sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/1206Generators therefor
    • A61B2018/1273Generators therefor including multiple generators in one device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B2018/1405Electrodes having a specific shape
    • A61B2018/1407Loop
    • A61B2018/141Snare

Abstract

An eleσtrosurgical system includes a generator for generating radio frequency (RF) power, ana an electrosurgical instrument (12) including at least three electrodes (40, 41, 42). The generator comprises an RF output stage (60) having at least a. pair o£ RF output lines (60c), a power supply (66) coupled to the output stage for supplying power to the output stage, and a controller (72 ) capable of varying the RF power signal supplied to the output lines. The system also includes a selection circuit (62) having- at least three output connections (52A, 62B, 62C) each in electrical connection with a respective one of the at least three electrodes. A switching device operable by the user causes the selection circuit to vary the electrode or electrodes to which RF power is supplied, and also causes the RP power signal supplied to at least one of the at least three output connections to vary depending on the electrode or electrodes to which RF power is supplied.
PCT/GB2004/000921 2001-08-27 2004-03-04 Electrosurgical system WO2004078051A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04717148A EP1615572A2 (en) 2003-03-05 2004-03-04 Electrosurgical system

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US31465001P 2001-08-27 2001-08-27
GB0212162A GB0212162D0 (en) 2002-05-27 2002-05-27 Electrosurgical system
US10/228,284 US6984231B2 (en) 2001-08-27 2002-08-27 Electrosurgical system
US10/378,657 2003-03-05
GB0305022.6 2003-03-05
GB0305022A GB0305022D0 (en) 2003-03-05 2003-03-05 Electrosurgical system
US10/378,657 US6929641B2 (en) 2001-08-27 2003-03-05 Electrosurgical system

Publications (2)

Publication Number Publication Date
WO2004078051A2 WO2004078051A2 (en) 2004-09-16
WO2004078051A3 true WO2004078051A3 (en) 2008-01-03

Family

ID=33102488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/000921 WO2004078051A2 (en) 2001-08-27 2004-03-04 Electrosurgical system

Country Status (1)

Country Link
WO (1) WO2004078051A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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US8905977B2 (en) 2004-07-28 2014-12-09 Ethicon Endo-Surgery, Inc. Surgical stapling instrument having an electroactive polymer actuated medical substance dispenser

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