WO2006057966A3 - Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof - Google Patents

Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof Download PDF

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Publication number
WO2006057966A3
WO2006057966A3 PCT/US2005/042174 US2005042174W WO2006057966A3 WO 2006057966 A3 WO2006057966 A3 WO 2006057966A3 US 2005042174 W US2005042174 W US 2005042174W WO 2006057966 A3 WO2006057966 A3 WO 2006057966A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode tip
electrosurgical
fluid
pump
facing
Prior art date
Application number
PCT/US2005/042174
Other languages
French (fr)
Other versions
WO2006057966A2 (en
Inventor
Michael E Mcclurken
Robert Luzzi
Original Assignee
Tissuelink Medical Inc
Michael E Mcclurken
Robert Luzzi
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 Tissuelink Medical Inc, Michael E Mcclurken, Robert Luzzi filed Critical Tissuelink Medical Inc
Priority to JP2007543355A priority Critical patent/JP4874990B2/en
Priority to AT05851938T priority patent/ATE519439T1/en
Priority to EP10177678.9A priority patent/EP2305160B1/en
Priority to EP05851938A priority patent/EP1827275B1/en
Publication of WO2006057966A2 publication Critical patent/WO2006057966A2/en
Publication of WO2006057966A3 publication Critical patent/WO2006057966A3/en

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
    • A61B18/1402—Probes for open surgery
    • 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
    • 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
    • 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
    • A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control
    • 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
    • A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
    • 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
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/1815—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 microwaves
    • A61B2018/1861—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 microwaves with an instrument inserted into a body lumen or cavity, e.g. a catheter

Abstract

The invention provides an electrosurgical unit comprising a radio-frequency power source and a pump, with the throughput of fluid expelled by the pump controlled by the RF power level setting and fluid flow rate setting. The invention also provides various electrosurgical devices which may be used with the electrosurgical unit. In one embodiment, the electrosurgical device comprises a first electrode tip spaced next to a second electrode tip with a portion of the first electrode tip facing the second electrode tip and a portion of the second electrode tip facing the first electrode tip, the first electrode tip and the second electrode tip both having a spherical distal end, and a fluid outlet arrangement to expel fluid onto the electrode tips solely at locations remote from the electrode tip portions facing each other.
PCT/US2005/042174 2004-11-23 2005-11-21 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof WO2006057966A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007543355A JP4874990B2 (en) 2004-11-23 2005-11-21 Fluid-assisted electrosurgical device using pump, electrosurgical unit and method of using the same
AT05851938T ATE519439T1 (en) 2004-11-23 2005-11-21 FLUID-ASSISTED ELECTROSURGICAL DEVICES
EP10177678.9A EP2305160B1 (en) 2004-11-23 2005-11-21 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof
EP05851938A EP1827275B1 (en) 2004-11-23 2005-11-21 Fluid-assisted electrosurgical devices

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US63058204P 2004-11-23 2004-11-23
US60/630,582 2004-11-23
US11/274,908 US7811282B2 (en) 2000-03-06 2005-11-14 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof
US11/274,908 2005-11-14

Publications (2)

Publication Number Publication Date
WO2006057966A2 WO2006057966A2 (en) 2006-06-01
WO2006057966A3 true WO2006057966A3 (en) 2006-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/042174 WO2006057966A2 (en) 2004-11-23 2005-11-21 Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof

Country Status (5)

Country Link
US (2) US7811282B2 (en)
EP (2) EP2305160B1 (en)
JP (2) JP4874990B2 (en)
AT (1) ATE519439T1 (en)
WO (1) WO2006057966A2 (en)

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US8361068B2 (en) 2013-01-29
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US20060149225A1 (en) 2006-07-06
JP5373844B2 (en) 2013-12-18
US20110028965A1 (en) 2011-02-03
JP4874990B2 (en) 2012-02-15
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EP1827275A2 (en) 2007-09-05
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EP2305160A1 (en) 2011-04-06
US7811282B2 (en) 2010-10-12

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