WO2007103800A3 - Internally located return electrode electrosurgical apparatus, system and method - Google Patents

Internally located return electrode electrosurgical apparatus, system and method Download PDF

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Publication number
WO2007103800A3
WO2007103800A3 PCT/US2007/063198 US2007063198W WO2007103800A3 WO 2007103800 A3 WO2007103800 A3 WO 2007103800A3 US 2007063198 W US2007063198 W US 2007063198W WO 2007103800 A3 WO2007103800 A3 WO 2007103800A3
Authority
WO
WIPO (PCT)
Prior art keywords
tissue
return electrode
electrodes
shaft
electrosurgical apparatus
Prior art date
Application number
PCT/US2007/063198
Other languages
French (fr)
Other versions
WO2007103800B1 (en
WO2007103800A2 (en
Inventor
Jean Woloszko
George Morrison
Thomas Jenkins
Original Assignee
Arthrocare Corp
Jean Woloszko
George Morrison
Thomas Jenkins
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 Arthrocare Corp, Jean Woloszko, George Morrison, Thomas Jenkins filed Critical Arthrocare Corp
Priority to EP07757813.6A priority Critical patent/EP1996105B1/en
Publication of WO2007103800A2 publication Critical patent/WO2007103800A2/en
Publication of WO2007103800A3 publication Critical patent/WO2007103800A3/en
Publication of WO2007103800B1 publication Critical patent/WO2007103800B1/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
    • A61B18/148—Probes or electrodes therefor having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
    • 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
    • A61B2018/00053—Mechanical features of the instrument of device
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00434—Neural system
    • A61B2018/0044—Spinal cord
    • 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
    • A61B2018/00583—Coblation, i.e. ablation using a cold plasma
    • 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
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A61B2218/008—Aspiration for smoke evacuation

Abstract

A bipolar, plasma-generating electrosurgical apparatus and system wherein the return electrode is enclosed within an electrosurgical shaft, and the active electrode is located on the outside surface of the shaft such that in treating the tissue, the tissue is exposed to plasma generated on the active electrode, but is minimally exposed to electric fields generated between the active and return electrodes. Due to the configuration of the electrodes, electric fields generated between the electrodes are directed away from the target tissue and inwardly towards the return electrode within the shaft, thereby electrical stimulation of neuromuscular structures in the tissue by the electric fields is minimized.
PCT/US2007/063198 2006-03-02 2007-03-02 Internally located return electrode electrosurgical apparatus, system and method WO2007103800A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07757813.6A EP1996105B1 (en) 2006-03-02 2007-03-02 Internally located return electrode electrosurgical apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/367,254 US7879034B2 (en) 2006-03-02 2006-03-02 Internally located return electrode electrosurgical apparatus, system and method
US11/367,254 2006-03-02

Publications (3)

Publication Number Publication Date
WO2007103800A2 WO2007103800A2 (en) 2007-09-13
WO2007103800A3 true WO2007103800A3 (en) 2008-07-31
WO2007103800B1 WO2007103800B1 (en) 2008-09-25

Family

ID=38472342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/063198 WO2007103800A2 (en) 2006-03-02 2007-03-02 Internally located return electrode electrosurgical apparatus, system and method

Country Status (3)

Country Link
US (3) US7879034B2 (en)
EP (1) EP1996105B1 (en)
WO (1) WO2007103800A2 (en)

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US7879034B2 (en) 2011-02-01
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US7901403B2 (en) 2011-03-08

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