WO2003028542A3 - Apparatus and methods for electrosurgical removal and digestion of tissue - Google Patents

Apparatus and methods for electrosurgical removal and digestion of tissue Download PDF

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Publication number
WO2003028542A3
WO2003028542A3 PCT/US2002/031640 US0231640W WO03028542A3 WO 2003028542 A3 WO2003028542 A3 WO 2003028542A3 US 0231640 W US0231640 W US 0231640W WO 03028542 A3 WO03028542 A3 WO 03028542A3
Authority
WO
WIPO (PCT)
Prior art keywords
tissue
active electrode
screen
electrosurgical
methods
Prior art date
Application number
PCT/US2002/031640
Other languages
French (fr)
Other versions
WO2003028542A2 (en
Inventor
Terry S Davison
Theodore C Ormsby
Jean Woloszko
Robert H Dahla
Original Assignee
Arthrocare Corp
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 filed Critical Arthrocare Corp
Priority to AU2002332031A priority Critical patent/AU2002332031A1/en
Priority to EP02768969.4A priority patent/EP1437977B1/en
Publication of WO2003028542A2 publication Critical patent/WO2003028542A2/en
Publication of WO2003028542A3 publication Critical patent/WO2003028542A3/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
    • 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
    • A61B2018/00571—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
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1407—Loop
    • 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
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
    • 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
    • A61B2218/007—Aspiration

Abstract

Electrosurgical methods, systems, and apparatus for the controlled ablation of tissue from a target site of a patient. An electrosurgical apparatus of the invention includes an active electrode assembly (2720) having an active electrode screen (2708) surrounded by a plurality of flow protectors (2752 a-d). Each flow protector defines a shielded region of the active electrode screen, each shielded region of the screen characterized by enhanced plasma formation. The active electrode assembly is adapted for removing tissue from a surgical site, and the active electrode screen is adapted for digesting fragments of resected tissue. In one embodiment, the apparatus is particularly suited to simultaneously removing both hard and soft tissue in, or around, a joint.
PCT/US2002/031640 2001-10-02 2002-10-02 Apparatus and methods for electrosurgical removal and digestion of tissue WO2003028542A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002332031A AU2002332031A1 (en) 2001-10-02 2002-10-02 Apparatus and methods for electrosurgical removal and digestion of tissue
EP02768969.4A EP1437977B1 (en) 2001-10-02 2002-10-02 Apparatus for electrosurgical removal and digestion of tissue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32651601P 2001-10-02 2001-10-02
US60/326,516 2001-10-02

Publications (2)

Publication Number Publication Date
WO2003028542A2 WO2003028542A2 (en) 2003-04-10
WO2003028542A3 true WO2003028542A3 (en) 2003-11-06

Family

ID=23272544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/031640 WO2003028542A2 (en) 2001-10-02 2002-10-02 Apparatus and methods for electrosurgical removal and digestion of tissue

Country Status (4)

Country Link
US (1) US6949096B2 (en)
EP (1) EP1437977B1 (en)
AU (1) AU2002332031A1 (en)
WO (1) WO2003028542A2 (en)

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AU2002332031A1 (en) 2003-04-14
WO2003028542A2 (en) 2003-04-10
EP1437977B1 (en) 2014-05-21
US20030097129A1 (en) 2003-05-22
US6949096B2 (en) 2005-09-27
EP1437977A2 (en) 2004-07-21
EP1437977A4 (en) 2007-03-21

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