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WO1997003619A3 - Instrument electro-chirurgical coaxial - Google Patents

Instrument electro-chirurgical coaxial Download PDF

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Publication number
WO1997003619A3
WO1997003619A3 PCT/US1996/012065 US9612065W WO9703619A3 WO 1997003619 A3 WO1997003619 A3 WO 1997003619A3 US 9612065 W US9612065 W US 9612065W WO 9703619 A3 WO9703619 A3 WO 9703619A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
tissue
electrode
outer electrode
inner electrode
Prior art date
Application number
PCT/US1996/012065
Other languages
English (en)
Other versions
WO1997003619A2 (fr
Inventor
Gary Long
Original Assignee
Laser Centers Of America
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 Laser Centers Of America filed Critical Laser Centers Of America
Priority to AU65068/96A priority Critical patent/AU6506896A/en
Publication of WO1997003619A2 publication Critical patent/WO1997003619A2/fr
Publication of WO1997003619A3 publication Critical patent/WO1997003619A3/fr

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
    • A61B18/1402—Probes for open surgery

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un instrument d'électrochirurgie à structure coaxiale, constitué d'une électrode interne (702) de forme allongée, isolée d'une électrode externe (706) tubulaire, creuse et de forme allongée, contenant l'électrode interne. Une différence de potentiel haute fréquence régulée est appliquée entre les électrodes sous la commande de l'utilisateur lorsque les parties non isolées des extrémités distales sont simultanément mises en contact avec le tissu. Lorsqu'on applique de façon continue entre les électrodes une différence de potentiel haute fréquence régulée non amortie, le courant qui circule tranche facilement et nettement le tissu entre les électrodes. Une différence de potentiel à amortissement périodique de fréquence permet la cautérisation et la coagulation. La surface terminale (716) de l'extrémité distale de l'électrode externe est de préférence inclinée, la zone d'extrémité terminale (726) de l'électrode interne coopérante étant elle-même inclinée selon un axe commun des électrodes. Le bout(1250) de cette zone d'extrémité terminale est de forme bulbeuse en léger arrondi, ce qui permet d'établir avec le tissu le contact pour exécuter des opérations chirurgicales. Ce bout bulbeux en arrondi de l'électrode interne dépasse non seulement vers l'avant de l'électrode externe mais aussi radialement à l'extérieur de cette électrode externe, grâce à quoi il est possible d'appliquer une action légère de crochetage permettant de maintenir le tissu entre les électrodes pour faciliter la réalisation précise d'opérations chirurgicales sur ce tissu.
PCT/US1996/012065 1995-07-21 1996-07-22 Instrument electro-chirurgical coaxial WO1997003619A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65068/96A AU6506896A (en) 1995-07-21 1996-07-22 Coaxial electrosurgical instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50554395A 1995-07-21 1995-07-21
US08/505,543 1995-07-21

Publications (2)

Publication Number Publication Date
WO1997003619A2 WO1997003619A2 (fr) 1997-02-06
WO1997003619A3 true WO1997003619A3 (fr) 1997-03-06

Family

ID=24010735

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/012065 WO1997003619A2 (fr) 1995-07-21 1996-07-22 Instrument electro-chirurgical coaxial

Country Status (2)

Country Link
AU (1) AU6506896A (fr)
WO (1) WO1997003619A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9813042D0 (en) * 1998-06-17 1998-08-12 Nuvotek Ltd Electrosurgical cutting tool
CN111658128B (zh) * 2020-07-08 2023-09-22 安瑞医疗器械(杭州)有限公司 一种具有多功能的高频刀具
EP4236846A1 (fr) * 2020-10-30 2023-09-06 Smith & Nephew, Inc. Sonde de résection arthroscopique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936301A (en) * 1987-06-23 1990-06-26 Concept, Inc. Electrosurgical method using an electrically conductive fluid
US5009656A (en) * 1989-08-17 1991-04-23 Mentor O&O Inc. Bipolar electrosurgical instrument
US5261906A (en) * 1991-12-09 1993-11-16 Ralph Pennino Electro-surgical dissecting and cauterizing instrument
US5267994A (en) * 1992-02-10 1993-12-07 Conmed Corporation Electrosurgical probe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936301A (en) * 1987-06-23 1990-06-26 Concept, Inc. Electrosurgical method using an electrically conductive fluid
US5009656A (en) * 1989-08-17 1991-04-23 Mentor O&O Inc. Bipolar electrosurgical instrument
US5261906A (en) * 1991-12-09 1993-11-16 Ralph Pennino Electro-surgical dissecting and cauterizing instrument
US5267994A (en) * 1992-02-10 1993-12-07 Conmed Corporation Electrosurgical probe

Also Published As

Publication number Publication date
AU6506896A (en) 1997-02-18
WO1997003619A2 (fr) 1997-02-06

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