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WO1994010925B1 - Systeme de cauterisation electrochirurgicale refroidi par liquide - Google Patents

Systeme de cauterisation electrochirurgicale refroidi par liquide

Info

Publication number
WO1994010925B1
WO1994010925B1 PCT/US1993/010467 US9310467W WO9410925B1 WO 1994010925 B1 WO1994010925 B1 WO 1994010925B1 US 9310467 W US9310467 W US 9310467W WO 9410925 B1 WO9410925 B1 WO 9410925B1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
electrode
impedance
energy
probe member
Prior art date
Application number
PCT/US1993/010467
Other languages
English (en)
Other versions
WO1994010925A1 (fr
Filing date
Publication date
Priority claimed from US07/975,801 external-priority patent/US5342357A/en
Application filed filed Critical
Priority to EP94900471A priority Critical patent/EP0746250A1/fr
Priority to AU55448/94A priority patent/AU5544894A/en
Publication of WO1994010925A1 publication Critical patent/WO1994010925A1/fr
Publication of WO1994010925B1 publication Critical patent/WO1994010925B1/fr

Links

Abstract

L'invention se rapporte à une sonde électro-chirurgicale (16) capable de couper et de cautériser les tissus. Ladite sonde est constituée d'au moins une électrode de cautérisation (38, 40) montée sur la partie distale de celle-ci afin d'envoyer de l'énergie électro-chirurgicale dans des tissus. La sonde présente une lumière centrale (26) conçue pour recevoir le fluide provenant d'une source éloignée (24) et envoyé dans les tissus par un orifice de sortie (36) situé dans l'extrémité distale de la sonde (16). Cette lumière (26) renferme également une électrode coupante (34) déployable sélectivement. Il est ainsi possible d'effectuer la cautérisation et la coagulation en mode bipolaire. Le flux de liquide dans la lumière (26) sert à limiter le transfert de chaleur entre l'electrode de cautérisation et les tissus adjacents, afin d'empêcher que les tissus ne collent à la sonde (16). Un système de régulation (100) est également prévu afin d'optimiser la température des électrodes.
PCT/US1993/010467 1992-11-13 1993-11-01 Systeme de cauterisation electrochirurgicale refroidi par liquide WO1994010925A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94900471A EP0746250A1 (fr) 1992-11-13 1993-11-01 Systeme de cauterisation electrochirurgicale refroidi par liquide
AU55448/94A AU5544894A (en) 1992-11-13 1993-11-01 Fluid cooled electrosurgical cauterization system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/975,801 1992-11-13
US07/975,801 US5342357A (en) 1992-11-13 1992-11-13 Fluid cooled electrosurgical cauterization system

Publications (2)

Publication Number Publication Date
WO1994010925A1 WO1994010925A1 (fr) 1994-05-26
WO1994010925B1 true WO1994010925B1 (fr) 1994-07-21

Family

ID=25523413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/010467 WO1994010925A1 (fr) 1992-11-13 1993-11-01 Systeme de cauterisation electrochirurgicale refroidi par liquide

Country Status (4)

Country Link
US (2) US5342357A (fr)
EP (1) EP0746250A1 (fr)
AU (1) AU5544894A (fr)
WO (1) WO1994010925A1 (fr)

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US6958062B1 (en) 1993-11-08 2005-10-25 Rita Medical Systems, Inc. Multiple antenna ablation apparatus and method
US7422588B2 (en) 1995-02-22 2008-09-09 Medtronic, Inc. Pen-type electrosurgical instrument

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