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1. WO1981003271 - A MULTIPOLAR ELECTROSURGICAL DEVICE

Publication Number WO/1981/003271
Publication Date 26.11.1981
International Application No. PCT/US1980/001443
International Filing Date 28.10.1980
IPC
A61B 18/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
A61B 17/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
A61M 3/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
3Medical syringes, e.g. enemata; Irrigators
02Enemata; Irrigators
CPC
A61B 18/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
A61B 18/1402
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
1402Probes for open surgery
A61B 2017/00292
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
00234for minimally invasive surgery
00292mounted on or guided by flexible, e.g. catheter-like, means
A61B 2018/1497
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04by heating
12by passing a current through the tissue to be heated, e.g. high-frequency current
14Probes or electrodes therefor
1497Electrodes covering only part of the probe circumference
A61B 2018/1861
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
18by applying electromagnetic radiation, e.g. microwaves
1815using microwaves
1861with an instrument inserted into a body lumen or cavity, e.g. a catheter
A61B 2218/002
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2218Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
001having means for irrigation and/or aspiration of substances to and/or from the surgical site
002Irrigation
Applicants
Inventors
Priority Data
14557613.05.1980US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A MULTIPOLAR ELECTROSURGICAL DEVICE
(FR) DISPOSITIF ELECTRO-CHIRURGICAL MULTIPOLAIRE
Abstract
(EN)
A multipolar electrosurgical device (22) for use in neurosurgery or through the channel of an endoscope or other precision surgery procedures. The device is formed with an insulative probe body (40), which, in the described embodiment, is sized to pass through a channel of an endoscope to enable the electrocoagulation of blood vessels such as may be needed in the treatment of a gastrointestinal ulcer. The probe body is provided with electrically separate conductors (46, 48) which are formed of a plurality of electrodes (46.1, 46.2, 46.3, 48.1, 48.2, 48.3) distributed over the peripheral surface of the probe body. A plurality of at least six electrodes which can form six bipolar electric fields are formed which in one embodiment are aligned longitudinally on the probe body. The electrodes extend onto the probe body's distal end to provide an omnidirectionally effective electrosurgical device. A central conductive wash channel (57) is provided for electrical connection to a set of electrodes at the distal end of the probe body while also providing a passage for fluid to enhance the visibility of the target area for subsequent precise electrocoagulation of the device. Several embodiments are shown and described.
(FR)
Un dispositif electro-chirurgical multipolaire (22) est utilise en neurochirurgie ou au travers du canal d'un endoscope ou autres procedes de chirurgie de precision. Le dispositif est forme d'un corps de sonde isolant (40) qui, dans le mode decrit de realisation, est dimensionne pour passer au travers d'un canal d'un endoscope pour permettre l'electro-coagulation des vaisseaux sanguins comme cela peut etre necessaire dans le traitement d'un ulcere gastro-intestinal. Le corps de la sonde est pourvu de conducteurs electriquement separes (46, 48) qui sont formes d'une pluralite d'electrodes (46.1, 46.2, 46.3, 48.1, 48.2, 48.3) distribuees sur la surface peripherique du corps de la sonde. Une pluralite d'au moins six electrodes qui peuvent former six champs electriques bipolaires sont formees qui, dans un mode de realisation, sont alignees longitudinalement sur le corps de la sonde. Les electrodes s'etendent sur l'extremite distale du corps de la sonde pour former un dispositif electro-chirurgical omnidirectionnel. Un canal de lavage conducteur central (57) est prevu pour la connexion electrique sur un ensemble d'electrodes a l'extremite distale du corps de la sonde tout en menageant un passage de fluide pour ameliorer la visibilite de la zone cible pour effectuer une electro-coagulation precise. Plusieurs modes de realisation sont illustres et decrits.
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