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1. WO1996039914 - SYSTEM AND METHOD FOR ELECTROSURGICAL CUTTING AND ABLATION

Publication Number WO/1996/039914
Publication Date 19.12.1996
International Application No. PCT/US1996/008077
International Filing Date 30.05.1996
Chapter 2 Demand Filed 02.01.1997
IPC
A61B 17/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
A61B 18/00 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
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
A61F 2/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
A61M 1/00 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
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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 18/12
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
A61B 18/1206
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
1206Generators 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 18/148
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
148having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
A61B 18/1482
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
1482having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
A61B 18/1485
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
1485having a short rigid shaft for accessing the inner body through natural openings
Applicants
  • ARTHROCARE CORPORATION [US]/[US]
Inventors
  • EGGERS, Philip, E.
  • THAPLIYAL, Hira, V.
Agents
  • RAFFLE, John, T.
Priority Data
08/485,21907.06.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR ELECTROSURGICAL CUTTING AND ABLATION
(FR) SYSTEME ET PROCEDE DE COUPE ET D'ABLATION CHIRURGICALES
Abstract
(EN)
An electrosurgical probe (10) comprises a shaft (13) having an electrode array (12) at its distal end and a connector (19) at its proximal end for coupling the electrode array to a high frequency power supply (28). The shaft includes a return electrode (55, 56) recessed from its distal end and enclosed within an insulating jacket (18). The return electrode defines an inner passage (83) electrically connected to both the return electrode and the electrode array for passage of an electrically conducting liquid (50). By applying high frequency voltage to the electrode array and the return electrode, the electrically conducting liquid generates a current flow path between the target site and the return electrode so that target tissue may be cut or ablated. The probe is particularly useful in dry environments, such as the mouth or abdominal cavity, because the electrically conducting liquid provides the necessary return current path between the return electrode and the target site.
(FR)
Sonde électrochirurgicale (10) comportant une tige (13), dont l'extrémité distale est pourvue d'un ensemble d'électrodes (12) et dont l'extrémité proximale est pourvue d'un connecteur (19) servant à brancher l'ensemble d'électrodes sur une alimentation en courant haute fréquence (28). La tige comprend une électrode de retour (55, 56) encastrée depuis son extrémité distale et enfermée dans une gaine isolante (18). Cette électrode de retour définit un passage intérieur (83) couplé électriquement à la fois à l'électrode de retour et à l'ensemble d'électrodes afin de laisser passer un liquide électroconducteur (50). Par application d'une tension haute fréquence à l'ensemble d'électrodes et à l'électrode de retour, le liquide électroconducteur produit un trajet de courant entre le site ciblé et l'électrode de retour, de manière à pouvoir couper le tissu ciblé ou à en pratiquer l'ablation. La sonde est particulièrement utile dans des milieux secs, tels que la bouche ou la cavité abdominale, étant donné que le liquide électroconducteur produit le trajet nécessaire de courant de retour entre l'électrode de retour et le site ciblé.
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