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1. (WO1995010978) SEGMENTED ELECTRODE ASSEMBLIES FOR ABLATION OF TISSUE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1995/010978 International Application No.: PCT/US1994/011758
Publication Date: 27.04.1995 International Filing Date: 14.10.1994
Chapter 2 Demand Filed: 07.04.1995
IPC:
A61B 17/00 (2006.01) ,A61B 18/14 (2006.01) ,A61N 1/05 (2006.01) ,A61N 1/40 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04
by heating
12
by passing a current through the tissue to be heated, e.g. high-frequency current
14
Probes or electrodes therefor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1
Electrotherapy; Circuits therefor
02
Details
04
Electrodes
05
for implantation or insertion into the body, e.g. heart electrode
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1
Electrotherapy; Circuits therefor
40
Applying electric fields by inductive or capacitive coupling
Applicants:
EP TECHNOLOGIES, INC. [US/US]; 350 Potrero Avenue Sunnyvale, CA 94086, US
Inventors:
FLEISCHMAN, Sidney, D.; US
SWANSON, David, K.; US
HOUSER, Russell, A.; US
AMIRANA, Omar; US
Agent:
HOHENFELDT, Ralph, G. ; 633 West Wisconsin Avenue Milwaukee, WI 53203, US
Priority Data:
08/139,30419.10.1993US
Title (EN) SEGMENTED ELECTRODE ASSEMBLIES FOR ABLATION OF TISSUE
(FR) DISPOSITIF D'ABLATION DE TISSUS PAR ELECTRODES SEGMENTEES
Abstract:
(EN) This invention is a multiple electrode array for ablating tissue that carries at least two electrode segments (26, 27, 28, 29) that are circumferentially spaced form each other. Insulation (30) electrically isolates the separated electrode segments from each other. Signal wires (19) attached to the separated electrode segments convey ablating energy independently to the separated electrode segments. Because of its segmented structure, the array can place only one of the electrode segments in contact with tissue at one time. Because each segment is electrically isolated, and because each segment is independently served by its own signal wire, a physician can operate an ablation energy generator to selectively channel the ablation energy only to the segment actually contacting the tissue.
(FR) L'invention concerne un dispositif constitué de plusieurs électrodes d'ablation des tissus. Le dispositif se compose d'au moins deux segments d'électrodes (26, 27, 28, 29) séparés l'un de l'autre dans le plan de la circonférence. Une isolation (30) garantit l'absence de continuité galvanique entre les segments d'électrode. Les fils conducteurs (19) aboutissent aux segments d'électrodes et délivrent séparément à chacun d'eux l'énergie nécessaire à l'ablation. La structure segmentée du dispositif empêche que plusieurs segments d'électrode entrent simultanément en contact avec le tissu. Chaque segment étant électriquement isolé et desservi par son propre conducteur de commande, le chirurgien peut agir sur le générateur produisant l'énergie d'ablation de façon à envoyer sélectivement l'énergie d'ablation vers le seul segment effectivement en contact avec le tissu.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)