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1. (WO1997018767) BIPOLAR ELECTROCAUTERY VALVULOTOME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018767 International Application No.: PCT/US1996/018278
Publication Date: 29.05.1997 International Filing Date: 21.11.1996
Chapter 2 Demand Filed: 27.05.1997
IPC:
A61B 17/22 (2006.01) ,A61B 18/00 (2006.01) ,A61B 18/14 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
22
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
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
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
Applicants:
THE JOHNS-HOPKINS UNIVERSITY [US/US]; 3400 N. Charles Street Baltimore, MD 21818, US
Inventors:
KITTUR, Dilip, S.; US
PETRONIS, John; US
Agent:
LESTER, Michelle, N. ; Cushman Darby & Cushman Intellectual Property Group Pillsbury Madison & Sutro 1100 New York Avenue, N.W. Washington, DC 20005, US
Priority Data:
08/562,09022.11.1995US
60/008,87619.12.1995US
Title (EN) BIPOLAR ELECTROCAUTERY VALVULOTOME
(FR) VALVULOTOME D'ELECTROCAUTERISATION BIPOLAIRE
Abstract:
(EN) This invention is a bipolar electrocautery valvulotome (10) in the form of an elongated catheter (12) having a longitudinal axis, a proximal end for being held and manipulated by a user, and a distal end. A first electrode (14) is provided adjacent the distal end of a main body of the catheter and has an exposed surface facing distally of the catheter. The first electrode is electrically coupled to a device (18) for generating a current. A second electrode (24) is disposed distally of the first electrode and is also electrically coupled to the current generating device. The second electrode has an exposed surface in a plane substantially perpendicular to the longitudinal axis of the catheter. At least one of the first and second electrodes is movable relative to the other so as to selectively capture a venous valve structure to be cauterized therebetween.
(FR) L'invention concerne un valvulotome d'électrocautérisation bipolaire (10) constitué d'un cathéter allongé (12) présentant un axe longitudinal, une extrémité proximale destinée à être tenue et manipulée par un utilisateur, et une extrémité distale. Une première électrode (14) adjacente à l'extrémité distale du corps principal du cathéter, laquelle présente une surface exposée tournée vers l'extrémité distale du cathéter, est couplée électriquement à un dispositif (18) générateur de courant. Une seconde électrode (24), disposée à distance de la première électrode, est elle aussi couplée électriquement au dispositif générateur de courant et présente une surface exposée située dans un plan sensiblement perpendiculaire à l'axe longitudinal du cathéter. La première ou la seconde électrode ou les deux peuvent être déplacées l'une par rapport à l'autre de façon à capturer sélectivement entre elles la structure valvulaire veineuse que l'on veut cautériser.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1997010762