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1. (WO1995019148) APPARATUS AND METHOD FOR VENOUS LIGATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1995/019148 International Application No.: PCT/US1995/000674
Publication Date: 20.07.1995 International Filing Date: 18.01.1995
Chapter 2 Demand Filed: 09.08.1995
IPC:
A61B 17/00 (2006.01) ,A61B 17/22 (2006.01) ,A61B 17/32 (2006.01) ,A61B 17/42 (2006.01) ,A61B 18/00 (2006.01) ,A61B 18/04 (2006.01) ,A61B 18/12 (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
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
17
Surgical instruments, devices or methods, e.g. tourniquets
32
Surgical cutting instruments
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
42
Gynaecological or obstetrical instruments or methods
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
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
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:
ENDOVASCULAR, INC. [US/US]; 3180 Pullman Street Costa Mesa, CA 92626, US
Inventors:
KICK, George, F.; US
COHEN, Donald; US
DAW, Derek, J.; US
ACOSTA, George, M.; US
Agent:
ROGITZ, John, L.; Rogitz & Associates Suite 3120 750 "B" Street San Diego, CA 92101, US
Priority Data:
08/183,99418.01.1994US
08/215,93222.03.1994US
Title (EN) APPARATUS AND METHOD FOR VENOUS LIGATION
(FR) APPAREIL ET PROCEDE DE LIGATURE VEINEUSE
Abstract:
(EN) A minimally-invasive surgery apparatus (10) for causing the lumen of a vein to collapse to prevent blood flow through the vein, e.g., a varicose vein or a side branch of the saphenous vein, includes an electrode (20) which is electrically connected to a power source (14), and the electrode (20) is percutaneously advanced into the vein. Then, the power source (14) is activated to energize the electrode (20) and thus the blood vein until the blood vein sufficiently collapses to block the lumen of the vein. A feedback loop including a microprocessor (44) is also provided for sensing electrical impedance of the tissue within the vein being energized and for deenergizing the electrode (20) when the impedance reaches a predetermined value. The apparatus (10) can also be used to block a fallopian tube.
(FR) Un appareil chirurgical (10) faiblement sanglant servant à provoquer l'affaissement de la lumière d'une veine, de façon à empêcher l'écoulement du sang à travers la veine, par exemple une veine variqueuse ou une branche latérale de la veine saphène, comprend une électrode (20) reliée électriquement à une source d'énergie (14) et que l'on fait avancer dans la veine par voie percutanée. On active ensuite la source d'énergie (14), afin d'exciter l'électrode (20) et, par conséquent, la veine jusqu'à son affaissement suffisant pour bloquer sa lumière. Une boucle de retour comprenant un microprocesseur (44) sert à détecter l'impédance électrique du tissu à l'intérieur de la veine excitée, ainsi qu'à arrêter l'excitation de l'éléctrode (20) quand l'impédance atteint une valeur prédéterminée. On peut également utiliser l'appareil (10) pour bloquer une trompe utérine.
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)
Also published as:
EP0740533JPH09507645 CA2181453