SECOND MILITARY MEDICAL UNIVERSITY OF THE PEOPLES LIBERATION ARMY
发明人:
SUN, Yinghao,孙颖浩
申请号：
CNCN2015/071175
公开号：
WO2016/008291A1
申请日:
2015.01.21
申请国别(地区):
WO
年份:
2016
代理人:
摘要：
A film-type ureter stone blockage extractor, which is provided with a hollow operating rod (1) that is opened at the proximal end and closed at the distal end. A blocking film (5) is provided on a distal section (12) of the operating rod (1). When in use, viewing from one end of the operating rod (1) to the other end thereof, the blocking film (5) constitutes a round blocking object. The distance from a free side (52) of the blocking film (5) to the distal end of the operating rod (1) is less than the distance from a fixed side (51) of the blocking film (5) to the proximal end (11) of the operating rod (1). A through hole (7) is also provided on the wall of the operating rod (1). A water flow flowing from a cavity of the operating rod (1) via the through hole (7) exerts a force on the inner wall of the blocking object (5). The ureteral stone blockage extractor is of a compact size, can be easily inserted into a ureter, does not push a stone in reverse towards a kidney and thus causing damages to the ureter wall, can completely block the ureter, effectively prevents any stone and stone fragments from being flushed back into the kidney by an injected water flow, is not prone to cases of stone impaction, does not deform easily or rub against the ureter wall during a stone extraction process, and can remove all stones in a single run, thus achieving the goal of efficient stone removal.Appareil dextraction de type membrane de calculs urétéraux dobstruction caractérisé par une tige dactionnement (1) creuse avec ouverture au niveau de lextrémité proximale et fermeture au niveau de lextrémité distale, la zone dextrémité distale de ladite tige dactionnement (1) présentant un film de blocage (5) formé dun matériau étanche de forme circulaire. Lors de son utilisation, on voit, depuis une extrémité de la tige dactionnement (1), lautre extrémité. La distance séparant le bord libre (52) du film de blocage (5) de lextrémité proximale de la tige dactionnement (1) est inférieure à l
