5R MED TECHNOLOGY (CHENGDU) CO., LTD; LTD;5R MED TECHNOLOGY (CHENGDU) CO.;成都五义医疗科技有限公司
发明人:
ZHU, Moshu,朱莫恕
申请号:
CNCN2018/089176
公开号:
WO2018/219314A1
申请日:
2018.05.31
申请国别(地区):
CN
年份:
2018
代理人:
摘要:
Disclosed is a cannula assembly with a movable and expandable balloon, the cannula assembly comprising a first sealing assembly and a second sealing assembly, wherein the second sealing assembly comprises a lower housing and a hollow cannula connected thereto and extending towards a distal end thereof, the first sealing assembly, the second sealing assembly and the hollow cannula comprise instrument passages communicated and substantially aligned with each other, and the hollow cannula comprises an inner cylindrical surface, an outer cylindrical surface and a cannula wall therebetween; the distal end of the hollow cannula further comprises an open cannula lip; the cannula assembly further comprises an inflatable and expandable balloon assembly, a one-way valve assembly for inflating and deflating same, and a gas flow passage communicating the balloon assembly and the one-way valve assembly; the balloon assembly comprises a balloon lip and a balloon body connected thereto; and the balloon assembly further comprises a movable mechanism, and when the cannula assembly is inserted or removed, the movable mechanism is operated to move from a distal end to a proximal end thereof, such that the balloon body is stretched from a free state into a flat and straight state.L'invention concerne un ensemble canule avec un ballonnet mobile et expansible, l'ensemble canule comprenant un premier ensemble d'étanchéité et un second ensemble d'étanchéité, le second ensemble d'étanchéité comprenant un boîtier inférieur et une canule creuse reliée à celui-ci et s'étendant vers une extrémité distale de celui-ci, le premier ensemble d'étanchéité, le second ensemble d'étanchéité et la canule creuse comprenant des passages d'instrument communiquant et sensiblement alignés les uns avec les autres, et la canule creuse comprenant une surface cylindrique interne, une surface cylindrique externe et une paroi de canule entre celles-ci ; l'extrémité distale de la canule creuse comprend en outre une