M.i.tech Co., Ltd.

In-Kwon Jung

Sung-Soon An

Hun-Kuk Park

A stent includes a cylindrical main body contractible and expandable in a circumferential direction, a cover member coated on inner and/or outer circumference of the main body, and an inverse current preventing member for preventing food or fluid from reversely flowing. The inverse current preventing member is disposed in the main body and includes a fixing layer defining a passage having a diameter capable of allowing food and fluid to pass, the fixing layer being fixed in the main body and a valve layer extending from the fixing layer to a distal end of the main body.

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Pyongtaek, South Korea

In-Kwon Jung