公开(公告)号：US20220134067A1

公开(公告)日：2022-05-05

申请号：US17576080

申请日：2022-01-14

申请人： Micro-Tech (Nanjing) Co., Ltd.

发明人： Derong LENG ,  Yuqian LI ,  Yimin SUN ,  Yidong SUN ,  Changqing LI ,  Ning LI ,  Chunjun LIU

IPC分类号： A61M27/00 ,  A61F2/95

摘要： A medical drainage stent that includes a stent body, and a proximal portion and a distal portion that are located at two ends of the stent body for connecting a first tissue wall and a second tissue wall in a juxtaposing manner. The stent body is fixed between the first tissue wall and the second tissue wall to provide a drainage channel. The proximal portion of the stent has N extension portions, where a fixed end of the extension portion is fixedly connected with an edge of a proximal end of the stent body, and the other end of the extension portion is a free end in a free state. Structures of the N extension portions at least partially protrude from the stent body in a radial direction, so that the proximal portion of the stent is fixed on the first tissue wall, where N is a positive integer.