abdomen retractor JB multi-functional operation retractor(one set ) The rail is unconnected; used in the upper abdomen; liver transplantation. This retractor is suitable total gastrectomy, hepatectomy, splenectomy and devascularization operation. After the retractor is fixed, abdominal walls will be drew to three directions of left, middle and right, the rail also can be divided into two sections which drew either side of abdominal wall, and unilateral retractor is enough to be fixed if demanding of drawing one side of abdominal wall.