| 摘要 |
A cannula device is disclosed. A cannula device of the present invention comprises: a cannula unit; a trocar unit prepared with a trocar for making a hole on a surgical region by penetrating through the inside of the cannula unit; and a sealing unit for sealing blood which flows backward by being arranged between the cannula unit and the trocar unit. The sealing unit includes a plurality of sealing members arranged with incision holes through which the trocar is penetrated. The incision holes are arranged to cross each other. |
