a plug is used to plug the end of a drain tube . the drain tube is introduced into a patient during a medical procedure to drain the surgical site . the drain tube is introduced through an opening or incision in the patient leading to the interior of the patient &# 39 ; s body . a medical instrument is used to extract the drain tube out through the opening in the patient &# 39 ; s body . the plug includes an elongated insertion section of a cross - sectional size for slidable insertion into the end of the drain tube . the plug also includes a grasping section projecting longitudinally from the insertion section and conveniently graspable by the medical instrument . the grasping section includes a tip portion opposite the insertion section , and a base portion located between the tip and the insertion section . the cross - sectional size of the base portion is greater than the cross - sectional size of the tip portion , wherein the cross - sectional size of the grasping section decreases in a direction extending away from the insertion section .