Catheter plug

Abstract

Catheter plug, which consists of a rotationally symmetrical plug element (1) and a rotationally symmetrical closing element (2), the outer surface of the plug element (1) is at least partially conical and the plug element contains a permeable cavity (5) open from both ends, characterized in that the closing element (2) is provided with a sampling window (3) and fits tightly into the cavity of the plug element (1) with the outer shell of the closing element (2).