Abstract: This is a medical device useful for removing fluids from body cavities. A flexible catheter is attached to a stabilizing base with a collar forming a vestibule on the opposite side of the base. The vestibule is sealed with a stopper or diaphragm. A needle is inserted through the stopper, into the diaphragm, through a central hole in the base and through the lumen of the catheter and out the terminal hole of the catheter. After insertion into the body, the needle is withdrawn leaving the catheter and base in place for drainage. The unit is a self sealing structure to prevent introduction of contamination of ambient air.