 The NO-NUMOTM High Vacuum Body Cavity Drainage System consist of; 1 disposable NO-NUMOTM body cavity drainage tubes, 2 disposable VarioTM fluid management canisters and 3 VarioTM portable vacuum pump. We evaluated this new system, using a 13Fr triple-tube set for the mediastinal drainage, a 13Fr single-tube for the left pleural drainage and two 13Fr NO-NUMO tubes for the drainage of the lower extremity subcutaneous wounds following the harvesting of the saphenous veins. The tubing was connected to a disposable liner of a Medi-VacTM Cardinal Health, Inc. suction canisters, which was connected to a Vario pump at 300 torr 40 kPa in patients following open heart surgeries. 