43 metastatic cancer patients received 190 portable infusors over 24 hours or more. This portable infusor is a disposable material made by Travenol which operates without outside energy. The drug in an elastomere balloon reservoir is injected about 24 hours at a rate of 2 ml/hour. We used various drugs: CDDP, bleomycin, 5 fluorouracil, aracytine, velbe, voltarene. The patients were under hospital observation and received their treatment without any incident due to the pump itself. The patients who had already been perfused with the usual technique greatly appreciated the comfort of this light portable device. Our next step will permit us to estimate the use of these infusors by patients at home.