Since prevention and control of hospital-generated infections comprises one of the priorities in today's hospitals, the authors analyze how two infusion kits function; one kit is the classical version normally used in the hospital where this study took place and the other is a new kit which incorporates a security system. After carrying out a statistical and cost analysis, the authors conclude that the new perfusion system is cost effective, providing, among other factors, a savings of 62.083 Euro per hospitalized patient.