The cooperation of a system of human organ transplants is a difficult task that considers clinical, legal, organizational and human aspects inside a complex environment of distributed hospitals and government organizations. Due to the application of a groupware using multi-agent systems becomes a real possibility for process optimization. In this paper we analyze the problems and methodology of a communication system for the network of transplants. Subsequently, we present an application developed on AYLLU, a framework that allows the generation of cooperative services for human interaction, which models the cooperation presented in various stages of organ transplantation.