This article describes the problematic of ambulance service for chronic patients, that need a preferential care; supporting the improvement in pre-hospital assistance, executed at the moment of the emergency. Based on the above, technology surveillance is used as a tool to find feasible options, bringing up an architecture oriented to services that allows an easier communication between systems through a mobile platform; with this, the patient will be able to sign in, to register, to report, to inform, to connect immediately with his health care provider, generating an alarm and an emergency call to an ambulance, proportioning the necessary data for getting the attention as quick as possible and efficiently.