MEDICAL DEVICE SYSTEM INCLUDING INFORMATION TECHNOLOGY INFRASTRUCTURE HAVING SECURE CLUSTER DOMAIN SUPPORTING EXTERNAL DOMAIN

A medical device information technology (“IT”) data transfer system in one embodiment includes a cluster domain, an external domain and an interface domain. Equipment belonging to the cluster domain may communicate in real time such that availability, safety, security, reliable integrity and performance are guaranteed. The external domain includes equipment not enabled for direct inclusion in the cluster domain, and may include equipment for external information systems, presentation equipment, personal computer equipment, shared medical equipment and bedside medical equipment. The interface domain enables external domain equipment to communicate with cluster equipment in a bidirectional manner. Communication may be via certain access nodes in the cluster. The access nodes enable exchange of information between the open external domain and the closed and private cluster domain.