OVERHEAD SENSOR CLUSTER Surgical procedures and other intensive-care procedures are accomplished at the primary biobed, located at the center of each sickbay ward or surgical suite. Above this biobed is an overhead cluster of diagnostic and biofunction sensors. This array also incorporates a low level forcefield generator that can be used to reduce the chance of potentially harmful microorganisms entering or leaving the biobed area. Note that this forcefield is of relatively limited utility and is not adequate to maintain a totally sterile environment sufficient for surgical procedures or to satisfy biohazard protocols. Æ