The Space Station Health Maintenance Facility (HMF) is required to provide “critical care” capability for one crewmember for 28 days and to provide “outpatient” monitoring and care for the Space Station crew complement for the mission duration. The equipment necessary to meet these requirements has been defined and an estimate of the physical characteristics of each piece of equipment has been completed. The equipment has been integrated into two Space Station standard outfitting packages, one which contains the laboratory and data management equipment and one which holds the critical care equipment and X-ray reader. The front panel configuration has been designed for optimum crew interface. The total system weight, volume and power requirements have been estimated at 1400 lbs, 110 cubic feet, and 0.5/2 kilowatts (routine/critical care). The HMF Medical Data Management System hardware and architecture has been designed to complement the Space Station Data Management System.