Patent ID: 7827148

Claim:
A medical equipment comprising: a log generating unit which generates a log concerning an operation dealing with patient information and an operation of the medical equipment, the log including an information of an operator that operates the medical equipment, a time of the operation of the medical equipment, and content of the operation of the medical equipment; and a log management unit which determines an execution timing of log target processing as processing which uses the log and substantially gives a high load to the medical equipment based on an operation state of the medical equipment, and executes the log target processing at the determined timing, wherein the log target processing includes compression processing of compressing the log concerning the operation dealing with patient information and the operation of the medical equipment to generate a compressed log; a storage unit which stores the compressed log generated by the log generating unit, and wherein the log management unit determines the execution timing of the log target processing based on one of: interruption of a diagnostic operation, termination of a diagnostic operation, CPU operating status, CPU use ratio, memory use status, memory use ratio, a number of activation processes in the system, a local disk remaining capacity, a status of access to the local disk, a number of audit log files, a number of compressed audit log files, presence/absence of an audit log file in a compression process, a date has been changed, a week has been changed, a month has been changed, the apparatus has entered a standby state, the apparatus has entered a pause state, the apparatus has been shut down.