High-frequency operation apparatus for controlling high-frequency output based on change with time of an electrical parameter

摘要

A high-frequency operation apparatus comprises a high-frequency energy generating section (3) that generates and outputs high-frequency energy to be used for treating an object tissue (13). A parameter monitoring section (9) monitors the change with time of an electrical parameter indicting the condition of the object tissue (13) when the high-frequency energy output from the high-frequency energy generating section(3) is supplied to the object tissue (13) and a control section (8) controls the output of the high-frequency energy according to the outcome of the monitoring by the parameter monitoring section (9).