Patent ID: 9289260
Filing Date: 2016-03-22
CPC Classification: A61B

Claim Text:
1. A method for controlling a microwave surgical device having an oscillator, a coaxial cable supplied with a microwave energy from said oscillator, a first surgical electrode and a second surgical electrode pivotally connected that are connected to said coaxial cable to apply a microwave energy to tissue, a battery or constant voltage power supply, and a microwave/direct current mixer connected to said coaxial cable comprising: contacting a tissue to be coagulated by the first surgical electrode and the second surgical electrode; irradiating the tissue with microwave energy by the first surgical electrode and the second surgical electrode; supplying a direct current voltage to the tissue so as to provide a direct current electric resistance value in the tissue by the first surgical electrode and the second surgical electrode; and detecting completion of the coagulation of the tissue by detecting a change in the direct current electric resistance value in the tissue due to reduction in an amount of water in the tissue as temperature in the tissue rises from irradiating the tissue with the microwave energy, and wherein the direct current voltage is supplied from the battery or constant voltage power supply through the microwave/direct current mixer, and the microwave energy is supplied from the oscillator.