Patent ID: 9566106
Date: 2017-02-14
CPC Classifications: A61B

Claim:
1. A surgical apparatus comprising: a treatment section for treating a living tissue; an energy generation section for providing high-frequency current to the treatment section; a liquid feeding conduit for feeding a liquid to the living tissue; a suction conduit for suctioning the liquid; an energy control section configured to output a high-frequency output control signal for controlling the high-frequency current from the energy generation section; a first pump drive section configured for feeding the liquid from the liquid feeding conduit while the high-frequency current is output in response to a command for an output of the high-frequency output control signal from the energy control section, and configured to stop the feeding of the liquid from the liquid feeding, conduit when the first pump drive section receives a command for stopping the high-frequency output control signal, wherein the first pump drive section causes the feeding of the liquid from the liquid feeding conduit to terminate simultaneously with stopping the high-frequency output control signal; a second pump drive section configured to cause the suction conduit to suction the liquid for a predetermined period of time or in a predetermined amount, only after the second pump drive section receives the command for stopping the high-frequency output control signal from the energy control section, and configured to stop the suction of the liquid from the suction conduit after suctioning for the predetermined period of time or in the predetermined amount; and an impedance detection section configured to detect an impedance between two pinching members of the treatment section that are configured to pinch the living tissue, wherein the predetermined period of time or the predetermined amount is configured to vary according to the impedance detected by the impedance detection section.