US 12,290,276 B2
Medical device, control method, and computer-readable storage medium
Kizuku Inaba, Tokyo (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Mar. 17, 2021, as Appl. No. 17/204,348.
Application 17/204,348 is a continuation of application No. PCT/JP2018/034668, filed on Sep. 19, 2018.
Prior Publication US 2021/0196308 A1, Jul. 1, 2021
Int. Cl. A61B 17/32 (2006.01); A61B 18/14 (2006.01)
CPC A61B 17/320092 (2013.01) [A61B 2017/320082 (2017.08); A61B 2017/320095 (2017.08); A61B 18/1442 (2013.01); A61B 18/1445 (2013.01); A61B 18/1447 (2013.01); A61B 2018/145 (2013.01); A61B 2018/146 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical device comprising:
a high-frequency power supply configured to output a high-frequency signal to an end effector, the end effector being configured to apply high-frequency energy to treat a biological tissue;
a first detection circuit configured to detect a first index value of an output state of the high-frequency signal;
a second detection circuit configured to detect a second index value of a mechanical load applied to the end effector; and
a processor configured to execute a first mode to reduce an output value of the high-frequency signal when a fluctuation of the first index value detected by the first detection circuit occurs and then a fluctuation of the second index value detected by the second detection circuit occurs within a predetermined time period, wherein the predetermined time period is a time from when the fluctuation of the first index value occurs until 3 ms-10 ms has elapsed, wherein:
the high-frequency power supply includes:
a power supply main body configured to output power; and
an output circuit configured to output the high-frequency signal by converting the power output from the power supply main body, and
the first detection circuit is configured to detect a voltage of the power supply main body as the first index value.