US 12,274,466 B2
Medical device and method for controlling the same including discriminating end-of-cut conditions based on temperature
Sadayoshi Takami, Hachioji (JP); Kotaro Nakamura, Sagamihara (JP); Toshifumi Katsuragi, Hachioji (JP); Gen Kato, Hachioji (JP); Shohei Moriwaki, Akishima (JP); and Shunsuke Matsui, Hachioji (JP)
Assigned to Olympus Medical Systems Corp., Tokyo (JP)
Filed by OLYMPUS MEDICAL SYSTEMS CORP., Tokyo (JP)
Filed on Dec. 7, 2021, as Appl. No. 17/544,295.
Claims priority of provisional application 63/153,548, filed on Feb. 25, 2021.
Prior Publication US 2022/0265303 A1, Aug. 25, 2022
Int. Cl. A61B 17/32 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/320068 (2013.01) [A61B 2017/0003 (2013.01); A61B 2017/00084 (2013.01); A61B 2017/320082 (2017.08); A61B 2090/064 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A method of operating a medical device for ultrasonic treatment, the method comprising:
controlling a supply of an electric energy to an ultrasonic instrument having a vibration transmission member that vibrates ultrasonically;
obtaining a temperature value, wherein the temperature value is a temperature increase rate of the vibration transmission member per unit time;
detecting a first peak at which the temperature increase rate changes from generally increasing to generally decreasing; and
controlling a power source to reduce or stop the supply of the electric energy to the ultrasonic instrument if a period in which the temperature increase rate decreases after the first peak is longer than a threshold value, wherein the power source is configured to supply the electric energy to the ultrasonic instrument.