The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2020
Filed:
May. 31, 2017
Olympus Corporation, Hachioji-shi, Tokyo, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
A power supply apparatus is for a treatment instrument including a probe having electrical conductivity which vibrates, a grasping member that is opened and closed with respect to the probe and an electrode provided in the grasping member. The power supply apparatus supplies high-frequency power between the probe and the electrode. The power supply apparatus includes a resistance acquisition circuit which repeatedly acquires a resistance value of electrical resistance between the probe and the electrode, a condition determination circuit which acquires the number of times the resistance value satisfies a predetermined condition while the probe is vibrating and power is supplied between the probe and the electrode, and a determination circuit which determines whether or not the probe and the electrode are electrically short-circuited based on the number of times.