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:
Oct. 22, 2024
Filed:
Feb. 25, 2021
Olympus Corporation, Hachioji, JP;
Tsunetaka Akagane, Hachioji-shi, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
An ultrasound transducer includes a transducer body configured to generate ultrasound vibration to vibrate a treatment portion that treats a living tissue. The transducer body includes a plurality of piezoelectric elements configured to alternately repeat expansion and contraction according to a supplied drive signal. The plurality of piezoelectric elements are integrally fastened in a state where the plurality of piezoelectric elements are stacked along a direction of expansion and contraction. The plurality of piezoelectric elements include a first piezoelectric element configured to expand at a first timing and contract at a second timing, and a second piezoelectric element whose expansion and contraction timings are different from expansion and contraction timings of the first piezoelectric element. The second piezoelectric element is arranged so that a polarization direction of the second piezoelectric element is a same as a polarization direction of an adjacent piezoelectric element.