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.

Date of Patent:
Apr. 29, 2025

Filed:

Jul. 11, 2022
Applicant:

Nakanishi Inc., Kanuma, JP;

Inventors:

Shinichi Tanaka, Kanuma, JP;

Tomohiro Sakanushi, Kanuma, JP;

Kohei Sekizuka, Kanuma, JP;

Assignee:

NAKANISHI INC., Kanuma, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C 17/22 (2005.12); A61C 17/02 (2005.12); A61C 17/20 (2005.12);
U.S. Cl.
CPC ...
A61C 17/225 (2012.12); A61C 17/02 (2012.12); A61C 17/20 (2012.12);
Abstract

A dental handpiece includes a cylindrical outer body, an insert body that includes an ultrasonic vibrator, and is accommodated in the outer body, a front end portion of the insert body and a rear end portion of the insert body, a tip connection portion that detachably holds a scale tip to which ultrasonic vibration from the ultrasonic vibrator is transmitted, and a cleaning liquid flow path that guides a cleaning liquid supplied from a cleaning liquid injection port of the insert body to a front end portion of the outer body. The cleaning liquid flow path includes an immersion flow path in which the insert body is immersed in the cleaning liquid in the outer body and the cleaning liquid in which the insert body is immersed is discharged from the front end portion of the outer body.


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