Nakanishi Inc.

Tomohiro Sakanushi

Shinichi Tanaka

Masaki Nakagawa

Kohei Sekizuka

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.

Dental handpiece and dental handpiece with cleaning adapter

A liquid tank capable of preventing a gas passage from being clogged and a dental device including this liquid tank are provided. A liquid tank having an accommodation space in which a liquid L to be supplied to outside is accommodated includes a tank body having a mouth part with an opening, a cap mounted on the mouth part to close the opening, a liquid passage through which the liquid L in the liquid tank flows toward outside, a gas passage having a gap between the mouth part and the cap and a path communicatively connecting to the gap and the accommodation space, a liquid flow valve provided on the liquid passage to allow or inhibit a flow of the liquid L to outside, and an aeration valve provided on the gas passage to compensate for a negative pressure occurring in the accommodation space.

Growing community of inventors

Tochigi, Japan

Tomohiro Sakanushi