公开(公告)号：US10433931B2

公开(公告)日：2019-10-08

申请号：US14772612

申请日：2014-03-05

申请人： NAKANISHI INC.

发明人： Chihiro Yamane ,  Shouichi Takamori ,  Tetsuji Suzuki ,  Kiyoshi Kawakubo

IPC分类号： A61C3/00 ,  A61C3/025 ,  A61C17/02 ,  B05B1/26 ,  B24C5/04 ,  A61C1/08 ,  A61C17/022

摘要： A nozzle for a dental handpiece having a connector portion to be connected to a handpiece body, and a nozzle body, which is provided near its end with a notch of a substantially rectangular section cut out from the front face into the lateral faces, the notch forming upstream and downstream faces. The nozzle has a channel and an injection port thereof for transferring the mixture and a channel and an injection port thereof for transferring water, separate from each other. The channel for the mixture extends through the nozzle body along the front face from the connector portion to near the end, with the injection port for the mixture opened in the upstream face. With this nozzle, the mixture is properly injected onto a treatment site in subgingival treatment, while the mixture injected subgingivally is efficiently discharged supragingivally, to improve work efficiency in dental treatment.