Disinfection-free pneumatic turbine handpiece

Abstract

A disinfection-free pneumatic turbine handpiece comprises a handpiece assembly. A pneumatic turbine assembly comprises a turbine, bearings arranged at the upper end and the lower end of the turbine and a flexible blocking pad; the handpiece assembly is provided with a connecting portion, a handle assembly is connected to the back end of the connecting portion in an inserted mode, an air inlet hole and an air outlet hole are formed in the connecting portion, and an insertion groove is formed in the connecting portion; the handle assembly is provided with a convex portion inserted into the insertion groove of the handpiece assembly, and an air inlet channel and an air outlet channel which are connected with the air inlet hole and the air outlet hole in a butt-joint mode respectively are formed in the convex portion in a penetrating mode; the blocking pad is arranged between the convex portion and the bottom face of the insertion groove of the handpiece assembly and comprises a base body, the base body is provided with an air inlet blocking block and an air outlet blocking block, the area of the air inlet blocking block is larger than that of the air inlet channel and smaller than that of the air inlet hole, a notch is formed in the air outlet channel of the convex portion, and when the air outlet blocking block is impacted by flow-out air, the air outlet blocking block is flexibly bent to the notch to enable the air outlet hole to communicate with the air outlet channel. According to the disinfection-free pneumatic turbine handpiece, partial replacement of a pneumatic turbine handle is achieved, and iatrogenic infection at the handle is avoided.

Description

technical field [0001] The invention relates to a handpiece of a disposable pneumatic turbine handpiece. Background technique [0002] The repeated use of the pneumatic turbine handpiece will cause hospital-acquired infection to patients, which is very unsafe and hygienic. Disposable pneumatic turbine handpieces currently on the market are directly replaced by a whole set of handpieces, which is costly and wastes resources. During the use of the pneumatic turbine handpiece, there are two parts of the infected part, the machine head and the handle. At present, there is no air turbine handpiece that can directly replace the handpiece to avoid iatrogenic infection. Contents of the invention [0003] In order to overcome the disadvantages of high use cost and waste of resources of the prior art disposable pneumatic turbine handpiece, the present invention provides a disposable non-sterilized pneumatic turbine handpiece. [0004] The technical solution of the present inventio...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of high cost and waste of resources in the prior art disposable pneumatic turbine handpiece, the present invention provides a disposable non-sterilized pneumatic turbine handpiece

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