High-speed turbine handpiece

Abstract

The invention relates to the technical field of medical instruments, and provides a high-speed turbine handpiece. Comprising a machine handle and a machine head assembly, and the machine head assembly is installed at the front end of the machine handle; wherein a machine needle is clamped and mounted in a machine head shell of the machine head assembly; a machine head cover is installed at the end, close to the machine handle, of the machine head shell, a nozzle sleeve is installed on the inner side end face, away from the machine handle, of the machine head cover, and a gas flowing cavity is formed by the arc-shaped side wall and the bottom protruding edge of the nozzle sleeve, the inner wall of the machine head shell and the inner side end face of the machine head cover. More than two vent holes are formed in the arc-shaped side wall of the nozzle sleeve, high-pressure gas in the gas flowing cavity drives the turbine to rotate through the more than two vent holes, and at least one vent hole always provides the maximum torque for the turbine. The invention has the beneficial effects that after the bur is mounted, the central axis of the bur and the central axis of the machine handle form a certain included angle, so that a doctor can conveniently drill, grind, cut and other complex operations on teeth of a patient, and the sight of the doctor cannot be blocked.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a high-speed turbine handpiece. Background technique [0002] At present, most of the high-speed mobile phones on the market are of a fixed connection type between the head and the handle, and the angle cannot be adjusted. Conventionally, the head and the handle are at 90°. However, the location of oral diseases is not the same for everyone. Some teeth that need to be drilled, ground, and cut are difficult to operate with conventional mobile phones, and they block the dentist's sight. Very awkward posture to barely complete. In the process of oral treatment, due to the different treatment positions, the angle between the head and the handle of the high-speed handpiece will affect the treatment. [0003] In addition, the existing mobile phones mainly have the following defects: [0004] (1) The mobile phone is usually electric, and the speed and torque cannot meet the r...

AI Technical Summary

Problems solved by technology

[0004] (1) Mobile phones are usually electric, and the speed and torque cannot meet the requirements, which cannot meet the needs of cutting and grinding teeth

[0005] (2) The water channel is arranged inside the handle and head, which increases the size of the handle and head, and virtually reduces the operable space in the patient's mouth

[0006] (3) Traditional mobile phones are caused by the negative pressure formed when the airflow pushes the turbine and stops instantaneously. suck

[0007] (4) When the bur is not reliably installed, the bur is prone to fall off after the mobile phone is turned on, causing damage to the patient's oral cavity

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