Micro tooth body preparation automatic cutting device in laser-type oral cavity

Abstract

The invention discloses a micro tooth body preparation automatic cutting device in a laser-type oral cavity. The device comprises a motor driving component (1), an optical path component (2) and a shell component (3), wherein the optical path component (2) implements the optical path conversion by adopting a vibrating mirror (24), a convex lens (25) and a reflection mirror (26); through controlling the rotation of two degree-of-freedoms of the vibrating mirror (24) and the movement of one degree-of-freedom of the convex lens (25), the movement of three degree-of-freedoms of a laser focus light spot relative to a cut tooth can be realized, the optical structure principle is simple, optical elements are in space linear distribution, and occupy a small space, which is beneficial to the miniaturization of the whole device; the motor driving component (1) adopts the matching of a linear motor and a guide rod, on one hand, a spherical surface decoupling mechanism (21) is driven, thus the vibrating mirror (24) completes the rotation of two degree-of-freedoms, on the other hand, a convex lens frame (23) is driven, thus the convex lens (25) completes the rotation of one degree-of-freedom. The device has no noise in cutting process, and has little damage to the tooth near tissue, the tooth surface is smooth after cutting, and the microscopic feature is good.

Description

technical field [0001] The invention relates to a cutting device for teeth, more particularly, refers to an automatic cutting device for miniature tooth body preparation in the oral cavity by cutting off tooth lesions by laser. Background technique [0002] In dental treatment, it is sometimes necessary to cut semi-hard layers such as dentin formed on tooth surfaces and in root canals, and to cut such layers, a rotary-driven cutting tool—a dental handpiece—is used. [0003] There are a variety of handpieces for rotating tools. Turbine-powered handpieces are widely used in dental offices and medical laboratories around the world. Most cell phones include a handle portion, a connector at one end of the handle portion, and a tool carrying the drive head at the other end. The connectors provide the connection of the handset to various air, water, light and electricity supply lines, which are usually combined in a so-called umbilical cord. The drive head houses the tool rotati...

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Problems solved by technology

During work, surgical instruments produce loud noises, causing discomfort and tension to patients

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