Dental nerve broach

Abstract

The invention discloses a dental nerve broach, belongs to a medical instrument, and solves the problems that the rotary angle of the nerve broach is small, the adjusting amplitude is large, the nerve broach easily damages an oral cavity and / or burrs at a needle tip easily stab the oral cavity and the inner wall of a dental pulp cavity. The dental nerve broach comprises a needle wire, a needle sleeve and a screw cap; an arc-shaped needle tip is arranged at one end of the needle wire; a burr region is arranged at the front end of the needle tip; a thread is arranged at the other end of the needle wire; after the needle sleeve is sleeved in a burr region of the needle wire, the front part of the needle sleeve is clamped with the needle wire; the screw cap and the thread on the needle wire are matched to lock the needle wire and the needle sleeve. Burr tips of the burrs of the burr region are concave toward the inner side. According to the nerve broach disclosed by the utility model, the needle tip can rotate for 360 degrees; the dental nerve broach is simple and accurate to operate, has small damages to the oral cavity and is safer to use.

Description

technical field [0001] The invention belongs to medical appliances, and in particular relates to a dental pulp extraction needle. Background technique [0002] At present, in the process of treating pulpitis and root inflammation, it is necessary to use a pulp extraction needle to remove degenerated and necrotic pulp tissue in the root canal or to remove the cotton twist left in the root canal. Straight pulp extraction needles need to be constantly adjusted to follow the direction of the root canal during use. If the angle of the pulp extraction needle is not adjusted properly, it will lead to residual pulp tissue and affect the effect of root canal treatment. In this regard, the Chinese patent ZL201120336202.5 new dental pulp extraction needle improves the straight type pulp extraction needle. The pulp extraction needle mainly includes a needle body and a needle point. One end of the needle body is provided with a needle point. For connection, there are burrs on the needle...

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is that in the prior art, the rotation angle of the pulp extraction needle is small, the adjustment range is large, and the oral cavity is easily damaged and / or the burr at the needle tip is easy to stab the inner wall of the oral cavity and the pulp cavity.

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