Root canal internal negative pressure drainage apparatus

Abstract

The invention provides a root canal internal negative pressure drainage apparatus. The root canal internal negative pressure drainage apparatus comprises a negative pressure drainage pipe for connecting an external negative pressure suction apparatus, a suction needle for being inserted into a root canal, and a latex soft plug for sealing a medullary space; the negative pressure drainage pipe comprises a pipe tail, a pipe body and a pipe orifice which are successively fixedly connected with one another in the axial direction; the suction needle comprises a needle seat and a hollow suction needle, the front end of the suction needle is provided with a needle opening, the rear end of the suction needle is inserted into the needle seat, the middle portion of the suction needle is bent, and abent angle is 110 to 170 degrees; the inner sides of the pipe orifice of the negative pressure drainage pipe is provided with threads, the outer side of the needle seat of the suction needle is provided with symmetric wing buckles, the wing buckles are axially fixedly connected with the threads in the pipe orifice in a buckling manner, so that the negative pressure drainage pipe can be detachablyconnected with the suction needle; and the pipe tail is connected with a suction pipeline on the external negative pressure suction apparatus, the negative pressure generated by the external negativepressure suction apparatus sucks out and drains the liquid in the root canal by virtue of the negative pressure drainage pipe and the suction needle.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a root canal negative pressure drainage device. Background technique [0002] With the widespread development of root canal therapy, the common disease of pulp and periapical disease has been thoroughly and effectively treated. However, in the process of root canal treatment, regardless of whether multiple or one-time root canal filling is used, it is necessary to ensure that the affected tooth has the filling index of conventional requirements. In fact, according to relevant data reports, pain during root canal treatment often leads to delay in treatment and increased number of visits to the doctor. In severe cases, it is also accompanied by soft tissue swelling, with an incidence of 8% to 31%. Acute symptoms caused by discharge or pus not draining from the root canal in a timely manner may be more frequent than reported. Therefore, how to reduce the acute symptoms of patients i...

AI Technical Summary

Problems solved by technology

In the process of conventional root canal expansion, although part of the apical exudate or pus can be drained into the medullary cavity through the expanded apical foramen, it may also drain bacteria or debris in the medullary cavity. It is reported that the incidence of grade III pain after root canal preparation is about 3% to 25%.

In addition, conventional open drainage is passive drainage, combined with the characteristics that the root canals of the posterior teeth are smaller, more curved, and more variable than the anterior teeth, it is easy to cause poor drainage or secondary embolism, thus failing to achieve true drainage Purpose

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