Water gas filter

Abstract

The invention provides a water gas filter, which comprises: a first shell, and a second shell. One end of the first shell is closed, and the other end is provided with an opening. One end of the opening is communicated with the second shell. A valve body extends out of an inner side wall of the second shell as a whole, and is selectively closed by a valve core. A gap is formed between the valve body and part of the inner side wall, one end of the gap is sealed, and the other end is communicated with the first shell. And the second shell is equipped with an inlet joint communicated with the gap. The first shell is internally provided with an annular filter screen, and an air inlet channel communicated with the valve body is disposed in the space enclosed by the filter screen. The water gas filter provided by the invention can conduct filtering treatment in advance on the gas current or water current in dental handpiece instruments so as to remove part of impurities contained therein, thereby avoiding blocking of channels in the handpiece instruments by impurities, and also preventing the harm of the contained impurities on the human body at the same time.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a water vapor filter. Background technique [0002] With the improvement of the national economy and living standards, the probability of people having oral problems is getting higher and higher. At the same time, oral hygiene and oral health care are getting more and more attention. At present, during the treatment process, doctors often need to use mobile phones related to treatment to assist treatment. Currently, handpieces for dental treatment have functions such as flushing and jetting. But the water and gas that present mobile phone equipment is used often contain certain impurity, use for a long time, and this not only can block the passage in the mobile phone equipment, and is unfavorable for patient's treatment. [0003] Therefore, it is necessary to provide a water vapor filter for a dental handpiece. Contents of the invention [0004] The object of the present inv...

AI Technical Summary

Problems solved by technology

However, the water and air used in current mobile phone devices often contain certain impurities, which will not only block the channels in the mobile phone device, but also be unfavorable for the treatment of patients.

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