The present invention provides a single-use disposable mouthpiece and adapter to simplify the structure, prevent secondary infection due to reuse of the adapter, and also provide a measuring device for securing the stability of the secondary infection through the eco- Gt; mouthpiece. / RTI The present invention relates to an apparatus and a method for measuring a blood pressure of an examinee, the apparatus comprising: a main body having one side opened to be coupled with a measuring instrument; And an adapter that is inserted and fixed to one open mouth of the main body to filter foreign substances, and is provided with one integral mouthpiece.
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