PROBLEM TO BE SOLVED: To provide a dental suction device which is remarkably compact and lightweight and is easily operated in comparison with conventional suction devices because, in suction mechanisms of the conventional dental suction devices, instruments are large and heavy for application using a large suction amount and there is a problem in suction and operation of liquid in an oral cavity.SOLUTION: A ball valve is disposed in a valve housing part of a dental suction device body. A slide switch slid forward and backward with the finger to open/close a fluid passage of the ball valve is disposed on the surface of the ball valve housing part. An insert-fitting part for various suction tubes is disposed at the front end of the housing part, and a suction tube insert-fitting part whose deflection angle can be set is disposed at the rear end of the housing part.COPYRIGHT: (C)2012,JPO&INPIT【課題】従来の歯科用吸引装置の吸引機構においては、吸引量が多い用途では器具が大きく重くなり、口腔内液体の吸引及び操作には問題があった。従来の吸引装置に比し、格段に小型・軽量で操作が容易な歯科用吸引装置を提供する。【解決手段】歯科用吸引装置本体のバルブ収納部に、ボールバルブが配設されてなり、ボールバルブ収納部の表面に、手指で前後にスライドしてボールバルブの流体通路を開閉できるスライドスイッチと、収納部の前方端部に各種の吸引管の挿着部及び、後端に偏角が設定できる吸引チューブの挿着部が配設される。【選択図】図1
