PROBLEM TO BE SOLVED: To provide a dental suction filter device that can efficiently suck and secure a proper flow rate in suctioning.SOLUTION: The dental suction filter device 10 is configured so that a flow channel 6 for communicating an inlet port 12 for sucking fluid to a discharge port 13 for discharging the fluid is formed. The dental suction filter device includes: a body member 11 formed with an opening part 14 communicated to the flow channel 6 a filter member 20 disposed between the inlet port 12 and the discharge port 13 and having a diameter gradually reduced toward a side of the discharge port 13 and a lid member 30 for blocking the opening part 14.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】 効率よく吸引し、吸引において適切な流量を確保することができる歯科用吸引フィルタ装置を提供する。【解決手段】 流体が吸入する吸気口12と流体が排出する排気口13とを連通する流路6を形成し、この流路6に連通する開口部14を形成した本体部材11と、吸気口12と排気口13との間に配置して排気口13側に向けて徐々に縮径させたたフィルタ部材20と、開口部14を閉塞する蓋部材30とで歯科用吸引フィルタ装置10を構成する。【選択図】 図4
