发明名称 Mouth prop and oral evacuation device
摘要 A combination mouth prop and oral evacuation device for use by a dentist includes a mouth prop for fitting between the upper and lower jaws for holding the mouth open, an attached, generally U-shaped suction tube secured to the mouth prop and fitted inside the lower jaw below the tongue and inside the teeth, for drawing fluids from within the mouth during dental work therein, and a tongue guard on the suction tube.
申请公布号 US4167814(A) 申请公布日期 1979.09.18
申请号 US19770786147 申请日期 1977.04.11
申请人 SCHUBERT, ROBERT E. 发明人 SCHUBERT, ROBERT E.
分类号 A61C17/08 主分类号 A61C17/08
代理机构 代理人
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