软硬腭及咽部手术大多需要将舌体、舌根持续性下压于口底,方能充分暴露手术视野,有利于手术的操作。传统压舌板常需一名手术助手持握、持续用力加压于舌体舌根,极易造成手术者疲劳,也影响操作速度。横式开口器(带压舌板)因安装较为复杂,影响手术操作,多不被口腔颌面外科医生所利用。鉴于上述问题,我们将直角式压舌板加以改进,研究设计了一种口外利用下颌骨体颏部固定的压舌板(如图1)。 Most of the soft and hard palate and pharyngeal surgery need to tongue, tongue sustained pressure on the bottom of the mouth, in order to fully expose the surgical field of vision, is conducive to the operation of the operation. Traditional tongue depressor often need a surgical assistant to hold, continue to force the pressure tongue tongue, can easily cause surgery fatigue, but also affect the operation speed. Horizontal opening device (with tongue depressor) due to the installation is more complex, affecting the operation, not to be used by oral and maxillofacial surgeons. In view of the above problems, we will be right-angle tongue depot to be improved, the study designed a mandibular body mandibular using a fixed tongue depressor (Figure 1).