PROBLEM TO BE SOLVED: To improve workability for discharging residual liquid from a liquid conduit line that is installed in a dental treatment device.SOLUTION: A holding member 8 holds an end of an instrument by being attached with the end when residual liquid is discharged from a liquid supply system that is installed in a dental treatment device. The holding member 8 is made of an elastic material and, when being attached with an end, holds the end by being elastically deformed by the attached end.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】歯科用診療装置に設けられた液体用管路内の残留液体を排出するための作業性の向上を図る。【解決手段】歯科用診療装置に設けられた液体供給系内の残留液体の排出が行われる際にインスツルメントの端部が取り付けられ、端部を保持する保持部材８であって、弾性材料により構成され、端部が取り付けられると、取り付けられた端部により弾性変形して端部を保持する保持部材８である。【選択図】図３
