PROBLEM TO BE SOLVED: To reduce leakage in a connection part of a tube for suctioning.SOLUTION: A surgical handpiece includes a housing gripped by a user, a suction flow passage member accommodated in the housing for suctioning liquid, and a suction tube held by the housing, which is connected to the suction flow passage member by interference fit for suctioning liquid. At least either the suction flow passage member or the suction tube includes a seal portion that rises toward a counterpart of the interference fit, and achieves the interference fit.SELECTED DRAWING: Figure 21COPYRIGHT: (C)2017,JPO&INPIT【課題】吸引のための管の接続部における漏れの低減。【解決手段】ユーザーによって把持される筐体と、前記筐体内に収容され、液体を吸引するための吸引流路部材と、前記筐体によって保持され、液体を吸引するために前記吸引流路部材と締まり嵌めによって接続された吸引管と、を備え、前記吸引流路部材と前記吸引管との少なくとも何れかは、前記締まり嵌めの相手に向かって盛り上がり、前記締まり嵌めを実現するためのシール部を備える手術用ハンドピース。【選択図】図21
