PROBLEM TO BE SOLVED: To provide a needleless connector having a novel structure which can further effectively prevent a reverse flow of blood or the like when releasing a male lure.SOLUTION: A needleless connector 10 is provided with an elastic valve 14 having a slit 64 at a tip opening 38 of a chemical liquid path 28 formed in a housing 12, and can switch between communication and cutoff of the chemical liquid path 28 by inserting and releasing a male lure 102. On the elastic valve 14, a deformation part 60 is formed which deforms by inserting and releasing the male lure 102, the elastic valve being in contact with the housing 12 by the deformation of the deformation part 60. Also, a rough surface region is provided on at least one of the deformation part 60 and the housing 12 at a contact face between the deformation part 60 and the housing 12.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】雄ルアーの抜取り時における血液等の逆流を一層効果的に防止することのできる新規な構造のニードルレスコネクターを提供する。【解決手段】ハウジング12に形成された薬液流路28の先端開口部38にスリット64を備えた弾性弁体14が配されており、雄ルアー102を挿抜することで薬液流路28の連通と遮断とが切り換えられるニードルレスコネクター10において、弾性弁体14には雄ルアー102の挿抜によって変形する変形部60が形成されており、変形部60が変形によりハウジング12に当接すると共に、変形部60とハウジング12との当接面における変形部60とハウジング12との少なくとも一方に粗面領域が設けられている。【選択図】図1
