PROBLEM TO BE SOLVED: To provide a needleless infusion connector that can prevent the leakage of medicinal solution.SOLUTION: A needleless infusion connector includes: a tube 10 with a conduit 12 a moving member 20 movably attached to the inside of the tube, and circumferentially provided to the conduit an elastic member 30 installed to be compressible in the inside of the tube and having a lower compression pipe 31, a column 32, and an upper compression pipe 33 installed in this order, provided with a lower rod 34 in the inside of the lower compression pipe, also making the lower compression pipe adhere to the conduit of the tube, having the lower rod inserted to the conduit of the tube, having a passage 36 formed between the lower rod and the conduit so as not to come into communication with the inside of the upper compression pipe, and sealing the opening of the conduit by bringing the bottom edge of the lower rod into abutment with a tongue 121 of the conduit and a cap 40. The elastic member is brought into abutment with the cap and the moving member, respectively. Also, an upper rod 37 configured that a through-hole of the column does not come into communication with the inside of the cap is installed in the inside of the upper compression pipe.COPYRIGHT: (C)2015,JPO&INPIT【課題】薬液の漏れを防止することができる針なし輸液用コネクタを提供する。【解決手段】導管12を備えるチューブ10と、該チューブの内部に移動可能に取り付けられ、該導管に周設される移動部材20と、該チューブの内部に圧縮可能に設置されると共に、下部圧縮管31と、柱状部32と、上部圧縮管33とが順に設置され、該下部圧縮管の内部に下棒34が設けられ、また、該下部圧縮管は、該チューブの導管に密着され、該下棒が該チューブの導管に挿設され、該下棒と該導管との間に、該上部圧縮管の内部と連通しないように通路36が形成され、該下棒の底端が該導管の凸縁121に当接されることにより、該導管の開口が封止される弾性部材30と、キャップ40とを有し、該弾性部材は、該キャップと移動部材にそれぞれ当接されると共に、該上部圧縮管の内部に柱状部の貫通孔が該キャップの内部と連通しないような上棒37が設置される。【選択図】図4
