Problem to be solved: to provide an aseptic connector suitable for miniaturization with high operability at the time of coupling.Solution: the first connector section 1 includes a casing 4 having a hollow needle 3, a bottom portion 41 and a side portion 42 capable of flowing fluid inside, and an elastic film 5 covering the tip end portion 31 of the hollow needle 3.The second connector part 2 is provided with a flow member 6 formed with a flow hole 60, a communication hole member 7 formed with a communication hole 70 communicating with the flow hole 60, and an elastic member 8 covering the opening 70A of the communication hole 70 in the front end face 71 while sealing the opening 70A of the communication hole .One or more groove portions 50 surrounding the tip end portion 31 of the hollow needle 3 are formed on the inner surface 52 of the elastic film 5.When the communicating hole member 7 is advanced while pushing down the elastic film 5 penetrated through the hollow needle 3 through the elastic member 8 covering the front end surface 71 along the hollow needle 3, the elastic film 5 is easily bent and bent into the inner surface 52 side by the groove portion 50.Diagram【課題】結合時の操作性が高く小型化に適した無菌コネクタを提供する。【解決手段】第１コネクタ部１は、内部を流体が流通可能な中空針３、底部４１と側面部４２とを有する筐体４、および、中空針３の先端側部分３１を覆う弾性膜５を備えている。第２コネクタ部２は、流通孔６０が形成された流通孔部材６、流通孔６０に連通する連通孔７０が形成された連通孔部材７、および、連通孔部材７の前端面７１を、前端面７１における連通孔７０の開口部７０ａを封止しつつ被覆する弾性部材８を備えている。弾性膜５の内面５２には、中空針３の先端側部分３１を取り巻く１つ以上の溝部５０が形成されている。連通孔部材７が、その前端面７１を被覆する弾性部材８を介して、中空針３に貫通された弾性膜５を中空針３に沿って押し下げながら進行する際には、この溝部５０のため弾性膜５は内面５２側に折り曲がりやすく容易に収縮する。【選択図】図３
