PROBLEM TO BE SOLVED: To provide a catheter connector in which a catheter is hard to fall out.SOLUTION: A catheter connector 100 concerning the present invention comprises: a first through-hole 11 where a catheter 2 is inserted thereinto; a first member 10 provided with a first hole 12 and a second hole 13 in communication with the first through-hole 11; an elastic member 40 where the catheter 2 is inserted, a second through-hole 41 in communication with the first through-hole 11 is provided, and the catheter 2 is fixed; and a second member 20 being connected to the first member 10 through a shaft member 16 and having a first protrusion 22. The catheter connector is brought into a first state where the first protrusion 22 is not positioned in the first through-hole 11 by that the second member 20 is turned using the shaft member 16 as a shaft and a second state where the first protrusion 22 is positioned in the first through-hole 11 through the first hole 12. The first protrusion 22 pushes the catheter 2 to the second hole 13 in the second state.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2020,JPO&INPIT【課題】カテーテルが抜け難いカテーテルコネクタを提供する。【解決手段】本発明に係るカテーテルコネクタ100は、カテーテル2が挿入される第1貫通孔11と、第1貫通孔11に連通する第1穴12および第2穴13とが設けられた第1部材10と、カテーテル2が挿入され、第1貫通孔11に連通する第2貫通孔41が設けられ、カテーテル2を固定する弾性部材40と、第1部材10に軸部材16を介して接続され、第1突起部22を有する第2部材20と、を含み、第2部材20が軸部材16を軸として回動することにより、第1突起部22が第1貫通孔11に位置しない第1状態と、第1突起部22が第1穴12を通って第1貫通孔11に位置する第2状態と、になり、第1突起部22は、第2状態において、カテーテル2を第2穴13に押す。【選択図】図5