Disclosed is an adjustable curved medical catheter, comprising a catheter (110), a handle (140), and a traction wire (122) provided in the conduit (110), wherein the distal end of the traction wire (122) is connected to the elastic distal end of the catheter (110), and further comprising a retainer means (130) provided in the handle (140) and connected to the handle (140), wherein the retainer means (130) comprises a body (131) and a rotating member (132), wherein the body is provided with a housing groove (131a) and guide holes (133) perforates the outer wall of the body (131) to the housing groove (131a), the rotating member (132) is housed in the housing groove (131a), and there is a slot (134) having a diameter less than the diameter of the traction wire (122) between the rotating member (132) and the inner wall of the body (131), the proximal end of the traction wire (122) perforates the guide holes (133), and is retained in the slot (134). The traction wire (122) of the adjustable curved medical catheter has the advantages of a solid and reliable connection, high reliability of curve adjustment and high flexibility, and can be subjected to on-site curve adjustments to fit individual circumstances.L'invention concerne un cathéter médical incurvé et ajustable qui comporte un cathéter (110), une poignée (140) et un fil de traction (122) disposé dans le conduit (110), l'extrémité distale du fil de traction (122) étant reliée à l'extrémité distale élastique du cathéter (110), et qui comporte en outre un moyen de retenue (130) disposé dans la poignée (140) et relié à la poignée (140), le moyen de retenue (130) comportant un corps (131) et un élément rotatif (132), le corps étant pourvu d'une rainure de logement (131a) et de trous de guidage (133) perforant la paroi externe du corps (131) au niveau de la rainure de logement (131a), l'élément rotatif (132) étant logé dans la rainure de logement (131a), une fente (134) ayant un diamètre inférieur au diamètre du fil de
