The present invention discloses a curved needle removal device for a portacath, comprising a body having a baffle plate and straight bar, a pulley slidably provided on the body and having an abutment plate, an operating rod pivotally connected to the body, and a linkage having two ends respectively pivoted at the operating rod and the pulley. In the starting state, the abutment plate of the pulley is abutted against the baffle plate of the body so as to make a second clip hole formed on the abutment plate to align with a first clip hole on the baffle plate, and achieve a maximum distance between the proximal end of the operating rod and the straight bar in the operating state, the distance between the proximal end of the operating rod and the straight bar is gradually reduced, therefore, the operating rod may drive the linkage to draw the pulley to move in a direction away from the baffle plate, thereby increasing the distance between the abutment plate and the baffle plate.本發明揭示一種人工血管彎針拔除器,包括具有擋板及直桿之主體、滑動設置於主體上並具有抵板之滑車、樞接於主體之操作桿、以及兩端分別樞接於操作桿及滑車上之連桿。於起始狀態時,該滑車的抵板抵接於主體的擋板以使形成於抵板上的第二夾孔與形成於擋板上的第一夾孔對齊,且使操作桿之近端與直桿之間具有最大距離;於操作狀態時,操作桿之近端與直桿之間的距離逐漸減小,以使操作桿帶動連桿牽引滑車朝遠離擋板的方向移動,俾逐漸增加抵板與擋板之間的距離。1‧‧‧主體10‧‧‧軌道11‧‧‧主桿111‧‧‧貫穿孔12‧‧‧擋板121‧‧‧第一夾孔13‧‧‧直桿2‧‧‧滑車20‧‧‧凸塊21‧‧‧本體211‧‧‧凹部22‧‧‧抵板221‧‧‧第二夾孔3‧‧‧操作桿31‧‧‧本體32‧‧‧延伸板321、322‧‧‧貫穿孔P‧‧‧近端R‧‧‧遠端4‧‧‧連桿41‧‧‧連接板42‧‧‧側板421、422‧‧‧貫穿孔51、52、52‧‧‧樞接件
