The present invention relates to a cutting cutter for a joint using a robot. More particularly, the present invention relates to a cutting cutter for a joint, which can improve the durability of the cutting cutter and the stability of the operation by preventing the foreign matter and the washing water from flowing back into the inside of the sleeve To a cutting cutter for a joint using a robot. The cutting cutter for a joint using a robot according to the present invention is inserted into and installed in a sleeve of a cutter supporting member connected to a robot arm portion of a joint cutting system using a robot, And a cutting head formed at an end of the shaft, wherein a backflow preventive extension portion is formed at an inner portion of the cutting head in contact with the end portion of the sleeve. According to the present invention, even if foreign substances such as blanks or washing water are discharged to the rear side through the cutout discharge groove at the time of cutting, there is an effect that the phenomenon of flowing into the inside of the sleeve is blocked by the backflow prevention lead formed between the cutting head and the end of the sleeve . As a result, the flow of cutting contaminants and washing water into the sleeve is minimized, so that the straightness of the shaft is kept constant and the rotating action of the cutting head is stably performed, thereby ensuring the accuracy and stability of the procedure, Wear, damage and deformation of the parts according to the present invention can be reduced, so that the durability of the cutting cutter and the peripheral device can be remarkably improved.본 발명은 로봇을 이용한 관절절삭용 절삭커터에 관한 것으로서, 더욱 상세하게는, 커터의 회전시에 이물질 및 세척수가 슬리브의 내부로 역류되지 않도록 함으로써 절삭커터의 내구성과 시술의 안정성을 향상시킬 수 있는 로봇을 이용한 관절절삭용 절삭커터에 관한 것이다.본 발명에 따른 로봇을 이용한 관절절삭용 절삭커터는 로봇을 이용한 관절 절삭시스템의 로봇팔 부분에 접속되는 커터지지부재의 슬리브에 삽입, 설치되는 절삭커터에 있어서, 상기 절삭커터는 상기 슬리브의 샤프트삽입공에 삽입되는 샤프트와, 상기 샤프트의 단부에 형성되는 절삭헤드를 구비하되, 상기 슬리브의 단부와 접하는 상기 절삭헤드의 내측 부분에 역류방지연
