The present invention discloses a cannula device for a laparoscopic surgery. The cannula device comprises a cannula body, at least one cylindrical through hole and a thread structure the portion between a first end and a second end of the cannula body is defined as an extension part the cylindrical through hole extends between the surfaces of the first end and the second end the thread structure is disposed on the surface of the extension part wherein the extension part provides the cannula device to be screwed into an abdominal cavity through a wound of a abdominal wall, so as to increase the convenience to mount the cannula device and decrease the surgical time, and then reduce the surgical risk.本發明係揭露一種使用於腹腔鏡手術之套管裝置,其包含一套管本體、至少一圓柱形穿孔以及一螺紋結構,該套管本體之一第一端及一第二端之間係一延長部,該圓柱形穿孔係連通於套管本體之該第一端的表面及該第二端的表面之間,該螺紋結構係設置於套管本體之該延長部之表面上,其中,該螺紋結構可供套管裝置經由一腹壁之一傷口旋入一腹腔中,藉以增加架設套管裝置之便利性,並可減少手術時間,降低手術風險。1...套管裝置100...套管本體101...第一端102...第二端101’、102’...凹陷之弧面103...延長部110...圓柱形穿孔120...螺紋結構130...擋止結構131...固定孔
