· Tough and wear-resistant sealing film system to achieve the best air tightness.

· The stability of the thread increases the fixation force of the abdominal wall.

· The smaller drag force and funnel-shaped guide groove make the device enter more smoothly.

· The two-sided tissue separated slice can minimize the abdominal wall trauma.

· The low profile chamber makes the effective length of the instrument into the abdominal cavity larger, which is convenient for the operation in the deeper part.

· Bladeless, Optical Tip—Direct visualization eliminates blind entry by enabling visualization of tissue layers during insertion.

· Disposable use, avoid the possibility of cross infection.