Endo keeper(wound retractor) is the channel to take out the specimen and fix incision and open it. Also wound retractor protects from the contamination and infection. â?¦ Endo keeper (C&CG) simple characteristics 1) Easy insert with two step design- Wound retractor & cap 2) High elasticity 3) Can be opened during operation 4) CO2 injection is possible without the help of other instrument 5) Separation gas inlet â?¦ Advantages 1) Wound Retractor is made of polyurethane. -> Polyurethane is sturdy and soft so that Wound retractor is not torn easily. In addition, the direction control is flexible so that curved instruments get inserted. 2) Easy to inject CO2 gas. ->Endo keeper has the gas inlet. 3) High-elastic Port Cap -> It protects leak to the Gas and can open during the surgery. It is flexible so it can be moved and bent in every direction. 4) Convenient removal ->with removal line and removal ring, Endo keeper can be easily removed after the surgery. â?¦ How to use 1) Make a 2.5 cm incision on the navel area. 2) Squeeze the inner ring. 3) Insert the inner ring into the incision. 4) Adjust the outer ring to install the inner ring inside the abdominal wall. 5) Roll up the Urethane wound retractor and fix the outer ring according to abdomen thickness 6) Connect the valve connector to inject CO2 gas. 7) Insert surgical instruments and endoscope through port cap. 8) Remove the Endo Keeper by pulling the removal ring.