If you look at the end of the video there is space around the tube. I think eventually an auxiliary port will be there for a truly SS chole. Although I think many gallbladders can be done with the two instruments given their extreme mobility and dexterity. Other procedures might require auxiliary ports placed off axis. It is the technology that is Single port orifice technology. It can be used for different surgeries including some that may or may not require other ports. Think of it like a very advanced camera with instruments attached to it. This camera can be used with other ports if necessary.
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