The da Vinci Si system allows the surgeon to operate three robotic arms simultaneously, while positioning a fourth arm to hold tissue in place. “Using three arms during the operation—one arm to hold tissue, one for drawing, and another for cutting and ligation—provides more dexterity than the two arms normally used in endoscopic surgery,” Dr. Chung said.
The robotic arms are fitted with forceps that enable the surgeon to hold, cut and cauterize tissue. The forceps are mounted on an EndoWrist developed by Intuitive to have seven degrees of movement and full rotation.
Sitting at a console several feet from the patient, the surgeon performs the surgery by operating the robotic arms while viewing the activity through the 3-D viewfinder with 10X magnification.