Robotic surgery has revolutionized the way laparoscopic surgeries are performed. It introduces a computer-enhanced surgical system that enhances surgical precision similarly to how a microscope enhances a surgeon's ability to see. This technology provides surgeons with an unprecedented level of control and precision over surgical instruments, improving dexterity, and ensuring accurate hand-eye coordination and visualization. Surgeons can minimize their hand movements by up to 5 to 10 times, allowing for the execution of intricate procedures in sensitive areas like the retina and ear. The system also eliminates natural hand tremors through precise position sensing, which happens around 1500 times a second.
In the operating room, the setup involves the surgeon operating from a console located near but not within the sterile area near the operating table. Through a master-slave system, the surgeon's hand movements at the console are translated to cable-driven, wristed instruments inserted through small laparoscopic ports (trocars), while the camera is held by its own robotic arm. An assistant surgeon, stationed beside the patient, uses a monitor to view and assist in the procedure.
This approach differs significantly from traditional laparoscopic surgery, where the 3-D operative space is viewed on a 2-D screen. In robotic surgery, the surgeon views the operation through two separate monitors, with each eye receiving images from its own camera channel. This setup creates a three-dimensional view of the surgical field with enhanced magnification, offering a more detailed perspective of the operation.
The robotic surgery system employs two primary controls, known as "the masters," which the surgeon operates with their index fingers and thumbs, alongside three foot pedals. These controls manage the movement and positioning of the surgical instruments (designed to be small enough for keyhole incisions), camera navigation, and cautery functions.
The system is compatible with a variety of additional tools, including:
- Monopolar and bipolar cautery devices for tissue cauterization
- Instruments that utilize harmonic mechanical energy
- Dissecting forceps for separating tissues
- Lasers for precise cutting and cauterization
- The EndoWrist Stapler™, which offers complete wrist-like movement in both horizontal and vertical orientations
These robot-assisted instruments are quickly and easily interchangeable by either an assistant surgeon or a trained scrub nurse present beside the patient. Unlike traditional laparoscopic tools, which are straight and rigid, the robot-assisted instruments feature endowrist technology. This technology grants the instruments six degrees of freedom at the tip for movements such as rotation and angulation, plus an additional degree of freedom for actions like grasping or cutting, mimicking the flexibility and dexterity of a human wrist. This allows for enhanced maneuverability, dexterity, and surgical precision.
