Quantitative evaluation of surgical task performance by remote-access endoscopic telemanipulation.

Area of Science:

• Robotics in Surgery
• Minimally Invasive Surgery
• Surgical Technology

Background:

• Minimally invasive surgery (MIS) faces performance limitations due to orientation challenges.
• A prototype remote-access endoscopic telemanipulator was developed to address these limitations.
• The system was evaluated for a surgical anastomosis task.

Purpose of the Study:

• To assess the efficacy of a novel telemanipulator system for surgical anastomosis.
• To compare the performance of the telemanipulator system against laparoscopic and open surgical techniques.
• To evaluate the impact of intuitive orientation on task completion.

Main Methods:

• A remote-access telemanipulator system with remote center-of-motion geometry was utilized.
• In vitro tubular anastomoses were performed using the telemanipulator.
• Surgeon performance was compared across telemanipulator, standard laparoscopic, and open surgical methods.

Main Results:

• Telemanipulator use resulted in an average task completion time of 1448 ± 130 s, compared to 2108 ± 291 s for laparoscopy and 296 ± 25 s for conventional techniques.
• Leakage rates were 5.2 ± 1.4 ml/s (telemanipulator), 6.9 ± 2.0 ml/s (laparoscopic), and 3.2 ± 0.9 ml/s (conventional).
• All participants successfully completed the assigned task in all conditions without complications.

Conclusions:

• Remote-access endoscopic telemanipulation demonstrates capability for complex 3D surgical manipulations.
• The intuitive surgeon workstation orientation may facilitate easier task completion in MIS.
• This pilot study suggests potential for telemanipulation to improve surgical outcomes.