caa a22 4500 475781317 CHVBK 20180406123645.0 cr unu---uuuuu 170329e20000501xx s 000 0 eng 10.1007/PL00021301 doi (NATIONALLICENCE)springer-10.1007/PL00021301 Quantitative evaluation of surgical task performance by remote-access endoscopic telemanipulation [Elektronische Daten] [R. Li, J. Jensen, J. Hill, J. C. Bowersox] Background: The performance limitations inherent in minimally invasive surgery may be overcome by using an interface that provides intuitive orientation for video display and tool manipulation. A prototype remote-access endoscopic telemanipulator was designed to fulfill these requirements and used for a surgical anastomosis task. Methods: A remote-access telemanipulator system, employing remote center-of-motion geometry, was used to complete distant in vitro tubular anastomoses. The performance of four surgeons using this system was compared with that achieved in completing the same anastomosis task in an open environment using open surgical techniques and in a minimally invasive environment using standard laparoscopic methods. Results: The average performance times for completion of the anastomosis task was 1448 ± 130 s using the telemanipulator system compared with 2108 ± 291 s with laparoscopic instruments and 296 ± 25 s with conventional techniques. Leakage rates from the tubular anastomoses were 5.2 ± 1.4 ml/s in the telemanipulator group, 6.9 ± 2.0 ml/s in the laparoscopic group, and 3.2 ± 0.9 ml/s in the conventional methods group. All experimental subjects were able to complete the assigned task in each experimental condition successfully without complications. Conclusions: Our results in this pilot study suggest that remote-access endoscopic telemanipulation can execute complex three-dimensional manipulations, and that the intuitive orientation of the surgeon's workstation may contribute to easier task completion. Springer-Verlag New York Inc., 2000 Key words: Surgery, laparoscopic — Surgery, minimally invasive — Surgery, endoscopic — Robotics — Human engineering — User computer interface nationallicence Li R. Department of Surgery S-550, Box 0475, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0475, USA, US aut Jensen J. California and the Medical Technology Laboratory, SRI International, Menlo Park, CA, USA, US aut Hill J. California and the Medical Technology Laboratory, SRI International, Menlo Park, CA, USA, US aut Bowersox J. C. Department of Surgery S-550, Box 0475, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0475, USA, US aut Surgical Endoscopy Springer-Verlag 14/5(2000-05-01), 431-435 0930-2794 14:5<431 2000 14 464 https://doi.org/10.1007/PL00021301 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00021301 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li R. Department of Surgery S-550, Box 0475, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0475, USA, US aut NATIONALLICENCE 700 1- Jensen J. California and the Medical Technology Laboratory, SRI International, Menlo Park, CA, USA, US aut NATIONALLICENCE 700 1- Hill J. California and the Medical Technology Laboratory, SRI International, Menlo Park, CA, USA, US aut NATIONALLICENCE 700 1- Bowersox J. C. Department of Surgery S-550, Box 0475, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143-0475, USA, US aut NATIONALLICENCE 773 0- Surgical Endoscopy Springer-Verlag 14/5(2000-05-01), 431-435 0930-2794 14:5<431 2000 14 464 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer