Differences in abdominal force between conventional and single port laparoscopy

Differences in abdominal force between conventional and single port laparoscopy

Sun, S.
Dankelman, J.
Horeman, T.

Mechanical, Maritime and Materials Engineering

Biomechanical Engineering

2013-10-07

In laparoendoscopic single-site surgery (LESS), only one single incision is used to introduce all instruments into the abdominal cavity. The introduction of multi-channel single-port devices enabled insertion of laparoscopic instruments and laparoscope through one single entry point instead of multiple entry points in conventional laparoscopic surgery (CLS). From recent studies is known that the distance between instruments influences the force exerted on tissue during manipulation. To investigate whether this force difference can also be found on the abdominal wall, a two-dimensional force measurement mechanism was designed and incorporated in a standard trainer box. The sensors were used to measure the abdominal force exerted by either the standard trocar or the single-port device on the artificial skin that mimics the abdominal wall. A randomized crossover study consisted of 16 students and three experienced surgeons was conducted. The subjects were asked to perform a task with two different instrument configurations (CLS and LESS) in randomized order. The results showed that when performing a force-related task with LESS configuration, the maximum abdominal force was significantly higher compared with the conventional twoport CLS configuration.

http://resolver.tudelft.nl/uuid:3531544a-6750-4575-b8b8-6138a662472f

DMD Europe 2013: Conference Design Medical Devices Europe, Delft, The Netherlands, 7-9 October 2013

Institutional Repository

conference paper

(c) 2013 The Author(s)