Factors influencing forces during laparoscopic pinching: Towards the design of virtual simulator

  • Susmitha W
  • Mathew G
  • Devasahayam S
 et al. 
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Abstract

Background: The design of good virtual simulators for laparoscopic training requires realistic visual and tactile perception. This is a study to characterize the factors that contribute to forces during laparoscopic pinching. Methods: Surgeons were divided into four groups according to years of experience in laparoscopic surgery. They were asked to grasp six different types of porcine abdominal tissue in a randomly sequenced manner, using two different types of sensorized graspers, under two regimes of perceptual feedback (with and without visual feedback). The forces (grasper handle force and grasper tip force) and grasper handle angle were recorded and analyzed. Results: The factors that determine forces during laparoscopic pinching can be ranked as follows: surgical experience (p

Author-supplied keywords

  • Laparoscopic forces
  • Laparoscopic pinching
  • Sensorized graspers
  • Virtual simulator
  • Visual feedbacks

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Authors

  • Wils K. Susmitha

  • George Mathew

  • Suresh R. Devasahayam

  • Benjamin Perakath

  • Saravana Kumar Velusamy

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