High pressures are generated at the tip of laparoscopic graspers. Pressures increase as the angle of incidence of the grasper in relation to the tissue increases. The changes in pressure with change in angle are independent of load and handle pressure.

Laparoscopic graspers cause tissue trauma that can be assessed histologically. The current study presents a relevant, reproducible, ethically acceptable human model for assessing the interaction between laparoscopic graspers and soft tissues.

High pressures generated at the tip of laparoscopic graspers can be reduced by rounding the edge of the jaw.