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New training instrument allows surgeon to feel grasp force in keyhole surgery
Date:1/24/2011

nder that can turn in relation to the hand, as if something is falling out of your hand. In this way the cylinder indicates that the surgeon has too little grip, and is therefore grasping too gently."

Vibrations

"The handle also contains vibrating elements, which start to vibrate if the surgeon is grasping too hard, while also taking account of how hard the surgeon is pulling. The harder he or she pulls on the tissue, the less hard he or she should grasp. We also take the type of tissue into account. After all, it makes quite a difference whether you are grasping an intestine or working with a liver."

Training

In the future an instrument such as Westebring's could be used in training for real operations. "By training with feedback, surgeons learn to control their laparoscopic grasp force more quickly. The forces they apply are lower." What is more, the effect seems to last. "When the feedback signal is removed, the surgeons can still carry out the procedure with reduced force. The feedback therefore helps with the control of the laparoscopic grasp force, even if it is only used in training."


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Contact: Ilona van den Brink
i.vandenbrink@tudelft.nl
31-152-784-259
Delft University of Technology
Source:Eurekalert

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