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PROJECT TITLE :

Haptic Detection of Artificial Tumors by Hand and with a Tool in a MIS Environment

ABSTRACT :

Minimally invasive surgery uses optical cameras and special surgical tools so as to operate from an environment one step faraway from the body cavity of interest to the surgeon. It has been prompt that constraints posed by this arrangement, in particular the shortage of direct haptic feedback to the surgeon, may affect the surgeon's ability to identify tissues and accurately maneuver inside the body cavity. In the present study, the ability of laypeople to detect artificial tumors of various hardness values embedded in silicone gels was assessed during a simulated MIS environment. Participants explored the gels underneath three conditions all with remote viewing; using the unrestricted vacant finger, employing a stick-like surgical tool additionally unrestricted, and using the surgical tool restricted by its insertion through an operating port as in MIS. Participants were significantly more correct and additional efficient at tumor detection with the finger as compared to the other methods of exploration, and they were additionally higher at detecting tougher tumors as compared to softer ones. The potential implications of these results for the role of haptic perception in minimally invasive surgery are mentioned.


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