Indika B. Wanninayake

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This paper presents a novel technique for estimating stiffness distribution of a soft tissue using a prototype of air-float stiffness probe. The air-float stiffness probe uses an indentation technique to estimate tissue stiffness. It consists of a spherical indenter and an indentation depth sensing mechanism that operates under a supply of compressed air.(More)
This paper presents a novel approach to measuring the indentation depth of a stiffness sensor in real time during a soft tissue palpation activity. The proposed system is integrated into a stiffness probe and is designed to intra-operatively aid the surgeon to rapidly identify the tissue abnormalities with minimum measurement inaccuracies due to tissue(More)
This paper presents a novel palpation probe based on optical fiber technology. It is designed to measure stiffness distribution of a soft tissue while sliding over the tissue surface in a near frictionless manner. A novelty of the probe is its ability to measure indentation depth for nonplanar tissue profiles which are commonly experienced during surgery.(More)
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