Design and fabrication of a novel tactile sensory system applicable in artificial palpation

Abstract Force and position feedback are the two important parameters that are employed in different medical diagnoses and more specifically surgical operations. Furthermore, during different minimally invasive procedures, the ability of touch and force and position feedback are absent. In this regard, artificial palpation is a new technology that is employed to obtain tactile data in situations where physicians/surgeons cannot use their tactile sense. One of the most valuable achievements of artificial palpation are tactile sensory systems that have various applications in the detection of hard objects inside the soft tissue. Considering the present problems and limitations of kidney stone removal laparoscopy, the aim of this research is to design and fabricate a novel tactile sensory system capable of determining the exact location of stones during laparoscopy. This new tactile sensory system consists of four main parts: The sensory part, the mechanical part, the electrical part, and the display part. In this new system, due to the use of both displacement and force sensors, the usage limitations of previous tactile sensory systems are eliminated. The new tactile sensory system is well capable of finding the stone in the laboratory models through physical contact with the model's surface.

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