Hot biopsy forceps are widely used as surgical instruments for removal of colorectal polyps during therapeutic colonoscopy; however, special care is needed during the treatment process in order to prevent potential tissue damage such as excessive burning and perforation [1]. Studies on in vivo porcine models have proved the general relationship between power output and tissue damages [2], but the use of these in vivo models limited the application of the results. When compared with in vivo testing models, ex vivo testing models have more advantages: universal setup minimizes the variance induced by the individual lab animals, experiment parameters and conditions; test models generate reliable, comparable results, and avoid the cost of lab animals and related ethical issues. One important factor of the ex vivo test models is the emulation of the properties of a human or a lab animal body....

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