The objective of this work is to experimentally and numerically evaluate small-scale cryosurgery using an ultrafine cryoprobe. The outer diameter (OD) of the cryoprobe was 550 μm. The cooling performance of the cryoprobe was tested with a freezing experiment using hydrogel at 37 °C. As a result of 1 min of cooling, the surface temperature of the cryoprobe reached −35 °C and the radius of the frozen region was 2 mm. To evaluate the temperature distribution, a numerical simulation was conducted. The temperature distribution in the frozen region and the heat transfer coefficient was discussed.
Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe
Manuscript received February 14, 2014; final manuscript received July 3, 2014; published online July 24, 2014. Assoc. Editor: Calvin Li.
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Okajima, J., Komiya, A., and Maruyama, S. (July 24, 2014). "Experimental and Numerical Evaluation of Small-Scale Cryosurgery Using Ultrafine Cryoprobe." ASME. J. Nanotechnol. Eng. Med. November 2013; 4(4): 040906. https://doi.org/10.1115/1.4027988
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