20 November 2014 Comparison of 1470nm laser and 1470nm laser heat head for ex-vivo kidney tissue cutting: a preliminary study
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Abstract
Purpose: Compare of the efficiency of 1470nm laser and 1470nm laser heat head for tissue cutting in vitro porcine kidney tissue . Method: We designed a laser heat head that convert laser energy into thermal energy by the absorbing materials. Fresh kidney tissue was harvested from a porcine and then placed on a turntable with constant speed . The same power of 1470nm laser and 1470nm laser heat head was used to cutting tissue, respectively .The cutting results and the range of thermal damage was compared after cutting . Result: Compared with 1470nm laser, 1470nm laser heat head's cutting traces is more smooth and the thermal damage area is very regular ,so it has smaller damage to deep tissue . Conclusion: The efficiency of laser heat head for tissue cutting was better. This study indicate that we might be able to make laser which the tissue have a low absorption coefficient about it to obtain good results for tissue cutting through the laser point heat source.
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Zhentian Zhou, Zhentian Zhou, Lupeng Zhang, Lupeng Zhang, Jiafeng Liu, Jiafeng Liu, Zhi Shun, Zhi Shun, Wenzhi Li, Wenzhi Li, Zhuwen Liu, Zhuwen Liu, Zhiyuan Liang, Zhiyuan Liang, } "Comparison of 1470nm laser and 1470nm laser heat head for ex-vivo kidney tissue cutting: a preliminary study", Proc. SPIE 9268, Optics in Health Care and Biomedical Optics VI, 92681L (20 November 2014); doi: 10.1117/12.2071194; https://doi.org/10.1117/12.2071194
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