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http://dx.doi.org/10.3795/KSME-B.2013.37.9.807

Characterization of Porcine Tissue Perforation Using High-Power Near-Infrared Laser at 808-nm Wavelength  

Kim, Seongjun (Dept. of Mechanical Engineering, Graduate School, Kookmin Univ.)
Cho, Jiyong (Dept. of Mechanical Engineering, Graduate School, Kookmin Univ.)
Choi, Jaesoon (Asan Institute for Life Sciences, Asan Medical Center, Univ. of Ulsan College of Medicine)
Lee, Don Haeng (Division of Gastroenterology, Dept. of Internal Medicine, Inha Univ. School of Medicine, National Center of Efficacy Evaluation for the Development of Health Products Targeting Digestive Disorders, Utah-Inha DDS & Advanced Therapeutics Research Center)
Kim, Jung Kyung (School of Mechanical Systems Engineering & Dept. of Integrative Biomedical Science and Engineering, Graduate School, Kookmin Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.9, 2013 , pp. 807-814 More about this Journal
Abstract
A fundamental study on laser-tissue interaction was conducted with the aim of developing a therapeutic medical device that can remove lesions on the intestinal wall by irradiating a high-power 808-nm infrared laser light incorporated in an endoscopic system. The perforation depth was linearly increased in the range of 1~4 mm in proportional to laser output (3~12 W) and irradiation time (5~20 s). We demonstrated that the perforation depth during laser irradiation was varied according to the tissue property of each extracted porcine organ. The measurement of the temperature distribution suggests that the energy is localized in the irradiation spot and transferred to deep tissue, which protects the surrounding tissue from thermal injury. These results can be used to set the driving parameters for a laser incision technique as an alternative to conventional surgical interventions.
Keywords
Endoscopic Submucosal Dissection; Near-Infrared Laser; Laser Surgery; Porcine Tissue; Laser-Tissue Interaction;
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