Abstract
This paper presents a PMMA (Poly (methyl methacrylate)) microsuction tool for capsular endoscope using a solid chemical propellant, AIBN (azobisisobutyronitrile). A capsular endoscope integrated with a micro-suction tool can gather the gastro-intestinal juice for medical diagnosis. Our previous PDMS (polydimethylsiloxane) micro-suction tool has a problem of structural layer detachment between glass substrate and PDMS Venturi-tube body. In this study, PMMA is used as a material to enhance the bonding strength, which in turn results in an improved suction efficiency. The bonding strength of the PMMA and PDMS micro-suction tool are measured to be 1.6 N/m and 0.3 N/m, respectively. The value is five times larger for the PMMA micro-suction tool than that of the PDMS micro-suction tool. Also, the minimum negative pressure for suction is measured. The PMMA micro-suction tool starts to pump the diluted ink when generated negative pressure is 0.11 kPa. The value is approximately three times lower than that of the PDMS micro-suction tool. The diluted ink of 1.57 μL is successfully pumped into the PMMA micro-suction tool reservoir.
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Park, Hs., Koo, Ki., Lee, Sm., Ban, Jw., Jeong, Hy., Cho, Di. (2009). A PMMA Micro-suction Tool for Capsular Endoscope Using a Solid Chemical Propellant. In: Ślęzak, D., Arslan, T., Fang, WC., Song, X., Kim, Th. (eds) Bio-Science and Bio-Technology. BSBT 2009. Communications in Computer and Information Science, vol 57. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10616-3_6
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DOI: https://doi.org/10.1007/978-3-642-10616-3_6
Publisher Name: Springer, Berlin, Heidelberg
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