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캡슐 내시경용 소형 문신술 메커니즘

Design and Testing of a Compact Tattooing Mechanism for Capsule Endoscope

Journal of the Korean Society for Precision Engineering 2019;36(5):449-454.
Published online: May 1, 2019

1 한국항공대학교 항공우주 및 기계공학부

2 전남대학교 기계공학부

3 한국항공대학교 KAU 로봇연구센터

1 School of Aerospace and Mechanical Engineering, Korea Aerospace University

2 School of Mechanical Engineering, Chonnam National University

3 KAU Robot Research Center, Korea Aerospace University

#E-mail: bkim@kau.ac.kr, TEL: +82-2-300-0101
• Received: August 30, 2018   • Revised: November 23, 2018   • Accepted: November 29, 2018

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Robotic Localization Based on Planar Cable Robot and Hall Sensor Array Applied to Magnetic Capsule Endoscope
    Min-Cheol Kim, Eui-Sun Kim, Jong-Oh Park, Eunpyo Choi, Chang-Sei Kim
    Sensors.2020; 20(20): 5728.     CrossRef

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Design and Testing of a Compact Tattooing Mechanism for Capsule Endoscope
J. Korean Soc. Precis. Eng.. 2019;36(5):449-454.   Published online May 1, 2019
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Design and Testing of a Compact Tattooing Mechanism for Capsule Endoscope
J. Korean Soc. Precis. Eng.. 2019;36(5):449-454.   Published online May 1, 2019
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Design and Testing of a Compact Tattooing Mechanism for Capsule Endoscope
Image Image Image Image Image Image Image Image
Fig. 1 Tattooing mechanism configuration: (a) Capsule endoscope, (b) Tattooing module, (c) Camera, (d) Conical spring #1, (e) Housing, (f) Conical spring holder #2, (g) Needle, (h) Dummy needle, (i) Triggering module #2, (j) Conical spring #2, (k) Silicon pad, (l) Conical spring holder #1, (m) Triggering module #1
Fig. 2 Working principle according to each step
Fig. 3 A new triggering mechanism configuration
Fig. 4 Simulation results of a triggering module at 0.5 sec intervals
Fig. 5 Parameters of conical spring. (a) Free state without compression, (b) Compressed spring at transient point13
Fig. 6 Theoretical and experimental analysis for two conical springs
Fig. 7 Tattooing mechanism displacement experiment to show the needle insertion according to conical spring #1 deployment
Fig. 8 Ex-vivo tattooing mechanism test results using india ink. (a) The india ink injection, (b) Withdrawal of the needle, (c) Front view of the tattooing module after the injection, (d) Injected india ink in the porcine colon
Design and Testing of a Compact Tattooing Mechanism for Capsule Endoscope

Input conditions of the numerical simulation for the triggering mechanism

Conditions Numerical simulation
Heat source Ni-Cr wire
Input voltage [V] 2.5
Input ampere [A] 5
Input power [W] 12.5
Heat flux External natural convection
Atmosphere [atm] 1
Conical spring holder temperature [°C] 20

Conical spring parameters

Nomenclature Conical spring #1 Conical spring #2
D1 [mm] 3 4
D2 [mm] 8 8
n 5 5
na 1.2 1.5
nf 0.498 1.487
d [mm] 0.4 0.6
G [GPa] 72 72
Lo [mm] 10 10
La [mm] 9.52 9.1
Table 1 Input conditions of the numerical simulation for the triggering mechanism
Table 2 Conical spring parameters