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Proceedings Papers

Introducing Machine Learning in Undergraduate Mechanical Engineering Mechatronics Classes

Jinki Kim, Junghun Choi, Jongyeop Kim
Proc. ASME. IMECE2023, Volume 8: Engineering Education, V008T09A019, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112655
https://doi.org/10.1115/IMECE2023-112655
View Paper titled, Introducing Machine Learning in Undergraduate Mechanical Engineering Mechatronics Classes
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Topics: Machine learning, Mechanical engineering, Mechatronics, Undergraduate students, Vibration
Proceedings Papers

The Calibration of a Bioelectrical Impedance Spectroscopy Device

JungHun Choi
Proc. ASME. DMD2021, 2021 Design of Medical Devices Conference, V001T12A008, April 12–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: DMD2021-1043
https://doi.org/10.1115/DMD2021-1043
View Paper titled, The Calibration of a Bioelectrical Impedance Spectroscopy Device
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Topics: Calibration, Electrochemical impedance spectroscopy, Electrodes
Proceedings Papers

A Comparison of Two Segmental Bioelectrical Impedance Analysis Methods With Whole-Body Analysis

Thomas Cannon, JungHun Choi
Proc. ASME. DMD2019, 2019 Design of Medical Devices Conference, V001T10A005, April 15–18, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DMD2019-3217
https://doi.org/10.1115/DMD2019-3217
View Paper titled, A Comparison of Two Segmental Bioelectrical Impedance Analysis Methods With Whole-Body Analysis
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Topics: Electrodes, Errors
Proceedings Papers

Measurement and Comparision of Multi-Electrode Placement for Bioelectrical Impedance Analysis

Daniel West, JungHun Choi
Proc. ASME. DMD2019, 2019 Design of Medical Devices Conference, V001T10A011, April 15–18, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DMD2019-3265
https://doi.org/10.1115/DMD2019-3265
View Paper titled, Measurement and Comparision of Multi-Electrode Placement for Bioelectrical Impedance Analysis
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Topics: Chisels, Electrochemical impedance spectroscopy, Electrodes, Enterprise information management, Fluids, Impedance (Electricity), Matlab, Muscle, Pellet fusion
Proceedings Papers

Impedance Controlled Hot Snare Polypectomy

CurtisLee Thornton, JungHun Choi
Proc. ASME. DMD2019, 2019 Design of Medical Devices Conference, V001T10A012, April 15–18, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DMD2019-3270
https://doi.org/10.1115/DMD2019-3270
View Paper titled, Impedance Controlled Hot Snare Polypectomy
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Topics: Biological tissues, Cycles, Damage, Design, Feedback, Fire, Firing, Thermal energy, Wounds
Proceedings Papers

Characteristics of Intracellular and Extracellular Fluid Ratio for the Varying Body Impedances in Fixed Total Body Fluid

JungHun Choi
Proc. ASME. DMD2017, 2017 Design of Medical Devices Conference, V001T11A004, April 10–13, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DMD2017-3309
https://doi.org/10.1115/DMD2017-3309
View Paper titled, Characteristics of Intracellular and Extracellular Fluid Ratio for the Varying Body Impedances in Fixed Total Body Fluid
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Topics: Fluids, Pellet fusion, Acoustics, Blood, Capacitors, Cell membranes, Electrochemical impedance spectroscopy, Errors, Impedance (Electricity), Interpolation
Proceedings Papers

Performance Evaluation of Thrust Washer Bearings Using a Customized Bench Scale Test Rig

Kyle Myers, Sean Jenson, Mike Brooksbank, Muhammad Ali, Khairul Alam, Junghun Choi, Jay Wilhelm, Joseph Gillespie, Richard Walker
Proc. ASME. IMECE2016, Volume 4A: Dynamics, Vibration, and Control, V04AT05A054, November 11–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2016-67053
https://doi.org/10.1115/IMECE2016-67053
View Paper titled, Performance Evaluation of Thrust Washer Bearings Using a Customized Bench Scale Test Rig
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Topics: Bearings, Performance evaluation, Thrust, Temperature, Pressure, Instrumentation, Steel, Stress, Aluminum, Control equipment
Journal Articles

A Hand-Held Device for Controlling a Mounted, Motor Driven Colonoscope

Corey D. Sheerer, David Drozek, Junghun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2015, 9(3): 030924.
Paper No: MED-15-1080
https://doi.org/10.1115/1.4030601
Published Online: September 1, 2015
View Article titled, A Hand-Held Device for Controlling a Mounted, Motor Driven Colonoscope
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Topics: Engineering prototypes, Motors, Fatigue
Journal Articles

Medical Equipment to Make Colonoscopy Procedures Safer for Physicians: Control Head Holder and Splatter Shield

Rajesh Shanbhag, Ibrahim F. Kadhim, Brian Clark, Niladri Kumar Mahato, David Drozek, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2014, 8(3): 030953.
Paper No: MED-14-1127
https://doi.org/10.1115/1.4027120
Published Online: July 21, 2014
View Article titled, Medical Equipment to Make Colonoscopy Procedures Safer for Physicians: Control Head Holder and Splatter Shield
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Topics: Fatigue, Medical devices, Muscle, Electromyography
Journal Articles

Development of a Distal Tip Extension Mechanism for Endoscopes

Ibrahim F. Kadhim, Rajesh Shanbhag, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2014, 8(3): 030929.
Paper No: MED-14-1080
https://doi.org/10.1115/1.4027074
Published Online: July 21, 2014
View Article titled, Development of a Distal Tip Extension Mechanism for Endoscopes
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Topics: Endoscopes, Springs, Engineering prototypes
Journal Articles

Preliminary Development of a Robust Multilink Modular Robotic System for Improvement of Colonoscopy Intubation Process

Kaiqiang Liu, Corey D. Sheerer, Junghun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2014, 8(3): 030930.
Paper No: MED-14-1081
https://doi.org/10.1115/1.4027075
Published Online: July 21, 2014
View Article titled, Preliminary Development of a Robust Multilink Modular Robotic System for Improvement of Colonoscopy Intubation Process
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Topics: Robotics, Sensors, Shapes
Journal Articles

Detection of Looping During Colonoscopy Using Embedded Sensors

Mike Bruce, David Drozek, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2014, 8(3): 030954.
Paper No: MED-14-1128
https://doi.org/10.1115/1.4027122
Published Online: July 21, 2014
View Article titled, Detection of Looping During Colonoscopy Using Embedded Sensors
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Topics: Sensors, Shapes
Journal Articles

Evaluation of Feedback Enabled Active Colonoscopy Training Model

Ravindra Kale, David Koonce, David Drozek, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. December 2013, 7(4): 041008.
Paper No: MED-12-1116
https://doi.org/10.1115/1.4024831
Published Online: September 24, 2013
View Article titled, Evaluation of Feedback Enabled Active Colonoscopy Training Model
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Topics: Students, Feedback
Journal Articles

Novel Ex Vivo Testing Model for Monopolar Hot Biopsy Forceps

Liang Chen, Ramiro Malgor, David Drozek, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2013, 7(3): 030943.
Paper No: MED-13-1115
https://doi.org/10.1115/1.4024347
Published Online: July 3, 2013
View Article titled, Novel Ex Vivo Testing Model for Monopolar Hot Biopsy Forceps
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Topics: Biological tissues, Damage, Testing, Ablation (Vaporization technology)
Journal Articles

Method for Detecting Ablation Damage Using Sensor Integration of Hot Biopsy Forceps

Randolph Robert, Liang Chen, Rajesh Shanbhag, David Drozek, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. September 2013, 7(3): 030948.
Paper No: MED-13-1120
https://doi.org/10.1115/1.4024348
Published Online: July 3, 2013
View Article titled, Method for Detecting Ablation Damage Using Sensor Integration of Hot Biopsy Forceps
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Topics: Ablation (Vaporization technology), Biological tissues, Damage, Sensors, Capacitance
Journal Articles

Development and Evaluation of the Innovative Smartphone Interface Bioelectrical Impedance Analyzer

ByungHo Choi, Ho Joon Kang, Ho Gil Cho, JungHun Choi
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Technical Briefs
J. Med. Devices. June 2013, 7(2): 020935.
Paper No: MED-13-1112
https://doi.org/10.1115/1.4024339
Published Online: June 12, 2013
View Article titled, Development and Evaluation of the Innovative Smartphone Interface Bioelectrical Impedance Analyzer
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Topics: Biomedicine, Computer software, Electrodes, Hardware, Muscle, Signals, Waves, Weight (Mass)
Proceedings Papers

The Elastic Limits of Colon Tissues for Different Radii of a Tool Tip End Using a Simple Modeling

Junghun Choi
Proc. ASME. IMECE2010, Volume 2: Biomedical and Biotechnology Engineering, 843-846, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-38672
https://doi.org/10.1115/IMECE2010-38672
View Paper titled, The Elastic Limits of Colon Tissues for Different Radii of a Tool Tip End Using a Simple Modeling
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Topics: Biological tissues, Modeling, Boundary-value problems, Shapes, Damage, Mechanical properties, Needles, Stress, Stress-strain curves
Journal Articles

Evaluation of Active Colonoscopy Training Model (ACTM)

Ravindra V. Kale, JungHun Choi, David Drozek
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Frontiers Abstracts
J. Med. Devices. March 2012, 6(1): 017555.
https://doi.org/10.1115/1.4026733
Published Online: March 12, 2012
View Article titled, Evaluation of Active Colonoscopy Training Model (ACTM)
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Journal Articles

Variable Assessment for Design of Monopolar Hot Biopsy Forceps

Randy Robert, Liang Chen, JungHun Choi, David Drozek
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Frontiers Abstracts
J. Med. Devices. March 2012, 6(1): 017560.
https://doi.org/10.1115/1.4026738
Published Online: March 12, 2012
View Article titled, Variable Assessment for Design of Monopolar Hot Biopsy Forceps
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Topics: Design
Journal Articles

Analysis of the Looping Problems in Colonoscopy Using Bending Sensors

JungHun Choi, Ph.D., David Drozek, D.O.
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Frontiers Abstracts
J. Med. Devices. March 2012, 6(1): 017554.
https://doi.org/10.1115/1.4026732
Published Online: March 12, 2012
View Article titled, Analysis of the Looping Problems in Colonoscopy Using Bending Sensors
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Topics: Sensors