JungHun Choi

Assistant Professor, Department of Mechanical Engineering Georgia Southern University

  • Statesboro GA

JungHun Choi is an expert in colonoscopy-related medical devices and bioimpedance measurement.

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Georgia Southern University

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Biography

JungHun Choi is an Assistant Professor in the Department of Engineering at the Georgia Southern University.

Areas of Expertise

bioimpedance measurement
Medical Devices
Colonscopy-Related Medical Devices

Education

Virginia Tech

Ph.D.

Patents

Test system and method for determining thermal effects of tissue ablation on an ex vivo tissue

US9482658B2

2016

A test system and method for determining thermal effects of tissue ablation on an ex vivo tissue includes a power generator, a grounding patch, and a material block configured to emulate an electrical property of a patient. The power generator electrically connects to an electrode to generate an electrical current in the electrode. The grounding patch electrically connects to the power generator, and the material block electrically connects to the grounding patch. Furthermore, the material block includes an ex vivo tissue patch configured to emulate an in vivo tissue of the patient. As such, selectively engaging the electrode to the ex vivo tissue patch electrically connects the electrode to the grounding patch through the material block for electrocauterizing the ex vivo tissue patch.

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Articles

Improvement of Mobile Device Connectable Bioelectrical Impedance Analyzer

Journal of Medical Devices

Byung Ho Choi, Jung Min Kim, Youn Ho Shin, Gyungcheol Choi, Jung Hun Choi

2016

A bioelectrical impedance analyzer is a simple and proven technology in body composition measurements. Due to the recent demand for portable health care devices that can be linked with variable mobile devices, there are many bioimpedance-related products that have been developed. Since the body composition is one of the standard indicators for a person's health and performance, the continuous and long-term monitoring of the body composition is very beneficial to live a quality life and to save health care costs. In this study, four bioimpedance analyzers were used, and the results regarding the measurement accuracy were discussed. An eight-point bioimpedance analyzer was selected as a reference device, and three portable bioimpedance analyzers were compared for body fat percentage (BFP).

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

Journal of Medical Devices

Corey D Sheerer, David Drozek, Junghun Choi

2015

Colorectal cancer is the third most common and fourth deadliest cancer in the world [1], with an estimated 96,000 new cases of colon cancer, 40,000 new cases of rectal cancer, and 50,000 deaths from these diseases in the US alone (2014)[2]. Colonoscopy is recognized as the gold standard for detection and removal of polyps within the colon; however, the quality of the procedure relies on the skill and experience of the physician [3]. This quality can be compromised due to inexperienced physicians, as well as experienced physicians forming fatigue injuries.

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

Journal of Medical Devices

Kaiqiang Liu, Corey D Sheerer, Junghun Choi

2014

Colonoscopy is one of the most commonly utilized methods for detection and diagnosis of colorectal diseases, including colorectal cancer, which has the second highest number of cancer deaths in the United States [1]. A conventional colonoscope is used in colonoscopies for the detection colorectal conditions. It consists of a shaft and a distal tip that can be manipulated by the colonoscopist to bend in order to navigate turns in the colon.

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