Development of a Distal Tip Extension Mechanism for Endoscopes

Development of a Distal Tip Extension Mechanism for Endoscopes

Bibliographic Details
Main Author: Kadhim, Ibrahim F.
Language:English
Published: Ohio University / OhioLINK 2015
Subjects:
Mechanical Engineering
Extension Mechanism
Colonoscopy
Distal Tip
Loops in Colon
Extension Knob
Telescoping Shaft
Extension Process
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1418314132
id ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou1418314132
record_format oai_dc
spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou14183141322021-08-03T06:28:36Z Development of a Distal Tip Extension Mechanism for Endoscopes Kadhim, Ibrahim F. Mechanical Engineering Extension Mechanism Colonoscopy Distal Tip Loops in Colon Extension Knob Telescoping Shaft Extension Process Colonoscopy is the most common procedure to detect and diagnose colon diseases, such as colorectal cancer. However, endoscopists are occasionally unable to reach some areas in the colon to thoroughly examine the colon, especially the cecum. The significance of the distal tip extension mechanism (DTEM) arises when the insertion tube of the colonoscope is no longer able to move further inside the colon and when a longer insertion tube is needed. The main focus of this research is to investigate the development of a novel distal tip extension mechanism (DTEM). To characterize the performance of the DTEM, the ability of the DTEM to extend the distal tip of the colonoscope 16 cm is investigated. To determine the maximum number of turns that the extension knob needs to make in order to move the distal tip 16 cm, the DTEM is used to displace the distal tip in different colon configurations using the silicon tube of colonoscopy training model (CTM). To measure the effective of implanting the DTEM in the colonoscope on the flexibility of the insertion tube, a compliance test is performed. To find the bending radius and bending angle at which the DTEM fails to extend the distal tip 16 cm, bending tests are conducted. The DTEM could enable colonoscopists to reach spots in the colon within a 16 cm limit where regular colonoscopes usually fail. The experimentally collected data was presented and discussed to characterize the performance of the DTEM. The results showed that the DTEM is able to extend the distal tip 16 cm while the colon is in various configurations. Additionally, the impact of implanting the DTEM on the flexibility of the insertion tube was determined. The bending radius and the bending angle at which the DTEM was not able to move the distal tip 16 cm were pinpointed. The results of this research suggest that the DTEM will be an effective tool to help colonoscopists performing better colonoscopy. Furthermore, it will increase the completeness rate of colonoscopy. 2015-08-25 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1418314132 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1418314132 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Mechanical Engineering
Extension Mechanism
Colonoscopy
Distal Tip
Loops in Colon
Extension Knob
Telescoping Shaft
Extension Process
spellingShingle Mechanical Engineering
Extension Mechanism
Colonoscopy
Distal Tip
Loops in Colon
Extension Knob
Telescoping Shaft
Extension Process
Kadhim, Ibrahim F.
Development of a Distal Tip Extension Mechanism for Endoscopes
author Kadhim, Ibrahim F.
author_facet Kadhim, Ibrahim F.
author_sort Kadhim, Ibrahim F.
title Development of a Distal Tip Extension Mechanism for Endoscopes
title_short Development of a Distal Tip Extension Mechanism for Endoscopes
title_full Development of a Distal Tip Extension Mechanism for Endoscopes
title_fullStr Development of a Distal Tip Extension Mechanism for Endoscopes
title_full_unstemmed Development of a Distal Tip Extension Mechanism for Endoscopes
title_sort development of a distal tip extension mechanism for endoscopes
publisher Ohio University / OhioLINK
publishDate 2015
url http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1418314132
work_keys_str_mv AT kadhimibrahimf developmentofadistaltipextensionmechanismforendoscopes
_version_ 1719437408186925056

Similar Items