AUTHOR=Hao Jin-Yong , Zhang Yao-Ping , Huang Xiao-Jun 

TITLE=Design and Development of a Disposable Superfine Catheter for Visual Examination of Bile Ducts and Related Animal Experiments

JOURNAL=Frontiers in Surgery

VOLUME=9

YEAR=2022

URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2022.877040

DOI=10.3389/fsurg.2022.877040

ISSN=2296-875X

ABSTRACT=<sec><title>Objective</title><p>To design and develop a disposable superfine catheter system for visual examination of bile and pancreatic ducts and predict its clinical application value.</p></sec><sec><title>Methods</title><p>The superfine triple-lumen catheter and miniature photography technology were used to design and produce a disposable superfine catheter for visual examination of bile and pancreatic ducts, and animal experiments were conducted to compare said catheter and SpyGlass™.</p></sec><sec><title>Results</title><p>The designed and developed disposable superfine catheter for visual examination of bile ducts with a diameter of 2.4 mm could enter the third-order and fourth-order bile ducts in the animal liver and also the gallbladder via the cystic duct for observation. The said catheter has a water injection rate of 0.8 mL/s, 0.16 megapixels, a resolution of 400 × 400, a depth of field of 0.3 to 20 mm, and a tilting up angle &gt;90°.</p></sec><sec><title>Conclusion</title><p>The new disposable catheter for visual examination of bile ducts has a superfine diameter, easier operation, and clearer imaging, and is expected to have a higher clinical practical value.</p></sec>