In vitro Comparison of the Mechanical and Optical Characteristics of 5 Disposable Flexible Ureteroscopes
Issued Date
2024-01-01
Resource Type
ISSN
00421138
eISSN
14230399
Scopus ID
2-s2.0-85196722964
Pubmed ID
38599181
Journal Title
Urologia Internationalis
Rights Holder(s)
SCOPUS
Bibliographic Citation
Urologia Internationalis (2024)
Suggested Citation
Phromprathum P., Srinualnad S., Leewansangtong S., Taweemonkongsap T., Phinthusophon K., Jitpraphai S., Ramart P., Woranisarakul V., Suk-Ouichai C., Mankongsrisuk T., Hansomwong T., Jongjitaree K., Chotikawanich E. In vitro Comparison of the Mechanical and Optical Characteristics of 5 Disposable Flexible Ureteroscopes. Urologia Internationalis (2024). doi:10.1159/000538760 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/99235
Title
In vitro Comparison of the Mechanical and Optical Characteristics of 5 Disposable Flexible Ureteroscopes
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Abstract
Introduction: Disposable (single-use) flexible ureteroscopes are alternatives to reusable ureteroscopes. With their superior surgical efficacy and safety in the presence of upper urinary calculi, disposable ureteroscopes aim to overcome the main limitations of conventional reusable ureteroscopes. However, studies on the performance of the most recently developed models of single-use flexible ureteroscopes are scarce. This study aimed to compare the in vitro performance of several recently introduced, single-use, flexible ureteroscopes. Methods: Five disposable flexible ureteroscopes were tested in vitro to evaluate their mechanical and optical characteristics. To this end, their degrees of deflection, irrigation flow rates, and image qualities were investigated. The models examined were Innovex US31-B12, OTU-100RR, Redpine RP-U-C12, Sciavita SUV-2A-B, and Seplou URS3016E. Their performance was also compared with that of a reusable flexible ureteroscope, Olympus URV-F. Results: The OTU device had the highest degrees of deflection and the smallest loop diameter of the disposable ureteroscopes. The single-use ureteroscopes had identical image resolutions at a distance of 1 cm. The Innovex and Redpine devices had the best color representation. Conclusions: Of the tested disposable ureteroscopes, the OTU device had the best mechanical attributes, given its small loop diameter, high deflection angles, and low irrigation flow loss. As to their optical properties, the resolutions of all 5 single-use models were identical at an image distance of 1 cm.