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[Comparative study of two latest generation flexible ureterorenoscopes]
Olivier Traxer1, Federico Pasqui, Francis Dubosq
1Service d'Urologie, Hôpital Tenon, Paris, France. olivier.traxer@tnn.ap-hop-paris.fr
Summary
This study compared two flexible ureterorenoscopes, finding the DUR-8 Elite offered greater deflection but was harder to use. Both devices showed similar changes in deflection and irrigation flow when instruments were used.
Area of Science:
- Urology
- Medical Device Technology
Background:
- Advancements in flexible instruments have driven the development of flexible ureterorenoscopy.
- New generations of flexible ureterorenoscopes offer improved capabilities for minimally invasive procedures.
Purpose of the Study:
- To compare the active deflection capabilities of two latest-generation flexible ureterorenoscopes: the Karl STORZ Flex-X and the ACMI DUR-8 Elite.
- To evaluate how instrument insertion affects deflection and irrigation fluid flow in these devices.
Main Methods:
- Ex situ comparison of deflection movements for both ureterorenoscopes.
- Assessment of deflection and irrigation flow alterations with variable-sized instruments in the operating channel.
Main Results:
- The ACMI DUR-8 Elite demonstrated superior ex situ deflection compared to the Karl STORZ Flex-X, though it presented greater manipulation complexity.
- Both ureterorenoscopes exhibited comparable alterations in deflection and irrigation fluid flow when instruments were utilized.
Conclusions:
- Latest-generation flexible ureterorenoscopes possess comparable functional capacities but differ in handling characteristics.
- Urologists are encouraged to trial both devices to ascertain preferred manipulation and usability.
- Further research is needed on optical properties, clinical ease of use, and device durability.