FlexGuard: a new laser insertion sheath: functional aspects in ureterorenoscopy (URS)
T R W Herrmann1, T Bach, F Imkamp
1Klinik für Urologie, Medizinische Hochschule Hannover, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany. herrmann.thomas@trwh.de
World Journal of Urology
|June 6, 2007
Summary
A new FlexGuard sheath protects flexible ureteroscopes from laser fiber damage during upper urinary tract procedures. This device prevents ureteroscope damage, reducing maintenance costs and ensuring instrument durability.
Area of Science:
- Urology
- Medical Devices
- Minimally Invasive Surgery
Background:
- Flexible ureteroscopes are crucial for managing upper urinary tract abnormalities.
- Instrument durability and maintenance costs are significant concerns in ureteroscopy.
- Damage from incorrect laser fiber use is a major issue affecting ureteroscope longevity.
Purpose of the Study:
- To introduce and evaluate a novel device, the FlexGuard laser fiber insertion sheath.
- To assess the device's ability to prevent damage to flexible ureteroscopes during laser fiber insertion.
- To determine if the device impacts ureteroscope maneuverability and working channel integrity.
Main Methods:
- A laser fiber was inserted into the FlexGuard sheath (2.7 F outer diameter).
- The loaded sheath was passed through the working channel of various flexible ureteroscopes at maximum deflection.
- Ureteroscope working channel integrity and radius of curvature were assessed post-procedure.
Main Results:
- The laser fiber was inserted without scratching or resistance.
- No damage to the ureteroscope working channel inner surface was observed.
- The ureteroscope's radius of curvature remained stable during and after sheath removal.
Conclusions:
- The FlexGuard insertion sheath effectively prevents damage from laser fiber manipulation.
- This device enhances the durability of flexible ureteroscopes.
- It offers a solution to reduce repair costs and improve instrument longevity in ureteroscopic procedures.