Pressure reduction and suction characteristics of the new digital single use flexible ureteroscope with suction: an in-vitro experimental study
Por:
Martinez, BB, Dragos, L, Tatanis, V, Somani, B, Martinez, PC, Angerri, O, Peteinaris, A, Tsaturyan, A, Kanashiro, A, Valverde, M, Serrano, MCG, Vivo, JL, Arteaga, SF, Liatsikos, E, Kallidonis, P
Publicada:
12 nov 2024
Resumen:
PurposeTo assess the time taken by the single use 7.5Fr suction flexible ureteroscope to reduce pressure under 40 mm Hg and to characterize the behavior of stones, fragments and dust during suction activation.MethodsAn in vitro setting was developed for this experiment. A saline-filled globe, with the 7.5Fr single-use suction flexible ureteroscope, PU3033AH (ZhuHai Pusen Medical Technology Co, Ltd, Guangdon, China), an automatic irrigation pump and a pressure monitoring set were used at four modalities; i) continuous suction, no irrigation inflow; ii) continuous suction, irrigation inflow on; iii) one-second rate intermittent suction, irrigation inflow on, and iv) half-second rate intermittent suction, irrigation inflow on. The behavior of calcium oxalate stones from 0.5 to 5 mm when being aspirated via the ureteroscope into a plastic container filled with saline was recorded.ResultsSuction with the PU3033AH worked properly with the inflow irritation on. The fastest strategy to lower the pressure was by continuously pressing the suction button with the irrigation inflow on. Overall, the median time to reach 40 mg was roughly 3.5 s. The PU3033AH could aspirate 0.5 mm stones. The suction mode on a continuous pattern allowed the relocation of stones ranging from 1 to 5 mm on an experimental setup with no obstacles.ConclusionThe PU3033AH was efficient in lowering pressure in a closed cavity mimicking the renal pelvis. Likewise, stone fragments under one millimeter were aspirated by the device whereas stones from one to five mm could be displaced when activating suction in continuous mode on an experimental setup with no obstacles.
Filiaciones:
Martinez, BB:
Univ Hosp Vinalopo, Dept Urol, Alicante, Spain
Dragos, L:
Univ Cambridge NHS Fdn Trust, Cambridge, England
Tatanis, V:
Univ Patras, Dept Urol, Patras, Greece
Somani, B:
Univ Hosp Southampton NHS Fdn Trust, Dept Urol, Southampton, England
Martinez, PC:
Univ Hosp Vinalopo, Dept Urol, Alicante, Spain
Angerri, O:
Fundacio Puigvert, Dept Urol, Barcelona, Spain
Peteinaris, A:
Univ Patras, Dept Urol, Patras, Greece
Tsaturyan, A:
Erebouni Med Ctr, Dept Urol, Yerevan, Armenia
Kanashiro, A:
Fundacio Puigvert, Dept Urol, Barcelona, Spain
Valverde, M:
Univ Hosp Vinalopo, Dept Urol, Alicante, Spain
Serrano, MCG:
Univ Hosp Vinalopo, Dept Intervent Radiol & Haemodinam, Alicante, Spain
Vivo, JL:
Univ Hosp Vinalopo, Dept Urol, Alicante, Spain
Arteaga, SF:
Hosp Univ Ntra Sra Candelaria, Dept Urol, Tenerife, Spain
Liatsikos, E:
Univ Patras, Dept Urol, Patras, Greece
Med Univ Vienna, Dept Urol, Vienna, Austria
Kallidonis, P:
Univ Patras, Dept Urol, Patras, Greece
Green Submitted
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