A Prospective Randomized Study Comparing Disposable with Reusable Blades for a Morcellator Device

Abstract

The Piranha morcellator facilitates efficient tissue removal with single-use and reusable blades. Disposable morcellator blades increase tissue removal significantly at 1500 rpm.

Morcellation After Endoscopic Enucleation of the Prostate: Efficiency and Safety of Currently Available Devices

“…All studies reported morcellation efficiency as grams per minute (g/min). For the Piranha device, the weighted mean efficiency among the studies was 5.29 (range 2.7-20) g/min [23,25,[38][39][40][26][27][28][29][30][31]36,37]. A comparison of the en bloc (2.7 AE 1.3 [range 0.6-6.9] g/min) and two-lobe techniques (2.8 AE 1.8 [range 0.6-7.1] g/min) showed no significant difference in overall efficiency [31].…”

“…The mean patient age was 67.4 (range 61.4-72.8) yr. The Piranha morcellator was used in 13 studies for treatment of 2644 patients [23,[25][26][27][28][29][30][31][36][37][38][39][40], while VersaCut was utilized in 17 studies in treating 2907 patients [16][17][18][19][20][21][22]24,[33][34][35][36][37][38][39][40][41]. The DrillCut device was investigated in two studies for treatment of 101 patients [32,41].…”

“…Six studies were of comparative nature, with comparison of Piranha versus VersaCut in five [36][37][38][39][40] and of DrillCut versus VersaCut in one [41]. The remaining 20 studies investigated a single morcellator and partly included subgroups to compare, for example, different blade types [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. Table 1 presents a summary of patient demographics, baseline characteristics, and perioperative outcomes.…”

Hawk® JAWS versus Lumenis® VersaCut prostate morcellation devices: A comparative study and comprehensive literature review

“…These include VersaCut (Lumenis Inc., Santa Clara, USA), Piranha (Richard Wolf Inc., Knittlingen, Germany), and DrillCut (Karl Storz Inc., Tuttlingen, Germany) morcellators (18,19). The differences between morcellators are mainly related to blade movements of the morcellator (reciprocating vs. oscillating) and the presence of teeth on the blade (non-toothed vs. toothed) (8,10). The oscillating system has a rotating morcellator with a disposable jagged blade that oscillates alongside.…”

“…HoLEP studies in the literature mostly focus on enucleation and its techniques. Although morcellation is a standard procedure of Ho-LEP and the step that entails the highest risk of complications, studies on morcellation and morcellators used are limited in number (8,10,11). The importance of morcellation has become evident as it is a variable that directly affects the duration of surgery and, thus, anaesthesia, especially in patients with a large prostate.…”