I think that it might be effective. Since the goal of the puncture is to reach a specific point in space. Then, if I can train in this model and reach the tip of the glove's finger, I can puncture a calyx.
I guess the currently available virtual reality simulators such as Uro/Perc Mentor is a wonderful tool for acquisition of such skills without risk of radiation exposure. However, it is much expensive.
Yes, you are right; however it is very expensive, and it is impossible to have in our department.
we perform the puncture without moving the C-arm (in a fixed position), with the X-ray beam perpendicular to the tract. This model give us the same thing and I have used it in many small workshops and the urologist were confident to start puncture and even, some were quicker to perform their first real puncture.