Shop by Class
At IMRA Surgical, we grade our hydrogel models from Class I to Class V — each level unlocking greater realism, complexity, and procedural capability.
No animal tissue. No ethical compromise.
Class I
Our entry-level hydrogel models are designed for first contact with surgical tools.
Whether you're a student learning anatomy for the first time, or an experienced surgeon picking up a robotic system for the first time — Class I gives you the space to cut, suture, and build the confidence you need before anything else.
Class II
Class II models isolate the most critical task within a procedure, so surgeons can master it without the noise of everything around it.
Need to learn how to remove a tumour? Start here. No surrounding steps, no complexity overload - just deliberate, component focused, task-specific repetition.
Partial Nephrectomy (Class II)
Partial Nephrectomy (Class II)
Class III
Once you've nailed the critical task, Class III turns up the difficulty.
More anatomy, more procedural steps, and greater complexity - designed to challenge surgeons who are ready to move beyond the basics and start connecting the dots.
Class IV
Where simulation starts to feel real.
Class IV delivers a full end-to-end procedure with extremely realistic tissue behaviour and anatomy.
The gap between simulation and reality starts to close here.
Partial Nephrectomy (Class IV)
Partial Nephrectomy (Class IV)
Class V
Hyper-realism. Tissue that is life-like.
Class V models feature full anatomy, full disease state, and end-to-end procedural training on tissue that is as close to human as synthetic can get.
Some models bleed. All of them perform. This is elite simulation.