It all started at the end of 2018, during a meeting between members of InSimo and the Rheumatology team of Professor Gottenberg from Hautepierre Hospital (Strasbourg). A need was then identified: a training solution for medical procedures involving needle insertion, such as lumbar puncture. Indeed, these technical procedures are delicate, and cause stress both for the patient and for the doctor. The less this latter is trained, the more painful and source of complication the procedure can be. However, according to the “see one, do one, teach one” concept, medical students often still learn by practicing directly on patients. But the trend is changing. The French National Authority for Health now advocates “Never the first time on the patient”, and recommends the use of simulation to train students.