The invention relates to a multifunctional device for exploration and/or intervention, especially for medical use, comprising a hollow handle, which is continued by a main catheter, and a carriage which is mounted so as to slide along the handle and which is coupled to an instrument by a mechanical connection extending inside the main catheter. According to the invention, at least one intermediate carriage is mounted so as to slide along the handle, each of said intermediate carriages having an attachment housed in the handle via a longitudinal slot, in the continuation of which there is a secondary catheter extending inside the main catheter. Moreover, an auxiliary carriage is mounted so as to slide along each intermediate carriage, each of said auxiliary carriages being coupled to an instrument by a mechanical connection extending inside the secondary catheter.
