The invention relates to a robotized module for guiding an elongate flexible medical device comprising a pair (33) of guide members (24, 24) either in a guide configuration or in a free configuration. The pair (33) of guide members (24, 24) can be moved between a first and a second position. A control device (18, 11) controls in cyclically repeated manner movement of the guide members (24, 24) in the guide configuration from the first to the second position and in the free configuration from the second to the first position.