The present invention relates to an elongated steerable system (1) for guiding a catheter or an endoscope, comprising: an elongated flexible member (10) comprising at least one projection (110) along at least a part of its longitudinal axis； said at least one projection (110) having a distal end and a proximal end, and defining two lateral sides； and a wire； wherein said at least one projection (110) comprises at least one transverse retaining and passing means (114) near the distal end of said projection； and the wire passes through said retaining and passing means (114) alternatively from one lateral side of the projection to the other lateral side of the projection, wherein adherence between the wire and the retaining and passing means (114) retains the wire ensuring the anchorage of the wire to said retaining and passing means (114).
