The positioning, intervention, and/or exploration device has two endpieces
(6a-6d, 7) and at least one cable (20) extending from one endpiece to the
other (6a-6d, 7), it has at least two bellows (10) each fixed directly to
both of the endpieces and it has means (12, 18) for modifying the pressure
of a fluid in each of the bellows independently of the other bellows.