The invention relates to a device for inserting an inflatable balloon which comprises a main body of revolution (12) which defines a cone-shaped distal end and a proximal end, said main body also comprising: a first internal channel (123) passing from the proximal end to the distal end of said body for inserting a thread (3) for guiding said device； an internal compartment (125) arranged in a portion of the distal end of said body for housing an inflatable balloon (4), said compartment comprising a breakable outer surface (1251) which is continuous with the surface of said body, and a second internal channel passing from the distal end of said body to said compartment, for housing a balloon inflation tube (5) suitable for connection at the distal end thereof with an inflatable balloon inside said compartment.
