Dilator for application in medical field

A dilator for the application in medical field, comprising an at least partially hollow body made of an elastically deformable material and defining a cavity and having a distal and a proximal end thereof, duct means for hydropneumatically connecting the cavity of said body to a source of pressurized fluid, valve means for controlling the hydropneumatical communication between said cavity and said source and the outside, said body expanding when positioned in situ and when in hydropneumatic communication with said source of pressurized fluid and being thereby effective to dilate the corporeal application field and wherein said hollow body is an elongated body, said duct means include a substantially rigid tubular duct sealingly connected with one end thereof to said proximal end of said body, a control body connected to the other end of said substantially rigid tubular duct, quick release latching means for maintaining the connection between said control body and said substantially rigid tubular duct, said control body having connected therewith an inlet duct for the fluid under pressure and an outlet duct therefor and a slide distributor controlling the flow of pressurized liquid therethrough.