Patent ID: 8496617

Claim:
A balloon inflation device comprising a syringe ( 2 ) having a syringe barrel ( 4 ) and a syringe piston ( 6 ) slidably and rotatably movable in said syringe barrel ( 4 ), the piston ( 6 ) having exterior threading ( 28 ) on at least a section of its length, the syringe barrel further comprising a retractable mechanism ( 30 ) for the retention of the piston ( 6 ) in the syringe barrel, which mechanism ( 30 ) is switchable between a retracted state in which the piston ( 6 ) is free to slide in the syringe barrel and an active state in which the free sliding of the piston ( 6 ) is impossible and in which the piston ( 6 ) can be screwed or unscrewed in the syringe barrel ( 4 ), the device further comprising a pressure gauge ( 104 ) for measuring the output pressure of the syringe barrel ( 4 ) wherein the pressure gauge ( 104 ) is mounted movable relative to the syringe barrel ( 4 ), such that the pressure gauge rotates around a surface of the syringe barrel ( 4 ), and wherein the device comprises a cap ( 102 ) delimiting a through-conduit ( 106 ) into which a pressure intake ( 108 ) opens, the pressure gauge ( 104 ) being connected to the output of the pressure intake, and in that the cap ( 102 ) is mounted movable in rotation around the syringe barrel ( 4 ).