A haemostasis device for a body cavity comprising - a tubular conduit (1) having a distal end (2) and a proximal end (3), - a distal balloon (6) and a proximal balloon (7) - three tubes for supplying or recovering fluid, one part of the length of which is installed in the tubular conduit, the distal balloon (6) and the proximal balloon being spaced apart coaxially along the conduit, the distal balloon (6) being installed at the distal end of the tubular conduit, the proximal balloon being installed in a liquid-tight manner around a portion of the tubular conduit, one (5) of the three tubes opening into the distal balloon (6), another (8) of the three tubes opening into the proximal balloon, the third of the three tubes (9, 10) opening into a space outside the conduit, located between the distal balloon (6) and the proximal balloon (7).
