The invention relates to a single-use device, intended to be used in surgery each time a vascular approach by cannulation or catheterization (extracorporeal circulation, anesthesia, emergency, intensive care) is found to be necessary, in particular in heart surgery or interventional cardiology. This new device essentially includes a body (5), a sealing system consisting of two inflatable disks (4), a control connector for inflating and deflating the disk (4), a tubular unit (6) and a flexible guide (1).
