A device (1) for removing air from an anatomical cavity (6) in a surgical intervention, comprising a flexible catheter (2) with one or more lumens (10, 11) having a proximal end (3) and a distal end (4), each lumen (10, 11) having one or more holes (12. 13) at a terminal portion (9) of the catheter (2) comprising the distal end (4), there being further provided an aspiration means (5) for aspirating air from the anatomical cavity (6), an insufflation means (7) for insufflating, into the anatomical cavity (6), an air replacement gas having a higher density than air, and a means (8) for lifting said terminal portion (9) of the catheter (2) for the placement thereof at the top of the anatomical cavity (6), the insufflation means (7) and said aspiration means (5) being connected to the proximal end (3) of the catheter (2).
