A blood filtering device (1) for the recuperation of blood from wound drained blood, in particular for an autologous blood transfusion system, has a first filter (7) arranged upstream of a second filter (8), the first filter (7) being adapted for removing emboli and/or large particulate matter from the blood and for allowing red blood cells to pass, the second filter (8) being adapted for retaining red blood cells, an exit port (6) arranged downstream of the first filter (7) and upstream of the second filter (8). The device is characterised in that the second filter (8) has a pore size of more than about 0.5 µm. A method of recuperating blood from wound drained blood is also disclosed.
