In micro- or ultrafiltration, concentration polarisation and fouling mostly remain responsible for efficiency loss. An easy-to-use process based on the modification of the membrane inner surface with a helix geometry configuration allowed us to increase turbulence, and thus to limit the polarisation layer formation. Variations in this geometry have been tested in microfiltration and the results have been compared with those obtained with a classical smooth membrane. The efficiency of the stamped membrane depends on both the stamp geometry and a filtration parameter such as the feed rate. First permeation results show that the permeate flux can be multiplied by a factor of 6.