An assembly of sterile devices intended to be used in conjunction with manual compression to facilitate haemostasis to the puncture site on a patient having undergone femoral artery catheterization. It typically consists of a dedicated catheter with an elastomeric membrane at the distal tip and a tensioner. The catheter is inserted through the previously placed catheter introducer sheath and, once positioned, the membrane is deployed in the inner lumen of the femoral artery. Tension is applied to keep the membrane against the arteriotomy while the natural mechanisms of haemostasis are enacted. Once haemostasis is achieved, this device is removed. This is a single-use device.