Abstract: A percutaneous device for achieving hemostasis in a vessel, particularly a device for achieving hemostasis following the failure of a vascular closure device has a catheter with an attached inflation device. The catheter preferably has two different lumens, one for a guide wire and one for fluid used to inflate the inflation device. When inflated, the inflation device unfurls to block the puncture in the blood vessel. Distal blood flow continues uninterrupted with the device in the furled and unfurled state, preventing any issues distally from the puncture site.