A sterile, implantable, bioabsorbable device designed for haemostasis/closure of a puncture site, through pressure/compression, on a patient having undergone femoral artery catheterization; it is intended as an alternative to manual compression or surgical techniques to reduce the time to haemostasis. It consists of an animal-derived collagen plug that is implanted using an included delivery device (e.g., guidewire, hand-held delivery unit) onto the extravascular surface of the femoral artery access site (top of arteriotomy site), and may be held in place with an included synthetic, bioabsorbable patch/anchor/suture to achieve haemostasis.