A percutaneously insertable system for sealing punctures in blood vessels includes an element that is percutaneously insertable into and deplorable within a blood vessel, a thread-like member attached to the element that passes through the wall of the blood vessel and arresting element moveable on the...http://www.google.co.uk/patents/US5620461?utm_source=gb-gplus-sharePatent US5620461 - Sealing device