A kind of system includes guide, which is configured to enter the seal wire of blood vessel and be inserted through puncturing hole along extending through puncturing hole. Guide includes guide ontology, nearside cone point, along the central axis distal side cone point opposite with nearside cone point and along central axis, proximally cone point extends to the hole of distal side cone point. The system comprises be configured to be inserted on guide to enter sheath. It include front end, the rear end opposite with front end and the inner cavity for extending to from front end rear end into sheath. The nearside cone point of guide is configured to insertion front end and is passed into the inner cavity of sheath, so that obtaining moveable interference fit entering between sheath and guide.
