Vascular sealing apparatus

A method for closing of an aperture in a patient's blood vessel through an introducer predisposed in the blood vessel aperture, the introducer being of a type having an axial lumen opening to a distal insertion end adapted for location in the blood vessel aperture, and a fluid injection port being communicatively connected to the introducer lumen;

• comprising the steps of:
• a. providing a medical sealing apparatus, comprising:
• i. a thin, elongated conduit having a central lumen, said conduit having proximal and distal ends, said conduit distal end being insertable into the patient body aperture and having an inflation segment including an external orifice which is communicatively connected to said lumen;
• ii. an expandable member sealingly disposed at said conduit distal end inflation segment, said expandable member being inflatable to a predetermined diameter;
• and
• iii. means to connect said conduit lumen to an external inflation source, said means to connect being disposed at said proximal end of said conduit;
• b. inserting said apparatus through the introducer lumen and into the blood vessel aperture, said apparatus conduit being extended through said introducer lumen so that said apparatus expandable member is disposed outwardly beyond said introducer distal insertion end;
• c. inflating said expandable member;
• d. moving said expandable member into contact with the blood vessel aperture;
• and
• e. introducing procoagulant into said introducer lumen via said fluid injection port and distributing said procoagulant out said distal insertion end.