Patent ID: 8409248

Claim:
An apparatus for sealing a passage through tissue in a body, comprising: an elongate delivery device comprising a lumen extending between proximal and distal ends thereof; a plug member detachably carried by the distal end of the delivery device and comprising a lumen communicating with the lumen of the delivery device, wherein the plug member is configured to be inserted through the tissue; a guide wire element comprising a proximal end receivable through the lumens in the plug member and the delivery device, the guide wire element comprising a plurality of lateral elements on a distal portion thereof, the plurality of lateral elements having an expanded position and a collapsed position substantially parallel to the delivery device; and a visual indicator located on a proximal portion of the guide wire element and spaced from the proximal end of the guide wire element and configured for indicating the position of the plug member relative to the plurality of lateral elements in the expanded position.