Patent ID: 7597705

Claim:
A method of sealing a tissue puncture in an internal tissue wall accessible through a percutaneous incision, comprising: providing a tissue puncture closure device comprising a carrier tube with a filament extending therethrough, an insertion sheath, an anchor, and a sealing plug, the filament connected at a distal end of the carrier tube to the anchor, the anchor seated in a multi-level nest disposed in the carrier tube, the filament also connected to the sealing plug, the sealing plug being located proximal of the anchor for disposition and anchoring about the tissue puncture, wherein the multi-level nest comprises: a first surface contacting the anchor; a second surface spaced from the anchor in a direction radially inward relative to the first surface when the anchor is in an undeployed position; wherein the first surface and the second surface are part of an outer surface of the carrier tube; inserting the tissue puncture closure device into the percutaneous incision; deploying the anchor into the tissue puncture by advancing the anchor at least partially out of a distal end of the insertion sheath followed by inserting a portion of the insertion sheath between the anchor and at least one of the first and second surfaces of the multi-level nest to rotate the anchor into a deployed position; withdrawing the closure device from the percutaneous incision; and tamping the sealing plug toward the anchor.