Tissue puncture closure device

摘要

The present disclosure relates generally to methods and devices for closing and/or sealing an opening in a vessel wall and/or an adjacent tissue tract. In one illustrative embodiment, a device is provided for delivering and deploying an anchor, plug, filament, and locking element adjacent to the opening in the vessel wall and/or tissue tract.

主权项

1. A method of sealing an opening in a vessel wall with an anchor, a filament, a locking element, and a plug comprising:
inserting an insertion sheath through a tissue tract and into a vessel; coupling a distal end of the filament to the anchor, wherein a proximal end of the filament is coupled to an implantation device; disposing the plug about the filament proximal of the anchor; inserting a device sheath of the implantation device into the insertion sheath, the device sheath configured to house the filament and the plug prior to deployment, wherein the anchor is configured to pass through the insertion sheath to a position distal the insertion sheath when the device sheath is inserted into the insertion sheath; inserting a proximal end of the insertion sheath into a distal end of an implantation device handle as the device sheath is inserted into the insertion sheath; seating the proximal end of the insertion sheath within the implantation device handle to release a torsion spring disposed within the implantation device handle, wherein the torsion spring is configured to actuate a mechanism, wherein the mechanism automatically locks the insertion sheath to the implantation device handle and then automatically seats the anchor against a beveled distal end of the insertion sheath; positioning the anchor against an interior surface of the vessel wall adjacent to the opening; compressing the plug against the anchor;positioning the locking element adjacent to the plug; andreleasing the filament from the implantation device, wherein the filament is automatically released when the plug has been compressed.