Patent ID: 8375553

Claim:
A method of manufacturing a device for sealing an opening in a vessel wall or tissue tract, the method comprising: obtaining an anchor member, a filament member, a plug member, a knot member, a compression bead, a hypotube having a lumen therein, and a formable collet locking ring; forming a plurality of slots in a distal end of the hypotube; attaching a distal end of the filament member to the anchor member; slidably disposing the plug member, the knot member, and the compression bead on the filament member; disposing the collet locking ring about the hypotube; obtaining a crimping fixture capable of forming the collet locking ring onto the distal end of the hypotube; disposing the anchor member, the filament member, the plug member, the knot member, the compression bead, the hypotube, and the collet locking ring into the crimping fixture such that the filament member is disposed within the distal end of the hypotube; positioning the collet locking ring about the plurality of slots in the distal end of the hypotube at a predetermined distance from the anchor member; operating the crimping fixture to form the collet locking ring onto the distal end of the hypotube; removing the device from the crimping fixture.