STENT-GRAFT SECUREMENT DEVICE

• US 20100324647A1
• Filed: 06/23/2009
• Published: 12/23/2010
• Est. Priority Date: 06/23/2009
• Status: Active Grant

• Current Assignee: Cardinal Health Switzerland 515 GmbH (Cardinal Health, Inc.)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Rincon, Cesar
• Granted Patent: US 8,771,333 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/9526 using a mandrel
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2250/0036 differing in thickness

Abstract

A stent attachment and deployment mechanism is utilized to prevent the distal end of an endoprosthesis comprising fixation barbs or other fixation mechanism from deploying prior to the remaining sections of the fixation device. With this stent attachment and deployment mechanism accurate deployment may be achieved.

Claims

1. A stent-graft securement device for a catheter based stent-graft delivery system, the stent-graft securement device comprising:

a holding device which is integral with the catheter based stent-graft delivery system, the holding device including a wire holder slidably engaged to an inner member of the catheter based stent-graft delivery system, engagement wires, a wire guide fixedly mounted to the inner member of the catheter based stent-graft delivery system distal to the wire holder, and a distal receiver fixedly mounted to the inner member of the catheter based stent-graft delivery system distal from the wire guide; and

eyelets integral with a stent-graft and extending from the end thereof, the engagement wires originating from the wire holder, passing through the wire guide, the eyelets and into distal receiver, the wire holder being configured to move proximally, thereby retracting the engagement wires from the distal receiver and eyelets and into the wire guide.

2. The stent-graft securement device according to claim 1, further comprising a wire release connected to the wire holder and extending proximally therefrom.

3. The stent-graft securement device according to claim 2, wherein the eyelets are configured as substantially triangular structures angled axially inward.