Sheath Capture Device for Stent Graft Delivery System and Method for Operating Same

Abstract

A delivery system for delivering and deploying stent grafts having a proximal stent includes a first lumen and a stent capture device including a capture portion fixedly connected adjacent a first lumen distal end. An outer catheter has a catheter distal end and a catheter inner diameter. A second lumen having a second distal end is slidably disposed about the first lumen and within the outer catheter. A stent graft sheath has a sheath proximal end connected to the second distal end and disposed about the first lumen. The sheath has a sheath distal end and a sheath inner diameter greater than the catheter inner diameter for holding a compressed stent graft. A distal nose cone has a cone proximal end connected to either the capture portion or the first distal end. The nose cone and the capture portion are movably adjustable to selectively capture the sheath distal end therebetween.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application:[0002]is a divisional application of U.S. patent application Ser. No. 11 / 701,867, filed Feb. 1, 2007, and Ser. No. 11 / 828,653 and Ser. No. 11 / 828,675 filed Jul. 26, 2007, which applications claim the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application Nos. 60 / 765,449, filed Feb. 3, 2006, and 60 / 833,533, filed Jul. 26, 2006; and[0003]is a continuation in part of co-pending U.S. patent application Ser. Nos. 10 / 784,462, filed Feb. 23, 2004, and 10 / 884,136, filed Jul. 2, 2004, which applications claim the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Application Nos. 60 / 499,652, filed Sep. 3, 2003, and 60 / 500,155, filed Sep. 4, 2003,[0004]is a continuation in part of co-pending U.S. patent application Ser. Nos. 11 / 348,176, filed Feb. 6, 2006, Ser. No. 11 / 353,927, filed Feb. 13, 2006, Ser. No. 11 / 449,337, filed Jun. 8, 2006, Ser. No. 11 / 699,700, filed Jan. 30, 2007, Ser. No. 11 / 699,701, filed Jan. 30, 2007,...

AI Technical Summary

Benefits of technology

[0040]The invention provides a sheath capture device for an endovascular stent graft delivery system and a method for operating the device that overcome the hereinafore-mentioned disadvantages of the heretofore-known devices and methods of this general type and that provides a vessel repair device that implants/conforms more efficiently within the natural or diseased course of the aorta by aligning with the na

Problems solved by technology

Because blood flow within the lumen of the graft could be impaired if the framework was disposed on the interior wall of the graft, the framework is connected typically to the exterior wall of the graft.

One of the significant dangers in endovascular graft technology is the possibility of the graft migrating from the desired position in which it is installed.

When the introducer system holding the stent graft positioned in an appropriate location in the vessel and allowed to open, the radial force imparted by the self-expanding framework is helpful, but, sometimes, not entirely sufficient, in endoluminally securing the stent graft within the vessel.

Thus, the rips in the graft body can lead to the possibility of the exposed stent moving with respect to the gr

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