US 12,138,151 B2
Constraint arrangement for a stent-graft loaded onto a delivery system
Werner Dieter Ducke, Queensland (AU)
Assigned to COOK MEDICAL TECHNOLOGIES LLC, Bloomington, IN (US)
Filed by Cook Medical Technologies LLC, Bloomington, IN (US)
Filed on Feb. 28, 2022, as Appl. No. 17/682,722.
Claims priority of application No. 2021201336 (AU), filed on Mar. 2, 2021.
Prior Publication US 2022/0280280 A1, Sep. 8, 2022
Int. Cl. A61F 2/07 (2013.01); A61F 2/95 (2013.01)
CPC A61F 2/07 (2013.01) [A61F 2/95 (2013.01); A61F 2002/9511 (2013.01); A61F 2220/0075 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A constraint arrangement for a stent-graft loaded onto a delivery system, the stent-graft having a graft defining an elongate lumen, a plurality of stents and at least one positionable region adjacent to a feature, the delivery system having a cannula and a release wire, the constraint arrangement comprising:
at least one suture extending at least partially circumferentially around a surface of the graft from a first fixed end fixed to the stent-graft to the positionable region, and through the graft at a first constraining perforation into the lumen and returning out of the lumen to the surface of the graft at a second constraining perforation to a second fixed end fixed to the stent-graft and circumferentially spaced from the first fixed end, thereby forming a loop portion of the at least one suture within the lumen,
the loop portion wrapped circumferentially around the cannula such that a pair of legs of the loop hold the positionable region with respect to the cannula,
wherein a bight of the loop portion extends through a gap between the legs and wherein the release wire extends through the bight thereby capturing the bight and releasably securing the loop portion around the cannula.