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External steerable fiber for use in endoluminal deployment of expandable devices

  • US 9,770,322 B2
  • Filed: 11/19/2013
  • Issued: 09/26/2017
  • Est. Priority Date: 03/13/2012
  • Status: Active Grant
First Claim
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1. A method of deploying a stent graft along a vessel having a flow lumen, said method comprising:

  • providing an expandable stent graft including stent components along a leading portion of a catheter and constraining the stent graft toward a delivery configuration suitable for endoluminal delivery;

    actuating a constraint mechanism to allow partial deployment of the stent graft toward an intermediate configuration sized between the delivery configuration and a fully deployed configuration;

    wherein the constraint mechanism includes a primary sleeve wrapped circumferentially around the expandable stent graft to constrain the expandable stent graft toward the collapsed configuration, the primary sleeve comprising a sheet of material having first and second major surfaces and a plurality of openings extending from the first major surface to the second major surface; and

    actuating a steering line, threaded through the expandable stent graft on a first side of the stent components at a first location and on an opposite second side of the stent components at a second location, the steering line arranged in a helical pattern along a length of the expandable stent graft and the steering line at least disposed between the expandable stent graft and the primary sleeve, to form a bend along at least a proximal portion of the stent graft to align at least the proximal portion of the stent graft orthogonally relative to the flow lumen of the vessel.

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