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Apposition fiber for use in endoluminal deployment of expandable implants

  • US 10,117,765 B2
  • Filed: 06/13/2012
  • Issued: 11/06/2018
  • Est. Priority Date: 06/14/2011
  • Status: Active Grant
First Claim
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1. A catheter assembly comprising:

  • a catheter having a leading end and a trailing end and comprising a main lumen extending between the leading end and the trailing end and a side port;

    an expandable implant having a proximal end and a distal end and positioned between the leading end and trailing end of the catheter, the expandable implant having a collapsed configuration for endoluminal delivery of the expandable implant to a treatment site and an expanded configuration having a diameter larger than the diameter of the collapsed configuration,wherein the side port is located along the main lumen of the catheter at a position between the proximal end and the distal end of the expandable implant;

    a primary sleeve wrapped circumferentially around the expandable implant, wherein the primary sleeve comprises 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

    a primary coupling member cooperating with the plurality of openings of the sheet for releasably coupling portions of the sheet to one another to constrain the expandable implant in the collapsed configuration;

    a lockwire arranged through the expandable implant adjacent at least one of the proximal end and the distal end thereof, the lockwire being configured to releasably couple the expandable implant to the catheter; and

    at least one apposition line including an eyelet through which the lock wire is arranged and being configured to maintain a longitudinal curvature of the expandable implant during expansion of the expandable implant and release when the lockwire is disengaged from the catheter, the at least one apposition line being arranged to extend through the main lumen of the catheter and through the side port of the catheter to engage at least a portion of the expandable implant through a wall of the expandable implant near the distal end and return to the main lumen of the catheter through the side port during engagement of the at least one apposition line with the expandable implant.

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