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System and method for endoluminal grafting of bifurcated or branched vessels
| Details |
Inventors: Wisselink, Willem;
Assignee:
Primary Examiner: Willse; David H.
Assistant Examiner: Jackson; Suzette J.
Attorney, Agent or Firm: Buyan; Robert D. Stout, Uxa, Buyan & Mullins, LLP
A system and method for endoluminal grafting of a main anatomical conduit (e.g., the aorta) and various branch conduits (e.g., side branch vessels such as the carotid, innominate, subclavian, intercostal, superior mesenteric, celiac, or renal arteries-or furcations such as the iliac arteries) which emanate from the main anatomical conduit. The grafting system generally comprises i) a primary graft having at least one opening therein and ii) at least one branch graft which is passable through the opening of the primary graft and into the branch conduit(s) such that the proximal end of each branch graft is in substantially fluid-tight sealing contact with the primary graft. Also disclosed is a specific system and method for grafting a bifurcated anatomical conduit (e.g., the aorto-iliac bifurcation) though only a single access opening (puncture site or incision) and a new balloon-anchorable guidewire system which is useable in the performance of such grafting of bifurcated anatomical conduits and numerous other medical procedures. |
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DETAILED DESCRIPTION The present invention provides a system and method for edoluminal grafting of a blood vessel or other anatomical conduit, in a region where one or more branch anatomical conduit(s) (e.
g.
, side branches, furcations, etc.
) extend from the anatomical conduit.
In accordance with the present invention, there is provided an endoluminal grafting system which comprises: a) a primary graft which comprises; i) a first pliable tube (e.
g.
, a tube formed of woven polyester, expanded polytetrafluoroethylene (ePTFE), or other biocompatable material) having a lumen extending longitudinally therethrough; ii) at least one branch opening (e.
g.
, an aperture) formed in the first pliable tube; iii) a first connector (e.
g.
, a groove, slot, depression, or other engageable surface) associated with (e.
g.
, formed around or positioned adjacent to) the branch opening; and, iv) a primary graft anchoring device (e.
g.
, a radially expandable stent, frame, series of rings, and/or adhesive, suture(s), staple(s), etc.
for holding the graft in place) which is operative to hold the first pliable tube in a substantially fixed position within the lumen of the anatomical conduit, such that the branch opening is in alignment with the branch anatomical conduit; and, b) a branch graft which comprises; i) a second pliable tube having a proximal end, a distal end, and a lumen extending longitudinally therethrough; ii) a second connector (e.
g.
, a ring, rib, ridge, protrusion or other engageable surface) associated with the proximal end of the second pliable tube, said second connector being engageable with said first connector to connect the proximal end of the second pliable tube to the first pliable tube such that fluid which flows through the lumen of the primary graft may pass through said branch opening and into the lumen branch graft.
In some applications, it will be desirable for the branch graft component of the above-summarized endoluminal grafting system to further include, or to be used in conjunction with, iii) a branch graft anchoring device (e
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Heart Surgery 
