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US 10,092,391 B2Granted
Endoluminal prosthesis having modular branches and methods of deployment
AssigneesThe Cleveland Clinic Foundation, Cook Medical Technologies LLC
InventorsRoy K. Greenberg, Blayne A. Roeder
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Abstract
The present embodiments provide an endoluminal prosthesis having modular branches, and systems and methods for facilitating deployment of the endoluminal prosthesis. In one example, the endoluminal prosthesis comprises a graft including a bifurcated body of a biocompatible material. The bifurcated body includes distally extending limbs. Limb extensions can be longitudinally and circumferentially adjusted prior to mating with the limbs to enable an “off-the-shelf” prosthesis that can conform to various complex anatomy. When adjusted and mated, fenestrations in the limb extensions can align with branch vessels.
Claims24
A modular stent-graft apparatus, the apparatus comprising:
- a graft comprising biocompatible material, the graft having a proximal and distal end;
- a generally tubular proximal portion of the graft with a lumen extending therethrough;
- a first branch extending distally from the graft proximal portion;
- a second branch extending distally from the graft proximal portion;
- first and second limb portions of the graft extending distally from a bifurcation point of the proximal portion and having distal ends, the first and second limb portions each having lumens extending therethrough, the lumens of the limb portions being in fluid communication with the proximal portion lumen;
- at least one limb extension comprising biocompatible material, the at least one limb extension having a proximal end and a distal end and a lumen extending therebetween, the at least one limb extension dimensioned to engage one of the first and second limb portions;
- and
- at least one passageway though a sidewall of the at least one limb extension disposed between the proximal and distal ends of the at least one limb extension;
- wherein the first and second branches each have proximal and distal ends and a lumen extending therebetween that is in fluid communication with the graft proximal portion lumen;
- and
- wherein the first and second branches are disposed proximally from the bifurcation point and distally from the proximal end of the graft;
- wherein the first and second branches extend distally from the graft proximal portion outside of the graft proximal portion lumen;
- wherein the graft proximal portion and the first and second limb portions are one piece and part of a one piece single graft structure and define a bifurcated graft body such that the graft proximal portion and the first and second limb portions are deliverable as a single one piece unit;
- wherein at least a portion of the biocompatible material of the graft extends continuously from a proximal end of the proximal portion to a distal end of the first and second limb portions;
- wherein the graft has a delivery state and a deployed state, and the graft proximal portion and the first and second limb portions are part of the one piece single graft structure and compressed in the delivery state and deliverable as the one piece single graft structure while compressed, and the graft is expanded relative to the delivery state in the deployed state;
- wherein the one piece single graft structure is deliverable within a delivery sheath while compressed in the delivery state.
13 more elements
An endoluminal prosthesis, comprising:
- a graft having a bifurcated body comprising a biocompatible material, the graft having proximal and distal ends and a lumen extending therebetween, the bifurcated body having first and second limb portions extending distally from a generally tubular proximal portion;
- first and second distally extending branches extending from the proximal portion of the graft and outside of the lumen of the graft and providing fluid communication from the lumen of the graft;
- and
- a first limb extension attached to and extending distally from the first limb portion, the first limb extension having a passageway through a sidewall thereof;
- wherein the proximal portion of the graft and the first and second limb portions are one piece and part of a one piece single graft structure and the one piece single graft structure is compressed and in a delivery state and deliverable within a delivery sheath as the one piece single graft structure while compressed, and is expanded relative to the delivery state in a deployed state;
- wherein at least a portion of the biocompatible material of the graft extends continuously from a proximal end of the proximal portion to a distal end of the first and second limb portions while compressed in the delivery state.
3 more elements
A method of delivering an endoluminal prosthesis to a patient's body, the method comprising the steps of:
- delivering a bifurcated body having a proximal portion and a distal portion to a vessel of a patient's body, wherein the bifurcated body defines a lumen therethrough and a bifurcation point and the distal portion includes first and second limb portions extending distally from the bifurcation point, and wherein the proximal portion includes a first branch extending distally from the proximal portion and a second branch extending distally from the proximal portion, the first and second branches providing fluid communication from the lumen and being disposed proximally from the bifurcation point, wherein the first and second branches are disposed outside of the lumen;
- delivering, to a distal end of the first limb portion, a first limb extension having a first passageway through a sidewall thereof;
- adjusting the longitudinal and circumferential location of the first passageway to correspond to a location of a first artery ostium;
- and
- in response to adjusting the location of the first passageway, mating a proximal end of the first limb extension with a distal end of the first limb portion;
- wherein the bifurcation point from which the first and second limb portions extend is disposed between a patient's renal arteries and heart.
3 more elements
Dependencies are inferred from the claim text.