Bifurcated graft deployment systems and methods
First Claim
1. A method of deploying a bifurcated prosthesis in a patient'"'"'s vasculature, comprising:
- supporting the bifurcated prosthesis with a deployment catheter;
advancing at least a distal end portion of the deployment catheter and the prosthesis through a first access site in a first vessel in the patient'"'"'s vasculature to a bifurcation region of the patient'"'"'s vasculature;
positioning a main body portion of the bifurcated prosthesis in a main vessel;
positioning a first branch portion of the bifurcated prosthesis in a first branch vessel, a diameter of the first branch portion being smaller than a diameter of the main body portion;
positioning a second branch portion of the bifurcated prosthesis in a second branch vessel, wherein the first and second branch vessels branch off the main vessel, a diameter of the second branch portion being smaller than the diameter of the main body portion;
releasing a main body portion of the bifurcated prosthesis from a main body restraint so that the main body portion of the bifurcated prosthesis expands in the main vessel; and
withdrawing the main body restraint from the patient'"'"'s vasculature through a second access site in a second vessel, wherein the second access site is at a different location than the first access site.
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Accused Products
Abstract
A method for deploying an endoluminal vascular prosthesis using a deployment catheter that has at least a main graft portion and a first branch graft portion. The deployment catheter preferably comprises an elongate, flexible catheter body having a proximal end and a distal end, and an outer sheath and an inner core that is axially moveable with respect to the outer sheath. The catheter preferably comprises a main graft restraint that has a main graft release mechanism comprising a main graft sheath and a suture threaded through a plurality of the openings in the main graft sheath. The catheter further comprises at least one branch graft restraint comprising at least one branch graft release mechanism.
584 Citations
22 Claims
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1. A method of deploying a bifurcated prosthesis in a patient'"'"'s vasculature, comprising:
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supporting the bifurcated prosthesis with a deployment catheter; advancing at least a distal end portion of the deployment catheter and the prosthesis through a first access site in a first vessel in the patient'"'"'s vasculature to a bifurcation region of the patient'"'"'s vasculature; positioning a main body portion of the bifurcated prosthesis in a main vessel; positioning a first branch portion of the bifurcated prosthesis in a first branch vessel, a diameter of the first branch portion being smaller than a diameter of the main body portion; positioning a second branch portion of the bifurcated prosthesis in a second branch vessel, wherein the first and second branch vessels branch off the main vessel, a diameter of the second branch portion being smaller than the diameter of the main body portion; releasing a main body portion of the bifurcated prosthesis from a main body restraint so that the main body portion of the bifurcated prosthesis expands in the main vessel; and withdrawing the main body restraint from the patient'"'"'s vasculature through a second access site in a second vessel, wherein the second access site is at a different location than the first access site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of deploying a prosthesis in a patient'"'"'s vasculature, comprising:
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supporting the prosthesis with a deployment catheter; advancing at least a distal end portion of the deployment catheter and the prosthesis through a first access site in a first vessel in the patient'"'"'s vasculature to a target vessel of the patient'"'"'s vasculature, a diameter of the first vessel being smaller than a diameter of the target vessel; releasing the prosthesis from a restraint so that at least a portion of the prosthesis self-expands in the target vessel; and withdrawing the restraint from the patient'"'"'s vasculature through a second access site in a second vessel, wherein the second access site is at a different location than the first access site, a diameter of the second vessel being smaller than the diameter of the target vessel. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification