Stent graft delivery systems and associated methods
First Claim
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1. A method of delivering a stent graft, the method comprising:
- delivering to an aortic aneurysm a stent graft with a proximal sheath covering a proximal portion of the stent graft and a distal sheath covering a distal portion of the stent graft;
positioning the distal portion of the stent graft above the aortic aneurysm;
retracting the proximal sheath while simultaneously advancing a proximal portion of the stent graft to deploy the proximal portion of the stent graft, wherein the proximal sheath is retracted and the proximal portion of the stent graft is advanced at rates corresponding to a ratio of a deployed configuration length of the stent graft to a delivery configuration length of the stent graft;
advancing the distal sheath relative to the stent graft to deploy the distal portion of the stent graft via a central wire; and
retracting the distal sheath through an inner lumen formed by the stent graft.
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Abstract
Stent graft delivery systems are disclosed herein. In several embodiments, a stent graft delivery system can include a stent graft having a proximal portion and a distal portion, a proximal sheath and a distal sheath. The proximal sheath can be configured to cover the proximal portion of the stent graft, and the distal sheath can be configured to cover the distal portion of the stent graft. The proximal sheath and the distal sheath can be independently removable from respective ends of the stent graft such that the proximal and distal portions of the stent graft are independently deployable.
461 Citations
16 Claims
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1. A method of delivering a stent graft, the method comprising:
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delivering to an aortic aneurysm a stent graft with a proximal sheath covering a proximal portion of the stent graft and a distal sheath covering a distal portion of the stent graft; positioning the distal portion of the stent graft above the aortic aneurysm; retracting the proximal sheath while simultaneously advancing a proximal portion of the stent graft to deploy the proximal portion of the stent graft, wherein the proximal sheath is retracted and the proximal portion of the stent graft is advanced at rates corresponding to a ratio of a deployed configuration length of the stent graft to a delivery configuration length of the stent graft; advancing the distal sheath relative to the stent graft to deploy the distal portion of the stent graft via a central wire; and retracting the distal sheath through an inner lumen formed by the stent graft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of delivering a stent graft, the method comprising:
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delivering, to a deployment location, a stent graft with a sheath covering at least a distal portion of the stent graft; positioning the stent graft at the deployment location; retracting the stent graft with one of a proximal or the distal end portions of the stent graft held in place while simultaneously advancing the sheath relative to the stent graft to deploy at least a proximal portion of the stent graft via a central wire, wherein the distal portion of the stent graft is retracted and the sheath is advanced at rates corresponding to a ratio of a deployed configuration length of the stent graft to a delivery configuration length of the stent graft; and retracting the sheath through an inner lumen formed by the stent graft. - View Dependent Claims (14, 15, 16)
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Specification