Staged deployment endograft
First Claim
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1. A method of deploying an endograft comprising the steps of:
- delivering an endograft to a diseased portion of a body lumen, said endograft being radially constrained by a sheath and select longitudinal portions of said endograft being radially constrained by releasable restraining members operatively associated with said select longitudinal portions of said endograft;
withdrawing said sheath to partially deploy said endograft, wherein said releasable restraining members constrain said selected longitudinal portions of said endograft to provide a flow path external said endograft proximate said restraining members while permitting portions of said endograft intermediate said selected longitudinal portions to expand;
releasing said restraining members to further deploy said select longitudinal portions to fully expand said endograft.
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Abstract
An apparatus is provided for deploying an endograft that maintains a fluid channel throughout deployment. A method for deploying an endograft maintaining a fluid channel through the deployment is also provided.
41 Citations
13 Claims
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1. A method of deploying an endograft comprising the steps of:
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delivering an endograft to a diseased portion of a body lumen, said endograft being radially constrained by a sheath and select longitudinal portions of said endograft being radially constrained by releasable restraining members operatively associated with said select longitudinal portions of said endograft; withdrawing said sheath to partially deploy said endograft, wherein said releasable restraining members constrain said selected longitudinal portions of said endograft to provide a flow path external said endograft proximate said restraining members while permitting portions of said endograft intermediate said selected longitudinal portions to expand; releasing said restraining members to further deploy said select longitudinal portions to fully expand said endograft. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An endograft delivery system comprising:
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a catheter configured to carry said endograft and to be endoluminally advanced through a body lumen; a nosecone attached to a proximal end of said catheter; a sheath configured to constrain said endograft in a radially compressed configuration during endoluminal advancement and to be axially withdrawn from said endograft to partially deploy said endograft; and at least two releasable restraining members extending over and radially constraining lengthwise portions of said endograft. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification