Medical device retaining sheath and medical device delivery system employing same
First Claim
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1. An endoluminal apparatus comprising:
- a stent expandable from an unexpanded configuration to an expanded configuration; and
a sheath disposed around the stent, the sheath having a tubular structure comprising a first material at least partially embedded within a second material, the first material having a yield strength different from a yield strength of the second material such that when the stent expands from the unexpanded configuration to the expanded configuration, at least one of said first and second materials is plastically deformed.
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Abstract
An endoluminal prosthetic delivery system provides a delivery sheath possessing a yield strength capable of allowing implantation of the prosthesis with increased efficiency. An endoluminal prosthesis is inserted in a body in a radially compressed condition, and expanded at an implantation site, whereby a delivery sheath or the prosthesis itself possesses a yield strength sufficient to allow radial expansion of the prosthesis. A method of implanting an endoluminal prosthesis is also herein provided.
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Citations
41 Claims
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1. An endoluminal apparatus comprising:
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a stent expandable from an unexpanded configuration to an expanded configuration; and a sheath disposed around the stent, the sheath having a tubular structure comprising a first material at least partially embedded within a second material, the first material having a yield strength different from a yield strength of the second material such that when the stent expands from the unexpanded configuration to the expanded configuration, at least one of said first and second materials is plastically deformed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A stent delivery system comprising:
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a catheter including a balloon, the balloon comprising a pair of cones and a body portion therebetween, the body portion defining a medical device mounting region; an expandable stent disposed about only the medical device mounting region of the catheter, the stent being expandable from an unexpanded configuration to an expanded configuration; and a sheath comprising a first material at least partially embedded within a second material, the first material having a yield strength different from a yield strength of the second material, the sheath being disposed about the stent such that when the stent expands from the unexpanded configuration to the expanded configuration, at least one of said first and second materials is plastically deformed. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification