Vascular Stents, Methods of Use and Methods of Manufacture
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Abstract
Embodiments of the present invention are directed to medical implants/stents, systems, and methods of treatment using such stents. Some embodiments of the invention include a self-expanding stent having a tubular first wall structure of a first diameter, where each end portion of the first wall structure is formed into a second wall structure of a second diameter larger than the first diameter. A membrane covers at least the first wall structure and the stent includes an interlaced, helicoidally wound wire forming a mesh-like structure.
247 Citations
92 Claims
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1-70. -70. (canceled)
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71. A medical implant system comprising:
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a first self-expanding stent comprising a tubular first wall structure of a first diameter, wherein at least one end portion of the first wall structure is formed into a second diameter; and a second balloon expandable stent comprising a tubular structure, wherein the balloon expandable stent is deployed within a portion of the first wall structure of the first stent. - View Dependent Claims (72)
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73. A system for implanting a medical device comprising:
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a self-expanding stent capable upon expansion of forming a tubular first wall structure of a first diameter, wherein each end portion of the first wall structure form into a second wall structure of a second diameter larger than the first diameter; a delivery system having a sheath capable of loading the self-expanding stent; and a guide-wire upon which the delivery system is guided to an area of interest in a patient for implanting the stent, wherein upon the delivery system being advanced to the area of interest, the distal end of the stent is deployed from the sheath, the delivery system is pushed in the distal end direction such that distal end of the stent is turned backward toward the proximal end of the stent. - View Dependent Claims (74, 75, 76)
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77. A method for implanting a medical device comprising:
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providing a self-expanding stent capable upon expansion of forming a tubular first wall structure of a first diameter, wherein each end portion of the first wall structure form into a second wall structure of a second diameter larger than the first diameter; loading the self-expanding stent into a delivery system, the stent being enclosed by a sheath; inserting the delivery system over a guide-wire, a portion of the guide-wire lying adjacent an area of interest for implanting the stent; advancing the stent to the area of interest; deploying a distal end of the stent out from the sheath; pushing the delivery system in distal end direction such that distal end of the stent is turned backward toward the proximal end of the stent; deploying the tubular first wall structure of the stent; and deploying the proximal end of the stent. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84)
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85. A method for treating staged right ventricular outflow tract stenosis of a patient comprising:
deploying a first stent proximate a ventricular setpal defect of a patient, wherein; the first stent comprises a tubular first wall structure of a first diameter, the at least one end portion of the first wall structure being formed into a second diameter and a conical portion, at least the conical portion includes a membrane covering, and the defect is sealed by the membrane/conical portion. - View Dependent Claims (86, 87, 88, 89, 90, 91, 92)
Specification