Overlapping stent
First Claim
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1. A medical device comprising:
- a first stent and a second stent, each stent comprising a tubular framework of interconnected struts, at least a portion of the second stent oriented within the first stent in both unexpanded and expanded states of the medical device, the first stent and the second stent coaxially aligned such that a central axis of the first stent and a central axis of the second stent are collinear;
the medical device further comprising an outwardly deployable side branch structure comprising a plurality of petals.
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Abstract
A medical device may comprise a body portion and an outwardly deployable side branch structure, and may be formed from a first stent and a second stent. In some embodiments, the first stent and second stent may be connected by at least one connection. At least a portion of the second stent may be oriented within the first stent and may be coaxially aligned with the first stent. Either stent may include the side branch structure, and the stent not having side branch structure may include a side branch opening. The first and second stents may overlap at various locations to provide additional vessel support.
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Citations
20 Claims
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1. A medical device comprising:
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a first stent and a second stent, each stent comprising a tubular framework of interconnected struts, at least a portion of the second stent oriented within the first stent in both unexpanded and expanded states of the medical device, the first stent and the second stent coaxially aligned such that a central axis of the first stent and a central axis of the second stent are collinear; the medical device further comprising an outwardly deployable side branch structure comprising a plurality of petals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device comprising:
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a first stent comprising a plurality of interconnected struts, the struts defining a plurality of cells, the stent further comprising a side branch opening, the side branch opening comprising a cell having a different shape than other cells of the stent; a second stent comprising a plurality of interconnected struts, the second stent defining a first end region, a central region and a second end region, said first end region and said second end region each comprising at least one serpentine band, the struts defining a plurality of cells, the central region further comprising a side branch structure having at least one outwardly deployable petal; wherein at least the central region of the second stent is disposed concentrically within the first stent, and in an expanded state, only said at least one outwardly deployable petal extends outwardly above an outer surface of said first stent in a stent radial direction. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of stenting a vessel comprising:
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providing a delivery catheter having an expandable medical device oriented about a distal end, the medical device comprising; a first stent and a second stent, at least a portion of the second stent oriented within the first stent, the second stent coaxially aligned with the first stent such that a central axis of the first stent and a central axis of the second stent are collinear, the medical device further comprising an outwardly deployable side branch structure comprising a plurality of petals; delivering the medical device to a deployment location in a bodily vessel; and expanding the medical device by expanding the first stent and the second stent simultaneously. - View Dependent Claims (20)
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Specification