Varying circumferential spanned connectors in a stent
First Claim
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1. A stent comprising:
- a plurality of serpentine circumferential bands, each serpentine circumferential band having a proximal end portion, a distal end portion, a plurality of proximal turns at said proximal end portion and a plurality of distal turns at said distal end portion; and
a plurality of connector columns, each connector column located between two adjacent serpentine circumferential bands, each connector column comprising a plurality of connector struts including a first type of connector strut and a second type of connector strut, each connector strut coupled at a first end to a serpentine circumferential band and coupled at a second end to another serpentine circumferential band, wherein the second type of connector strut spans a greater circumferential distance than the first type of connector strut, wherein the first end of at least one second type of connector strut is circumferentially offset from the second end;
wherein the number of proximal turns in a serpentine circumferential band is a multiple of 3, and wherein the number of connector struts in a connector column is a multiple of 2, and wherein the number of connector struts in a connector column is less than the number of proximal turns in an adjacent serpentine circumferential band.
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Abstract
A stent comprises a plurality of serpentine circumferential bands and a plurality of connector columns. Each connector column is located between two adjacent serpentine circumferential bands and comprises a plurality connector struts. Each connector strut is connected at one end to one serpentine circumferential band and at another end to another serpentine circumferential band. Each connector column may contain multiple types of connector struts having varying circumferential spans. Each serpentine circumferential band may have sections which vary in amplitude and/or wavelength.
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Citations
30 Claims
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1. A stent comprising:
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a plurality of serpentine circumferential bands, each serpentine circumferential band having a proximal end portion, a distal end portion, a plurality of proximal turns at said proximal end portion and a plurality of distal turns at said distal end portion; and a plurality of connector columns, each connector column located between two adjacent serpentine circumferential bands, each connector column comprising a plurality of connector struts including a first type of connector strut and a second type of connector strut, each connector strut coupled at a first end to a serpentine circumferential band and coupled at a second end to another serpentine circumferential band, wherein the second type of connector strut spans a greater circumferential distance than the first type of connector strut, wherein the first end of at least one second type of connector strut is circumferentially offset from the second end; wherein the number of proximal turns in a serpentine circumferential band is a multiple of 3, and wherein the number of connector struts in a connector column is a multiple of 2, and wherein the number of connector struts in a connector column is less than the number of proximal turns in an adjacent serpentine circumferential band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stent comprising:
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a plurality of serpentine circumferential bands, each serpentine circumferential band having a proximal end portion, a distal end portion, a plurality of proximal turns at said proximal end portion and a plurality of distal turns at said distal end portion; and a plurality of connector columns, each connector column located between two adjacent serpentine circumferential bands, each connector column comprising a plurality of connector struts including a first type of connector strut and a second type of connector strut, each connector strut coupled at a first end to a serpentine circumferential band and coupled at a second end to another serpentine circumferential band, wherein the first end of at least one second type of connector strut is circumferentially offset from the second end; wherein the number of proximal turns in a serpentine circumferential band is a multiple of 3, and wherein the number of connector struts in a connector column is a multiple of 2, and wherein the number of connector struts in a connector column is less than the number of proximal turns in an adjacent serpentine circumferential band; wherein the first type of connector strut provides the stein with greater axial strength than the second type of connector strut.
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15. A stent comprising:
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a plurality of serpentine circumferential bands, each serpentine circumferential band having a proximal end portion, a distal end portion, a plurality of proximal turns at said proximal end portion and a plurality of distal turns at said distal end portion; and a plurality of connector columns, each connector column located between two adjacent serpentine circumferential bands, each connector column comprising a plurality of connector struts including at least one first type of connector strut and at least one second type of connector strut, each connector strut coupled at a first end to a serpentine circumferential band and coupled at a second end to another serpentine circumferential band, wherein the first end of at least one second type of connector strut is circumferentially offset from the second end, wherein the second type of connector strut spans a greater circumferential distance than the first type of connector strut; wherein the number of proximal turns in a serpentine circumferential band is a multiple of 3, and wherein the number of connector struts in a connector column is a multiple of 2. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification