Braided modular stent with hourglass-shaped interfaces

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, wherein the reduced diameter section of the hourglass-shaped interface comprises filaments having a first set of metallurgical properties different than a second set of metallurgical properties in the nominal diameter sections.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater than radial strength than the nominal diameter sections, wherein the reduced diameter section of the hourglass-shaped interface comprises a plurality of first regions of braided filaments in which the filaments have a first cross-sectional area that is, greater than a second cross-sectional area in a plurality of second regions of braided filaments in the nominal diameter sections.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, wherein at least one of the first component or the second component has an end section having a non-braided wound architecture.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, further comprising one or more circumferential elevations, each elevation comprising a first section of the stent having a first diameter that is greater than a second diameter of a second section of the stent distally adjacent the elevation and a third diameter of a third section of the stent proximally adjacent the elevation.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, wherein at least one of the first component or the second component further comprises a sealing region for providing an endoleak-resistant seal between the stent and a body lumen into which the stent is adapted to be installed and the sealing region comprises a greater radial strength than portions of the stent adjacent to the sealing region.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, wherein the sloped sections have a radial strength greater than the nominal diameter sections.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, at least one of the first component or the second component comprising a sealing region for providing an endoleak-resistant seal between the stent and a body lumen into which the stent is adapted to be installed, the sealing region having a spherical geometry.

A braided modular stent comprising a first component and a second component, each component comprising an hourglass-shaped interface, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections, wherein the sloped sections have a radial strength less than or equal to the nominal diameter sections.

A braided modular stent comprising:

• a body having two integral leg stumps depending therefrom, an end section having a hexagonal cell wound architecture opposite the leg stumps, and a sealing ring adjacent the end section for providing an endoleak-resistant seal between the stent and a body lumen into which the stent is adapted to be installed, the sealing region having a greater radial strength than a portion of the stent adjacent to the sealing region;
• and
• two legs, wherein each of said stumps and each of said legs has an hourglass-shaped interface for interlocking the legs to the leg stumps, each hourglass shaped interface comprising a reduced diameter section positioned between two sloped sections, each sloped section extending between the reduced diameter section and one of a plurality of nominal diameter sections, the reduced diameter section having a greater radial strength than the nominal diameter sections.