Medical stent
First Claim
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1. A stent system configured to support a wall of at least one junction of a bodily vessel, the junction comprising a main branch, a first branch and a second branch, comprising:
- a stent having a cylinder wall configured to be expanded from a first state to a second state, wherein at the first state, the cylinder wall comprises a first circumference along a length extending from a first end to a second end along a first axis, a side aperture located at a fixed position with respect to the first and the second ends having a perimeter, and a flexible extension positioned substantially within the circumference; and
wherein at the second state, the cylinder wall is configured to expand along its length configured to support the wall of the main branch and the first branch, to form a second circumference, wherein the second circumference is variable along the length of the cylinder and the flexible extension is configured to extend from a predefined portion of the side aperture'"'"'s perimeter that, upon expansion of the stent, is configured to flex outward from the cylinder wall to form a hood-like protrusion that arches over the perimeter; and
a first marker that upon expansion of the stent, is positioned in-line with and directly extending from a location where the distance of the aperture along the latitudinal direction is the greatest.
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Abstract
In an embodiment, a stent is provided for use in blood vessels with blockage near or in a bifurcation. The stent includes a side aperture. The stent is inserted into one of the daughter branches of the bifurcation and positioned with the use of markers. The stent is then expanded so as to support the wall of the blood vessel while allowing the blood to continue to flow to both daughter branches.
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Citations
19 Claims
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1. A stent system configured to support a wall of at least one junction of a bodily vessel, the junction comprising a main branch, a first branch and a second branch, comprising:
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a stent having a cylinder wall configured to be expanded from a first state to a second state, wherein at the first state, the cylinder wall comprises a first circumference along a length extending from a first end to a second end along a first axis, a side aperture located at a fixed position with respect to the first and the second ends having a perimeter, and a flexible extension positioned substantially within the circumference; and wherein at the second state, the cylinder wall is configured to expand along its length configured to support the wall of the main branch and the first branch, to form a second circumference, wherein the second circumference is variable along the length of the cylinder and the flexible extension is configured to extend from a predefined portion of the side aperture'"'"'s perimeter that, upon expansion of the stent, is configured to flex outward from the cylinder wall to form a hood-like protrusion that arches over the perimeter; and a first marker that upon expansion of the stent, is positioned in-line with and directly extending from a location where the distance of the aperture along the latitudinal direction is the greatest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stent system configured to support a wall of at least one junction of a bodily vessel, the junction comprising a main branch, a first branch and a second branch, comprising:
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a first stent having a cylinder wall configured to be expanded from a first state to a second state, wherein at the first state, the cylinder wall comprises a first circumference along a length extending from a first end to a second end along a first axis, a first side aperture located at a fixed position with respect to the first and the second ends having a first perimeter, and a flexible extension positioned substantially within the circumference; a second stent having a cylinder wall configured to be expanded from a first state to a second state;
wherein at the second state, the cylinder wall of the first stent is configured to expand along its length configured to support the wall of the main branch and the first branch, to form a second circumference, wherein the second circumference and the flexible extension is configured to extend from a predefined portion of the side aperture'"'"'s perimeter that, upon expansion of the stent, is configured to flex outward from the cylinder wall to form a hood-like protrusion that arches over the perimeter; anda first marker that upon expansion of the first stent, is positioned in-line with and directly extending from a location where the distance of the aperture along the latitudinal direction is the greatest. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification