Coronary stent
First Claim
Patent Images
1. A stent for supporting a wall of a blood vessel comprising:
- a cylinder wall, the cylinder wall having a circumference;
a side aperture in the cylinder wall, the side aperture extending along a longitudinal direction and along a latitudinal direction; and
a marker provided on the cylinder wall, the marker aligned with the side aperture at a location where a distance of the aperture along the latitudinal direction is the greatest, wherein the marker is in-line with and directly extends from the location where the distance of the aperture along the latitudinal direction is the greatest, wherein the marker extends a portion of a distance around the circumference of the cylinder wall in a direction extending away from the side aperture and substantially perpendicular to a longitudinal axis of the stent so as to provide a rotation orientation of the stent in a two-dimensional image.
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Accused Products
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.
89 Citations
28 Claims
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1. A stent for supporting a wall of a blood vessel comprising:
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a cylinder wall, the cylinder wall having a circumference; a side aperture in the cylinder wall, the side aperture extending along a longitudinal direction and along a latitudinal direction; and a marker provided on the cylinder wall, the marker aligned with the side aperture at a location where a distance of the aperture along the latitudinal direction is the greatest, wherein the marker is in-line with and directly extends from the location where the distance of the aperture along the latitudinal direction is the greatest, wherein the marker extends a portion of a distance around the circumference of the cylinder wall in a direction extending away from the side aperture and substantially perpendicular to a longitudinal axis of the stent so as to provide a rotation orientation of the stent in a two-dimensional image. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for supporting a wall in a junction of a blood vessel, the junction comprising a main branch, a first branch and a second branch, the method comprising:
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(a) inserting a stent with a side aperture into the junction, the stent extending into the main branch and the first branch, the stent including a marker aligned with a location where a distance of the aperture along a latitudinal direction is the greatest, wherein the marker is in-line with and directly extends from the location where the distance of the aperture along the latitudinal direction is the greatest, wherein the side aperture comprises a distance in a longitudinal direction that is greater than a distance of the aperture in a latitudinal direction; (b) aligning the marker with the second branch of the junction so that the marker is positioned approximate a center of the second branch; and (c) expanding the stent so as to support the wall of the blood vessel. - View Dependent Claims (9, 10, 11, 12)
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13. A method of supporting a wall of a left coronary artery near a junction, the junction comprising a main branch joining a first branch and a second branch, the main branch feeding the first and second branch, the method comprising:
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(a) positioning a stent with a side aperture in the junction of the left coronary artery, the side aperture extending along a longitudinal direction and along a latitudinal direction and the stent including a marker aligned with the side aperture at a location where a distance of the aperture along the latitudinal direction is the greatest, wherein the marker is in-line with and directly extends from the location where the distance of the aperture along the latitudinal direction is the greatest, the marker extending along a circumference of the stent a distance substantially perpendicular to a longitudinal axis of the stent so as to provide a rotational orientation of the stent in a two dimensional image; and (b) expanding the stent so as to support the wall of the main branch and the first branch, whereby the side aperture allows the main branch to continue to feed both the first and the second branch. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for use in supporting a blood vessel wall, comprising:
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an angioplasty balloon; an expandable stent mounted on the balloon, the stent including a longitudinal axis, a circumference, a distal end and a proximal end; a side aperture in the stent extending along a longitudinal direction and along a latitudinal direction; and a marker aligned with the side aperture at a location where a distance of the aperture along the latitudinal direction is the greatest, wherein the marker is in-line with and directly extends from the location where the distance of the aperture along the latitudinal direction is the greatest, and the marker extending along a portion of the circumference of the stent away from the side aperture and substantially perpendicular to the longitudinal axis of the stent so as to provide a rotation orientation of the stent in a two-dimensional image. - View Dependent Claims (23, 26, 27)
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24. The system of 22, wherein the stent is a mesh type design and the stent is coated with an anti-neo intimal proliferation agent.
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25. The system of 22, wherein the balloon is non-compliant.
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28. A stent for supporting a wall of a blood vessel comprising:
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a cylinder wall, the cylinder wall having a circumference; a side aperture in the cylinder wall, the side aperture extending along a longitudinal direction and along a latitudinal direction and wherein the side aperture comprises a distance in a longitudinal direction that is greater than a distance of the aperture in a latitudinal direction; and a marker provided on the cylinder wall, the marker aligned with a location of the largest distance of the side aperture extending in the latitudinal direction, wherein the marker is in-line with and directly extends from the location where the distance of the aperture alone the latitudinal direction is the greatest, and the marker extending along the circumference of the cylinder wall at least 180 degrees so as to provide a “
C”
shaped image when the marker is viewed in a two dimensional image.
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Specification