Vascular implants and methods of fabricating the same
First Claim
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1. An implantable stent for use in a vessel or tubular structure comprising:
- a unitary structure having a main lumen formed of struts and at least one side branch lumen formed of struts, wherein the main lumen has a main lumen first end and a main lumen second end, wherein the at least one side branch lumen has a side branch lumen first end and a side branch lumen second end, wherein the struts forming the side branch lumen first end are connected to the struts forming the main lumen between the main lumen first end and the main lumen second end, wherein the main lumen and the side branch lumen have a pattern of interconnected cells, wherein the size of the interconnected cells of the side branch lumen varies along a distal length of the side branch lumen, wherein an angle between the at least one side branch lumen and the main lumen is adjustable between a first angle and a second angle, wherein when the angle is the first angle, the side branch lumen second end is closer to the main lumen first end than to the main lumen second end, and wherein when the angle is the second angle, the side branch lumen second end is closer to the main lumen second end than to the main lumen first end.
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Abstract
The present invention is directed to vascular implants and methods for fabricating the same. The implantable devices include but are not limited to stents, grafts and stent grafts. In many embodiments, the devices include one or more side branch lumens interconnected with the main lumen.
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Citations
20 Claims
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1. An implantable stent for use in a vessel or tubular structure comprising:
a unitary structure having a main lumen formed of struts and at least one side branch lumen formed of struts, wherein the main lumen has a main lumen first end and a main lumen second end, wherein the at least one side branch lumen has a side branch lumen first end and a side branch lumen second end, wherein the struts forming the side branch lumen first end are connected to the struts forming the main lumen between the main lumen first end and the main lumen second end, wherein the main lumen and the side branch lumen have a pattern of interconnected cells, wherein the size of the interconnected cells of the side branch lumen varies along a distal length of the side branch lumen, wherein an angle between the at least one side branch lumen and the main lumen is adjustable between a first angle and a second angle, wherein when the angle is the first angle, the side branch lumen second end is closer to the main lumen first end than to the main lumen second end, and wherein when the angle is the second angle, the side branch lumen second end is closer to the main lumen second end than to the main lumen first end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable stent for use in a vessel or tubular structure comprising:
interconnected cells forming a main lumen and at least one side branch lumen, wherein the main lumen has a main lumen first end and a main lumen second end, wherein the at least one side branch lumen has a side branch lumen first end and a side branch lumen second end, wherein the side branch lumen first end is connected to the main lumen, wherein when the at least one side branch lumen is in a fully deployed configuration, the at least one side branch lumen is between the main lumen first end and the main lumen second end, wherein an angle between the at least one side branch lumen and the main lumen is adjustable between a first angle and a second angle, wherein when the angle is the first angle and the at least one side branch lumen is in the fully deployed configuration, the side branch lumen second end is closer to the main lumen first end than to the main lumen second end, wherein the stent has one or more sections having cells having a first size and one or more other sections having cells having a second size different from the first size, and wherein the size of the cells of the main branch lumen progressively decreases from a main branch lumen medial portion to at least one of the main branch lumen first end and the main branch lumen second end. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An implantable stent for use in a vessel or tubular structure comprising:
interconnected struts forming a main lumen and at least one side branch lumen, wherein the main lumen has a main lumen first end and a main lumen second end, wherein the at least one side branch lumen has a side branch lumen first end and a side branch lumen second end, wherein the side branch lumen first end is attached to the main lumen, wherein when the at least one side branch lumen is in a fully deployed configuration, the side branch lumen second end is between the main lumen first end and the main lumen second end, wherein an angle between the at least one side branch lumen and the main lumen is adjustable such that the at least one side branch lumen is adjustable between a first configuration and a second configuration, wherein when the at least one side branch lumen is in the first configuration and the at least one side branch lumen is in the fully deployed configuration, the side branch lumen second end is closer to the main lumen first end than to the main lumen second end, wherein the main lumen has cells having a first size, wherein at least one side branch lumen has cells having a second size different from the first size, wherein the at least one side branch lumen has a first distal section of cells and a second distal section of cells, wherein the size of the cells of the first distal section is larger than the size of the cells of the second distal section, and wherein the second distal section is closer to the side branch lumen second end than the first distal section. - View Dependent Claims (16, 17, 18, 19, 20)
Specification