BARBED ANCHOR
First Claim
1. An endoluminal prosthesis comprising:
- a support structure comprising a curvilinear portion having a first straight section, a second straight section, and an apex between the first and second straight sections; and
an anchor comprising a tubular body;
where the tubular body has a first segment configured to fit about the first straight section, a second segment configured to fit about the second straight section, and a third curved segment to fit about and conform to a curvature of the apex;
where the first segment of the tubular body comprises a first continuous circumferential ring segment, and the second segment of the tubular body comprises a second continuous circumferential ring segment;
where at least one of the first segment or second segment comprises an integral barb extending therefrom.
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Accused Products
Abstract
An endoluminal prosthesis includes a support structure including a curvilinear portion having a first strut and a second strut that meet at an apex. Disposed on the support structure is an anchor with an anchor body and one or more barbs extending outwardly from the anchor body. The anchor body can fit at least partially about, and can conform to the first strut, second strut, and the apex. A curved portion of the anchor and the curvilinear portion of the support structure can be co-formed, resulting in a secure interference fit so that welding, soldering, or other joining mechanisms can be avoided. Cutouts can be formed along the curved portion of the anchor to relieve stress or strain during the co-forming process.
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Citations
20 Claims
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1. An endoluminal prosthesis comprising:
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a support structure comprising a curvilinear portion having a first straight section, a second straight section, and an apex between the first and second straight sections; and an anchor comprising a tubular body; where the tubular body has a first segment configured to fit about the first straight section, a second segment configured to fit about the second straight section, and a third curved segment to fit about and conform to a curvature of the apex; where the first segment of the tubular body comprises a first continuous circumferential ring segment, and the second segment of the tubular body comprises a second continuous circumferential ring segment; where at least one of the first segment or second segment comprises an integral barb extending therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An endoluminal prosthesis comprising:
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a stent comprising a curvilinear portion, the curvilinear portion having a first strut and a second strut meeting at an apex; and a tubular anchor comprising a first segment configured to fit over the first strut, a second segment configured to fit over the second strut, and a third segment between the first and second segments, wherein the third segment is conformed to fit about the apex of the curvilinear portion of the stent; wherein the tubular anchor further comprises one or more barbs extending from the tubular anchor, and one or more relief cutout portions formed along a curvature of the third segment. - View Dependent Claims (13, 14)
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15. A method of attaching an anchor to an endoluminal support structure, the method comprising the steps of:
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providing a tubular anchor in a first configuration with one or more barbs; providing a strut member in a first configuration; inserting the strut member into a lumen of the anchor, and positioning the anchor at a bending site; and bending the strut member and the anchor together at the bending site into a second configuration, where in the second configuration the strut member has a curvilinear portion including a first straight section, a second straight section, and an apex between the first and second straight sections, and the anchor has a first segment fitted about the first straight section, a second segment fitted about the second straight section, and a third curved segment fitted about and conformed to the apex; where the third curved segment comprises one or more relief cutouts formed therein. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification