Stent for improved transluminal deployment
First Claim
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1. In a stent having first and second ends and a wall surface disposed between the first and second ends and having a first diameter that permits intraluminal delivery and a second expanded diameter wherein the stent supports a lumen of a body passageway, the improvement comprising:
- a radiused or bulbous region disposed on the first end of the stent in a plane transverse to the stent;
the radiused or bulbous portion increasing the profile of the stent in the region of the first end, to reduce the risk of injury to the lumen of the body passageway during introduction of the stent.
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Abstract
A stent and method for manufacturing a stent comprising an expandable, generally tubular body portion in which one or both ends of the stent are provided with a generally rounded, smooth radiused portion that forms a bulbous protrusion out of the plane of the circumference of the stent. The design of the stent increases the profile of the end of the stent and decreases the risk of injury or vessel dissection during stent deployment.
68 Citations
23 Claims
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1. In a stent having first and second ends and a wall surface disposed between the first and second ends and having a first diameter that permits intraluminal delivery and a second expanded diameter wherein the stent supports a lumen of a body passageway, the improvement comprising:
a radiused or bulbous region disposed on the first end of the stent in a plane transverse to the stent; the radiused or bulbous portion increasing the profile of the stent in the region of the first end, to reduce the risk of injury to the lumen of the body passageway during introduction of the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a stent for implantation within a lumen of a vessel within the human body comprising a plurality of N substantially straight segments of wire-like material, each segment having first and second ends, the first end of the first segment being connected to the first end of the second segment at a first apex, the second end of the second segment being connected to the second end of the third segment at a second apex, and so on until the second end of the Nth segment is connected to the second end of the first segment at the Nth apex, the improvement comprising:
a radiused or bulbous portion disposed on each odd-numbered apex and increasing the profile of the apex to reduce the risk of injury to the lumen of the body passageway during introduction of the stent. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of manufacturing a stent comprising the steps of:
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providing a tubular member having two ends and a plurality of apices at each end; increasing the profile of a plurality of the apices so as to reduce the risk of injury to the lumen of the body passageway during introduction of the stent. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification