Helical hybrid stent
First Claim
1. A stent comprising a helical main stent component and a polymer material, wherein said main stent component comprises:
- a) a first side band having a first end and a second end, and a second side band having a first end and a second end, wherein the first and second side bands each have an undulating pattern and are connected to each other by cross-struts, wherein the first end of the first side band tapers toward the second side band at a first point of connection, and the first end of the second side band tapers toward the first side band at a second point of connection;
wherein the second end of the first side band extends from the second point of connection, and the second end of the second end band extends from the first point of connection; and
b) a first hook extending from the first side band and connected to the second end of the second side band; and
a second hook extending from the second side band and connected to the second end of the first side band.
1 Assignment
0 Petitions
Accused Products
Abstract
An expandable helical stent with a securement is provided. The stent is formed from flat or tubular metal in a helical coiled structure which has an undulating pattern. The main stent component may be formed of a single helically coiled component. Alternatively, a plurality of helically coiled ribbons may be used to form a stent heterogeneous in design, material, or other characteristi. The helical tubular structure may be secured with a securement, such as a weld, interlock or a polymer, to maintain the helical coils in a tubular configuration. The helical coils of the main stent component may be spaced apart or nestled to each other. The nestling of the undulation of adjacent helical coils contributes to maintaining the tubular shape of the helically coiled stent. In addition, the nestling of helical coils may prevent the polymer layer from sagging at any point between cycles of the helical coils.
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Citations
20 Claims
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1. A stent comprising a helical main stent component and a polymer material, wherein said main stent component comprises:
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a) a first side band having a first end and a second end, and a second side band having a first end and a second end, wherein the first and second side bands each have an undulating pattern and are connected to each other by cross-struts, wherein the first end of the first side band tapers toward the second side band at a first point of connection, and the first end of the second side band tapers toward the first side band at a second point of connection;
wherein the second end of the first side band extends from the second point of connection, and the second end of the second end band extends from the first point of connection; andb) a first hook extending from the first side band and connected to the second end of the second side band; and
a second hook extending from the second side band and connected to the second end of the first side band.
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2. A stent comprising:
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a first side band having a first end and a second end; a second side band having a first end and a second end, the second side band being connected to the first side band to form cells therebetween; a first end band extending from the first end of the first side band; a second end band extending from the second end of the second side band; a first hook extending from the second side band in a first direction; and a second hook extending from the first side band in a second direction opposite the first direction. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A stent comprising:
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a first side band having an undulating pattern and extending between a first end and a second end; a second side band having an undulating pattern and extending between a first end and a second end, the second side band being connected to the first side band to form cells therebetween; a first end band having an undulating pattern and extending from the first end of the first side band; a second end band having an undulating pattern and extending from the second end of the second side band; a first hook comprising a first end and a second end, said first end of said first hook coupled to the second side band, said first hook further comprising first and second members, the first member extending from the first end of the first hook and the second member extending at an angle from the first member, wherein the angle is an acute angle; and a second hook comprising a first end and a second end, said first end of said second hook coupled to the first side band, said second hook comprising further third and fourth members, the third member extending from the first end of the second hook and the fourth member extending at an angle from the third member, wherein the angle is an acute angle. - View Dependent Claims (20)
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Specification