Multiple layer stent
First Claim
1. A stent comprising:
- a first layer of material defining a generally hollow, tubular construction;
a second layer of material comprising a plurality of thread elements helically wound around a longitudinal axis to provide a self-expanding braided mesh construction and defining a generally hollow, tubular construction disposed inside of the first layer of material; and
a layer of polymeric material disposed between the first layer of material and the second layer of material.
7 Assignments
0 Petitions
Accused Products
Abstract
A radially self-expanding stent having multiple layers includes a medial region and proximal and distal cuffs having diameters greater than the medial region diameter when the stent is in the relaxed state. A silicone coating circumscribes at least the medial region of the stent. A deployment device for the stent includes an inner tube surrounded by the stent along with an outer tube that radially compresses the stent. A low durometer sleeve, fixed to the inner tube and in surface engagement with the compressed stent, tends to fix the axial position of the stent relative to the inner tube whenever the outer tube is moved axially relative to the inner tube. Consequently, precision in stent placement and the ability to recapture a partially deployed stent are enhanced.
905 Citations
22 Claims
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1. A stent comprising:
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a first layer of material defining a generally hollow, tubular construction; a second layer of material comprising a plurality of thread elements helically wound around a longitudinal axis to provide a self-expanding braided mesh construction and defining a generally hollow, tubular construction disposed inside of the first layer of material; and a layer of polymeric material disposed between the first layer of material and the second layer of material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multiple layer stent comprising:
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an outer generally hollow tubular stent formed from at least one thread element helically wound around a longitudinal axis of the multiple layer stent to provide a braided mesh construction; an inner generally hollow tubular self-expanding stent coaxially disposed within the outer stent and formed from at least one thread element helically wound around a longitudinal axis of the multiple layer stent to provide a braided mesh construction; and a layer of polymeric material covering at least a portion of the multiple layer stent. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A stent comprising:
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a first layer of material having an axial length and defining a generally hollow, tubular construction; a second layer of material having an axial length greater than the axial length of the first layer and defining a generally hollow, tubular construction disposed inside of the first layer of material; and a layer of polymeric material disposed between the first layer of material and the second layer of material. - View Dependent Claims (16, 17, 18, 19)
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20. A multiple layer stent comprising:
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an outer generally hollow tubular stent having an axial length formed from at least one thread element helically wound around a longitudinal axis of the multiple layer stent to provide a braided mesh construction; an inner generally hollow tubular stent greater than the axial length of the outer stent and coaxially disposed within the outer stent and formed from at least one thread element helically wound around a longitudinal axis of the multiple layer stent to provide a braided mesh construction; and a layer of polymeric material covering at least a portion of the multiple layer stent. - View Dependent Claims (21, 22)
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Specification