Coated superelastic stent
First Claim
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1. A superelastic collagen coated stent for use in interventional therapy and vascular surgery, comprising in combination:
- a collagen tube; and
a multi-stranded micro-cable disposed within said collagen tube, said multi-stranded micro-cable being formed from a plurality of flexible strands of a resilient shape memory material, said micro-cable including at least one radiopaque strand to provide a radiopaque marker.
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Abstract
The coated superelastic stent is formed from a tube of collagen having an inner structure of a micro-cable made of strands of a material exhibiting superelasticity or shape memory properties, such as nickel-titanium, and includes a strand of radiopaque material, such as platinum or gold, in order to provide a radiopaque marker during interventional therapeutic treatment or vascular surgery. The collagen tube can be loaded with a therapeutic agent for treatment of the desired site in the vasculature.
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35 Claims
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1. A superelastic collagen coated stent for use in interventional therapy and vascular surgery, comprising in combination:
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a collagen tube; and
a multi-stranded micro-cable disposed within said collagen tube, said multi-stranded micro-cable being formed from a plurality of flexible strands of a resilient shape memory material, said micro-cable including at least one radiopaque strand to provide a radiopaque marker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A superelastic collagen coated stent for use in interventional therapy and vascular surgery, comprising in combination:
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a multi-stranded micro-cable, said multi-stranded micro-cable being formed from a plurality of flexible strands of a resilient material, said micro-cable including at least one radiopaque strand to provide a radiopaque marker;
a sheath to constrain said strands of said micro-cable about a longitudinal axis; and
said multi-stranded micro-cable and sheath being disposed within a collagen tube. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification