Double-walled stent system
First Claim
1. A stent system for use within a body lumen, the system comprising:
- an interior stent component having a proximal end, a distal end, and a generally tubular cylindrical body defining a central flow lumen there through; and
an exterior stent component including a plurality of longitudinally-extending connectors, wherein the proximal and distal ends of the interior stent component are attached to the exterior stent component such that the longitudinally-extending connectors are radially positioned around the tubular body of the interior stent component,wherein when the stent system is in an expanded configuration the longitudinally-extending connectors of the exterior stent component bow radially outward away from the tubular body of the interior stent component to contact a vessel wall of the body lumen while the interior stent component remains radially centered within the longitudinally-extending connectors, andwherein foreshortening of the interior stent component reduces a length of the interior stent component between an unexpanded configuration and the expanded configuration of the stent system whereby proximal ends and distal ends of the longitudinally-extending connectors move closer together to bow the longitudinally-extending connectors radially outward.
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Accused Products
Abstract
A double walled stent system particularly suited for treating abnormalities of the right ventricular outflow tract is disclosed having an exterior stent component and an interior stent component. The exterior stent component includes a plurality of longitudinally-extending connectors such as straight or sinusoidal bands. The interior stent component has a generally tubular cylindrical body and is centered within the exterior stent component. The stent system has a contracted delivery configuration and a radially expanded configuration for contacting the vessel wall. When deployed, the longitudinally-extending connectors of the exterior stent component come in contact with the vessel wall and fix the stent system to the treatment site. The interior stent component also radially expands but remains centered inside the exterior component and makes little to no contact with the vessel wall.
163 Citations
19 Claims
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1. A stent system for use within a body lumen, the system comprising:
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an interior stent component having a proximal end, a distal end, and a generally tubular cylindrical body defining a central flow lumen there through; and an exterior stent component including a plurality of longitudinally-extending connectors, wherein the proximal and distal ends of the interior stent component are attached to the exterior stent component such that the longitudinally-extending connectors are radially positioned around the tubular body of the interior stent component, wherein when the stent system is in an expanded configuration the longitudinally-extending connectors of the exterior stent component bow radially outward away from the tubular body of the interior stent component to contact a vessel wall of the body lumen while the interior stent component remains radially centered within the longitudinally-extending connectors, and wherein foreshortening of the interior stent component reduces a length of the interior stent component between an unexpanded configuration and the expanded configuration of the stent system whereby proximal ends and distal ends of the longitudinally-extending connectors move closer together to bow the longitudinally-extending connectors radially outward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification