Expandable stent using sliding members
First Claim
1. An expandable stent for implantation within a body lumen comprising:
- a plurality of elongated stent components, wherein the stent components are arranged longitudinally and substantially parallel to each other and have a plurality of slots thereon; and
a plurality of circumferential members affixed to the stent components,wherein the circumferential members of one component are slidably engaged by the slots of an adjacent component forming a generally cylindrical body with open proximal and distal ends.
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Accused Products
Abstract
The present invention provides a lumen support device, or a stent, used to open or expand a body lumen. The stent incorporates elongated parallel stent components with circumferential members, fingers, which weave into paired slots of an adjacent stent component. This weave-like interlocking configuration enables the stent to expand radially without yielding or plastically deforming the material of which the stent is fabricated. The weave-like mechanism allows for uniform, smooth expansion without change in longitudinal dimensions of the complete assembly. Once assembled, the plurality of parallel elongated stent components form a cylindrical configuration. The invention provides a stent able to support body lumens and adapt to curves or irregularities in body lumens without losing its formation or its longitudinal dimensions. It is designed to permit flexing both radially and longitudinally to conform to the curved body of the applicable lumen. The device is delivered using a percutaneous transluminal catheter device which may incorporate an inflatable balloon, self-expanding material or both to expand the stent.
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Citations
10 Claims
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1. An expandable stent for implantation within a body lumen comprising:
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a plurality of elongated stent components, wherein the stent components are arranged longitudinally and substantially parallel to each other and have a plurality of slots thereon; and a plurality of circumferential members affixed to the stent components, wherein the circumferential members of one component are slidably engaged by the slots of an adjacent component forming a generally cylindrical body with open proximal and distal ends. - View Dependent Claims (2, 3, 4, 5)
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6. An expandable stent for implantation within a body lumen comprising:
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a plurality of elongated stent components, wherein the stent components are arranged longitudinally and substantially parallel to each other; and a plurality of circumferential members affixed to the stent components, the circumferential members having a straight linear configuration, wherein the circumferential members of at least two of the components are slidably engaged by an adjacent component forming a generally cylindrical body with open proximal and distal ends. - View Dependent Claims (7, 8, 9, 10)
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Specification