Stent including displacement capabilities
First Claim
1. A medical device, comprising:
- an expandable scaffold positionable within a body lumen, the body lumen having an inner surface, the scaffold including a first end region and a second end region opposite the first end region; and
a support member extending circumferentially around and attached to an outer surface of the expandable scaffold;
wherein the support member is configured to be positioned between the outer surface of the expandable scaffold and the inner surface of the body lumen;
wherein when the scaffold and support member are disposed within the body lumen and the scaffold is in an expanded state, at least a portion of the support member is configured to move axially relative to the inner surface of the body lumen, and wherein moving the support member axially moves the scaffold longitudinally from a first position within the body lumen to a second position within the body lumen with the scaffold in the expanded state to accommodate peristalsis, wherein the first and second end regions of the expandable scaffold extend axially beyond an entirety of the support member in both the first and second positions.
1 Assignment
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Accused Products
Abstract
An example medical device for treating a body lumen is disclosed. The medical device includes an expandable scaffold positionable within a body lumen wherein the body lumen has an inner surface. The medical device also includes a support member extending circumferentially around and attached to an outer surface of the expandable scaffold. The support member is configured to be positioned between the outer surface of the expandable scaffold and the inner surface of the body lumen and at least a portion of the support member is configured to shift relative to the inner surface of the body lumen. Further, shifting the support member shifts the scaffold longitudinally from a first position within the body lumen to a second position within the body lumen with the scaffold in an expanded state to accommodate peristalsis.
51 Citations
20 Claims
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1. A medical device, comprising:
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an expandable scaffold positionable within a body lumen, the body lumen having an inner surface, the scaffold including a first end region and a second end region opposite the first end region; and a support member extending circumferentially around and attached to an outer surface of the expandable scaffold; wherein the support member is configured to be positioned between the outer surface of the expandable scaffold and the inner surface of the body lumen; wherein when the scaffold and support member are disposed within the body lumen and the scaffold is in an expanded state, at least a portion of the support member is configured to move axially relative to the inner surface of the body lumen, and wherein moving the support member axially moves the scaffold longitudinally from a first position within the body lumen to a second position within the body lumen with the scaffold in the expanded state to accommodate peristalsis, wherein the first and second end regions of the expandable scaffold extend axially beyond an entirety of the support member in both the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A medical device, comprising:
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an expandable stent positionable within a body lumen, the body lumen having an inner surface, the stent including a first end region and a second end region opposite the first end region; and an expandable support member attached to the stent, the support member including a centrally located aperture; wherein the stent is configured to extend through the aperture of the support member such that the expandable support member is positioned between the first and second end regions of the stent; wherein the support member is configured to space the stent away from the inner surface of the body lumen; wherein when the stent and support member are disposed within the body lumen and the stent is in an expanded state, at least a portion of the support member is configured to move axially relative to the inner surface of the body lumen, and wherein the support member axially moves the stent longitudinally from a first position within the body lumen to a second position within the body lumen with the stent in the expanded state to accommodate peristalsis, wherein the first and second end regions of the expandable stent extend axially beyond an entirety of the support member in both the first and second positions. - View Dependent Claims (16, 17, 18, 19)
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20. A method of treating the esophagus, the method comprising:
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advancing a medical device to a target site within the esophagus, the medical device including; an expandable scaffold having a first end region and a second end region opposite the first end region; and a support member extending circumferentially around and attached to an outer surface of the expandable scaffold at a position between the first and second end regions of the expandable scaffold; radially expanding the scaffold and the support member to an expanded state such that the support member is positioned between an inner surface of the esophagus and an outer surface of the stent in the expanded state; and moving at least a portion of the support member in the expanded state axially relative to the inner surface of the esophagus, wherein moving the support member axially moves the scaffold longitudinally from a first position within the esophagus to a second position to accommodate peristalsis in the esophagus, wherein the first and second end regions of the expandable scaffold extend axially beyond an entirety of the support member in both the first and second positions.
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Specification