Stent Graft Device With Anchoring Members Having Adjustable Geometries
First Claim
1. A stent graft device comprising:
- an expandable frame;
a covering extending over said expandable frame; and
an anchoring member coupled to said expandable frame and extending along a length of said expandable frame,wherein said anchoring member moves axially with minimal displacement in tissue growth over said anchoring member for removal of said anchoring member from said expandable frame.
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Accused Products
Abstract
A stent graft device that includes a frame, a cover material covering the frame, and an anchoring member having an adjustable geometry is provided. The anchoring member may be incorporated as part of the frame or coupled thereto. The anchoring member may be formed of a material having a tensile strength such that it can be bent, straightened, or otherwise changed in shape. Tissue growth over and/or around the anchoring member anchors the stent graft device within a lumen. During removal of the stent graft device, the geometry of the anchoring member changes to allow the anchoring member to be removed from the tissue growth along a removal path with minimal trauma. The design and/or shape of the anchoring member is not particularly limited so long as the anchoring member has an adjustable geometry that permits tissue overgrowth and subsequent removal from the tissue overgrowth with minimal trauma.
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Citations
21 Claims
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1. A stent graft device comprising:
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an expandable frame; a covering extending over said expandable frame; and an anchoring member coupled to said expandable frame and extending along a length of said expandable frame, wherein said anchoring member moves axially with minimal displacement in tissue growth over said anchoring member for removal of said anchoring member from said expandable frame. - View Dependent Claims (2, 3, 4)
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5. A stent graft device comprising:
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an expandable frame; a covering extending over said expandable frame; and an anchoring member coupled to said expandable frame and extending along a length of said expandable frame in an implanted state, said length defining a removal path of said anchoring member, wherein said anchoring member is adapted for removal from said expandable frame along said removal path of said anchoring member. - View Dependent Claims (6, 7, 8, 9)
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10. A stent graft device comprising:
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an expandable support frame having incorporated therein an anchoring member to anchor said stent graft device in a lumen; and a covering extending over said expandable support frame, wherein a geometry of said anchoring member changes for removal of said anchoring member from tissue growth over said anchoring member. - View Dependent Claims (11, 12, 13)
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14. A method of removing a stent graft device from a lumen, said method comprising:
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providing a stent graft device having an anchoring member coupled thereto, said anchoring member extending along a length of said expandable frame, wherein said length defines a removal path of said anchoring member; and applying a mechanical force to said anchoring member to remove said anchoring member from said stent graft device along said removal path. - View Dependent Claims (15, 16)
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17. A method of removing a stent graft device from a lumen, said method comprising:
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providing a stent graft device having incorporated therein an anchoring member extending outwardly from said stent graft device, applying a mechanical force to change a geometry of said anchoring member to remove said anchoring member from along a removal path defined by said anchoring member. - View Dependent Claims (18, 19, 20, 21)
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Specification