Pre-strained stent elements
AssigneeW. L. Gore & Associates, Inc.
InventorsJames D. Silverman, Olga Baykova
Life of this patent
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Abstract
Various aspects of the present disclosure are directed toward apparatuses, systems and methods that include a self-expanding endoprosthesis having a reduced configuration and a deployed configuration. The self-expanding endoprosthesis may include a self-expanding stent element having an enlarged diameter and a graft component attached to at least a portion of the self-expanding stent element and having an enlarged diameter less than the enlarged diameter of the self-expanding stent element in the deployed configuration.
Claims15
A self-expanding endoprosthesis having a reduced configuration and a deployed configuration, the self-expanding endoprosthesis comprising:
- a self-expanding stent element having an enlarged diameter, the self-expanding stent element configured to exhibit plastic strain at the deployed configuration and in response to being reduced to the reduced configuration;
- and
- a graft component attached to at least a portion of the self-expanding stent element and having an enlarged diameter less than the enlarged diameter of the self-expanding stent element in the deployed configuration;
- wherein in the deployed configuration, the self-expanding stent element exerts a radially expansive force to the graft component;
- the graft component having a yield strength greater than the radially expansive force and being configured to radially maintain the self-expanding stent element at the enlarged diameter of the graft component upon application of a second radially expansive force greater than the radially expansive force of the self-expanding stent element without the graft component enlarging in diameter by between more than about 0.1 mm and about 0.5 mm and the self-expanding stent includes apices that comprise intradoses and extradoses, and the graft component is configured to maintain compression of the intradoses of the apices.
A self-expanding endoprosthesis having a reduced configuration and a deployed configuration, the self-expanding endoprosthesis comprising:
- a self-expanding stent element having an enlarged diameter, the self-expanding stent element configured to exhibit plastic strain at the deployed configuration and in response to being reduced to the reduced configuration;
- and
- a graft component attached to at least a portion of the self-expanding stent element and having an enlarged diameter less than the enlarged diameter of the self-expanding stent element in the deployed configuration;
- wherein in the deployed configuration, the self-expanding stent element exerts a radially expansive force to the graft component;
- the graft component being configured to radially maintain the self-expanding stent element at the enlarged diameter of the graft component upon application of a second radially expansive force greater than the radially expansive force of the self-expanding stent element without the graft component enlarging in diameter by between more than about 0.1 mm and about 0.5 mm and the self-expanding stent includes apices that comprise intradoses and extradoses, and the graft component is configured to maintain compression of the intradoses of the apices.
Dependencies are inferred from the claim text.