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US 2023/0054898 A1Published application
Kink-resistant expandable sheath
AssigneeEdwards Lifesciences Corporation
InventorsNikolai Gurovich, Roy Shitrit, Itay Avinathan
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Abstract
Expandable sheaths are disclosed herein. In some aspects, the sheath comprises at least one plurality of struts arranged to form an expandable cylindrical frame such that the formed frame is kink resistant. The disclosed frames are configured to expand from a first diameter d1 in an unexpanded position to a second diameter d2 an expanded position upon passage of a medical device, while maintaining the kink resistance. Also disclosed are methods of making the same.
Claims20
An expandable sheath for deploying a medical device comprising:
- at least one plurality of struts arranged to form an expandable cylindrical frame having a proximal and distal end, an inner surface and an outer surface, and a central axis extending along a length of the frame;
- wherein the expandable cylindrical frame has a first length and an opposite second length, and wherein, in a first position, at least a portion of the first length and at least a portion of the second length are substantially the same;
- wherein the expandable cylindrical frame is movable from the first position to a second position by curving away from the central axis, wherein at the second position at least a portion of the first length shortens and at least a portion of the second length elongates;
- wherein the inner surface of the expandable cylindrical frame defines a lumen configured to receive a medical device;
- wherein the expandable cylindrical frame is configured to expand from a first diameter d1 in an unexpanded position to a second diameter d2 in an expanded position upon passage of a medical device;
- and
- wherein the expandable cylindrical frame is kink-resistant.
4 more elements
Dependencies are inferred from the claim text.