Stent with dual support structure
AssigneeIntraTherapeutics, Inc.
InventorPaul J. Thompson
Life of this patent
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Abstract
A intraluminal stent comprises a reticulated tube having an un-deployed diameter and expandable to an enlarge diameter. The tube includes a structural beam extending between first and second ends. The structural beam changes from a first geometry to a second geometry when the tube changes from the un-deployed diameter to the enlarged diameter. The structural beam includes first and second longitudinal elements each extending at least partially between the first and second ends and with a spacing between the first and second elements. Each of said first and second elements changes from the first geometry to the second geometry when the tube changes from the un-deployed diameter to the enlarged diameter for the spacing to remain substantially unchanged as the tube changes from the un-deployed diameter to the enlarged diameter.
Claims10
An intraluminal stent comprising:
- a stent body expandable from an un-deployed orientation to a deployed orientation;
- the stent body having cell defining portions with opposing surfaces defining an open cell bounded by the cell defining portion, the cell having a major axis (X.sub.M) and a minor axis (X.sub.m);
- each cell defining portion including a first longitudinal segment and a second longitudinal segment, the first and second longitudinal segments connected at first and second ends, each of the first and second longitudinal segments comprising:
- (a) first and second spaced-apart longitudinal elements having a spacing therebetween;
- (b) a longitudinal axis (X.sub.a), the longitudinal axis (X.sub.a) for the first longitudinal segment positioned parallel to and on a first side of the cell major axis (X.sub.M), and the longitudinal axis (X.sub.a) for the second longitudinal segment positioned parallel to and on a second opposite side of the cell major axis (X.sub.M);
- (c) an undulating pattern comprising a plurality of peaks spaced outwardly from and a plurality of valleys spaced inwardly from the longitudinal axes (X.sub.a), the spacing extending at least partially along the undulating pattern between the first and second ends;
- the first and second longitudinal segments being configured such that the spacing between the first and second spaced-apart longitudinal elements remains substantially unchanged as the stent body is expanded from the un-deployed orientation to the deployed orientation.
Dependencies are inferred from the claim text.