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US 8,940,038 B2Granted
Low profile stent with flexible link
AssigneeAbbott Cardiovascular Systems Inc.
InventorsStephen D. Ainsworth, Andreina P. Gomez
Life of this patent
Estimating the term…
Abstract
The invention provides an improved stent design for repairing vasculature, the stent having rings including struts defining first peaks and second peaks, selected second peaks of adjacent rings being connected by links. The stent design incorporates non-linear links with undulating portions extending generally perpendicular to or circumferentially with respect to a longitudinal axis of the stent and adjacent first peaks with different longitudinal lengths such that stent flexibility is increased without sacrificing stent compression for delivery.
Claims12
A stent, comprising:
- a cylindrical body having a plurality of rings aligned along a common longitudinal axis, the rings having a first delivery diameter and a second implanted diameter, the rings including struts defining a plurality of first peaks directed in a first longitudinal direction and a plurality of second peaks directed in a second, opposite longitudinal direction;
- at least one link connecting a second peak of one ring with a second peak of another ring and having an undulating portion;
- and
- each link being located between a short first peak and a long first peak, the short first peak having struts defining a shorter longitudinal length than the long first peak to provide a space for the undulating portion, wherein at least one long first peak aligns with a second peak of an adjacent ring which is attached to a link.
1 more element
A stent, comprising:
- a cylindrical body having a plurality of rings aligned along a common longitudinal axis, the rings having a first delivery diameter and a second implanted diameter, the rings including struts defining a plurality of first peaks directed in a first longitudinal direction and a plurality of second peaks directed in a second, opposite longitudinal direction;
- at least one link connecting a second peak of one ring with a second peak of another ring and having an undulating portion;
- at least one straight link connecting a second peak of one ring with a second peak of another ring;
- wherein at least one first peak adjacent each link with an undulating portion has a shorter longitudinal length than another first peak adjacent the link with the undulating portion to thereby provide a space for the undulating portion when the cylindrical body is in its first delivery diameter and a plurality of first peaks on each ring have the same longitudinal length.
1 more element
Dependencies are inferred from the claim text.