Stent With Sinusoidal Wave Form and Orthogonal End and Method for Making Same
AssigneeMedtronic Vascular, Inc.
InventorRui Lam
Life of this patent
Estimating the term…
Abstract
A stent includes a wave form that includes a plurality of struts and a plurality of crowns. The wave form is wrapped around a longitudinal axis so as to define a plurality of turns, including a first turn disposed at a first angle and a second turn disposed at a second angle relative to the longitudinal axis. A first connection connects an end of the wave form that started the first turn to an adjacent crown of the wave form that completed the first turn, a second connection connects a first crown of the second turn to an adjacent crown that completed the second turn, and a third connection connects a crown of the first turn to an adjacent crown of the second turn. The wave form is disrupted between the first turn and the second turn.
Claims15
A method of manufacturing a stent, the method comprising:
- forming a wave form having a plurality of struts and a plurality of crowns, each crown connecting two adjacent struts;
- wrapping the wave form about a longitudinal axis to define a plurality of turns so that a first turn is disposed at a first angle relative to the longitudinal axis, a second turn is disposed at a second angle relative to the longitudinal axis, the second angle being less than the first angle;
- connecting an end of the wave form that started the first turn to an adjacent crown of the wave form that completed the first turn with a first connection;
- connecting a first crown of the second turn of the wave form to an adjacent crown that completed the second turn with a second connection;
- connecting a crown of the first turn of the wave form that is separated from the crown of the wave form that completed the first turn by a single strut to an adjacent crown of the second turn of the wave form with a third connection;
- and
- disrupting the wave form between the first turn and the second turn.
A stent comprising:
- a wave form comprising a plurality of struts and a plurality of crowns, each crown connecting two adjacent struts, the wave form being wrapped around a longitudinal axis so as to define a plurality of turns, a first turn being disposed at a first angle relative to the longitudinal axis, a second turn being disposed at a second angle relative to the longitudinal axis, the second angle being less than the first angle;
- a first connection that connects an end of the wave form that started the first turn to an adjacent crown of the wave form that completed the first turn;
- a second connection that connects a first crown of the second turn to an adjacent crown that completed the second turn;
- and
- a third connection that connects a crown of the first turn that is separated from the crown of the wave form that completed the first turn by a single strut to an adjacent crown of the second turn,
- wherein the wave form is disrupted between the first turn and the second turn.
Dependencies are inferred from the claim text.