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Stent prosthesis having select flared crowns

  • US 8,034,099 B2
  • Filed: 03/27/2008
  • Issued: 10/11/2011
  • Est. Priority Date: 03/27/2008
  • Status: Expired due to Fees
First Claim
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1. A stent for use within a body lumen, the stent comprising:

  • a stent strut having a sinusoidal pattern of straight segments and crowns, wherein all of the crowns of the stent strut are approximately parallel with a longitudinal axis of the stent when the stent is in an unexpanded configuration for delivery within the body lumen; and

    a Y-shaped member attached to at least one crown of the stent strut such that the Y-shaped member is substantially centered within the at least one crown and first and second straight segments attached to the at least one crown, wherein the Y-shaped member includes a V-shaped base and a tether, the V-shaped base having a first end directly connected to the first straight segment, a second end directly connected to the second straight segment and an apex attached to the tether such that the tether extends between the apex of the V-shaped base and a valley formed by the at least one crown,wherein when the stent is in an expanded configuration for contacting a vessel wall of the body lumen the at least one crown having the Y-shaped member attached thereto radially flares outward from an outer surface of the stent such that the at least one crown is at an acute angle with respect to the longitudinal axis of the stent.

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