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Prosthesis adapted for placement under external imaging

  • US 9,895,227 B2
  • Filed: 04/11/2012
  • Issued: 02/20/2018
  • Est. Priority Date: 02/26/2003
  • Status: Active Grant
First Claim
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1. An expandable prosthesis placeable into a body lumen, the expandable prosthesis comprising:

  • a support structure configured to engage the walls of the body lumen, the support structure having a cross-sectional profile that includes a first axis;

    an artificial valve attached to the support structure and comprising a pair of opposing leaflets that define an orifice, the orifice including a first end and a second end located about the first axis; and

    a first radiopaque member located about the first end of the orifice and a second radiopaque member located about the second end of the orifice, each of the first radiopaque member and the second radiopaque member configured to facilitate visual identification of the rotational orientation of the first axis and the orifice while the prosthesis is being imaged externally;

    wherein the orifice of the artificial valve opens and closes in response to fluid flowing therethrough.

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