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Highly flexible stent and method of manufacture

  • US 10,390,978 B2
  • Filed: 09/30/2016
  • Issued: 08/27/2019
  • Est. Priority Date: 02/14/2006
  • Status: Expired due to Fees
First Claim
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1. An implantable prosthesis comprising:

  • a continuous helical winding having a plurality of circumferential sections circumscribing a helical axis, which is cut by an orthogonal plane, from a first end to a second end to define a tube, the plurality of circumferential sections being spaced apart along the helical axis, each of the plurality of circumferential sections having a non-orthogonal helical angle relative to the helical axis;

    at least one bridge configured to connect one circumferential section to an axially-spaced adjacent circumferential section, the at least one bridge extending along its entire length on a plane orthogonal to the helical axis;

    at least one annular ring connected to one of the first and second ends of the continuous helical winding, the at least one annular ring orthogonal to the helical axis; and

    at least one marker having a first end connected to the at least one annular ring, and a second end connected to the continuous helical winding,wherein the implantable prosthesis is operable from a contracted state to an expanded state and in the contracted state the at least one bridge creates a circumferential offset between adjacent circumferential sections that when measured in the plane orthogonal to the helical axis is equal to the length of the at least one bridge and in the expanded state the at least one bridge maintains the circumferential off-set.

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