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Stents twisted prior to deployment and untwisted during deployment

  • US 10,524,945 B2
  • Filed: 02/08/2017
  • Issued: 01/07/2020
  • Est. Priority Date: 10/04/2013
  • Status: Active Grant
First Claim
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1. A stent assembly comprising:

  • a stent having a first end, a second end, and a tubular, mesh wall between the first end and the second end, the mesh wall being contiguous in circumferential and longitudinal directions from the first end to the second end, the stent having an untwisted rest configuration in the absence of external forces, and a twisted configuration in which the stent is twisted about the longitudinal axis from the rest configuration to a sufficient amount that a segment of the stent between the first and second ends collapses upon itself, forming a constriction,a sheath, wherein the stent is held in the sheath in the twisted configuration; and

    a pusher having an elongate member at least partially disposed within the sheath and a stent-engagement member configured to abut and engage the stent.

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