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Optimal ratio of polar and bending moment of inertia for stent strut design

  • US 9,782,280 B2
  • Filed: 01/11/2016
  • Issued: 10/10/2017
  • Est. Priority Date: 04/22/2010
  • Status: Expired due to Fees
First Claim
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1. A stent, comprising:

  • an elongated tubular member having struts forming a stent pattern comprising cylindrical rings connected by links;

    the struts having a transverse cross-section that is a four sided polygon, a first side and a second side are opposite each other and spaced apart by a distance h;

    a third side and a fourth side are opposite each;

    the first side and second side are parallel to each other and the third side and the fourth side are non-parallel to each other; and

    the lengths of the first side, second side, third side and fourth side are selected so that a ratio of twisting resistance (J) to bending resistance (Iyc) in the struts is in the range from 1.508458 to 1.538975.

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