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

  • US 8,328,863 B2
  • Filed: 04/22/2010
  • Issued: 12/11/2012
  • 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;

    at least some of the struts each having a transverse cross-section that is a four sided polygon, a first side and a second side are opposite each other and have substantially the same height;

    a third side and a fourth side are opposite each other, the third side being shorter than the fourth side; and

    the lengths of the first side, second side, third side and fourth side are selected so that a ratio of twisting resistance to bending resistance in the at least some of the struts is 1.51.

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