Stent

  • US 6,007,574 A
  • Filed: 01/22/1998
  • Issued: 12/28/1999
  • Est. Priority Date: 12/28/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A stent shaped as a three-dimensional body having first and second ends and a side surface disposed between the first and second ends, the side surface being formed by two groups (2, 3) of elongated elements (1), each of elongated elements (1) being formed from an elastic thread extending in a helical configuration along a longitudinal axis of the said body, the elements of the first group having a common first direction of winding and the elements of the second group having a common second direction of winding opposite to the first direction, wherein:

  • the elongated elements (1) of the first and second groups (2,

         3) are axially displaced from the elongated elements of the same group;

    the elongated elements of the first group (2) are interwoven with the elongated elements of the second group (3) intermediate the first and second ends of the body;

    each elongated element from at least one selected subgroup of the first group (2) and/or the second group is made of the same thread as at least one other elongated element; and

    each portion of the thread for connecting elements made of the same thread is formed as a curvilinear segment (5) having a length substantially less than a length of the body between the first and second ends and a shape and orientation substantially different from shape and orientation of any of the elongated elements (1).

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