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Vascular stent and method of making and implanting a vacsular stent

  • US 5,443,498 A
  • Filed: 12/06/1993
  • Issued: 08/22/1995
  • Est. Priority Date: 10/01/1991
  • Status: Expired due to Term
First Claim
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1. A vascular stent, comprising:

  • a continuous wire forming a substantially tubular body with a plurality of cells staggered around a circumference of the tubular body, the tubular body being longitudinally flexible and having an expanded state, an unexpanded state, and a wall thickness that is not substantially greater than said wire, each of said cells having a plurality of sides formed by said continuous wire and shared with an other of said cells, adjacent sides in individual ones of said cells being joined by a bend in said continuous wire, selected of said cells each making non-overlapping and abutting contact with an other of said cells;

    said sides of said cells extending substantially parallel to a longitudinal axis of the tubular body when the tubular body is in said unexpanded state; and

    said sides of said cells extending oblique to said longitudinal axis of the tubular body when the tubular body is in said expanded state, whereby said tubular body when positioned in a tortuous vessel bends along said longitudinal axis and conforms to the shape of the tortuous vessel an axial length of the tubular body being substantially equivalent in said unexpanded and said expanded state.

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