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Stent having varied amounts of structural strength along its length

  • US 6,027,526 A
  • Filed: 10/03/1997
  • Issued: 02/22/2000
  • Est. Priority Date: 04/10/1996
  • Status: Expired due to Term
First Claim
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1. An intravascular stent for implanting in a body lumen, comprising;

  • a single walled tubular body of a biocompatible material having a first end section, a second end section, and a central section, each said section being defined by the thickness of the material making up the wall of the tubular body;

    said tubular body further having an open lattice structure formed from a single piece of metal alloy and a dapted for radial expansion from a first compressed diameter, to an enlarged, second diameter; and

    said first end section wall thickness being greater than said central section wall thickness and said second end section wall thickness, so that when said stent is expanded to said enlarged, second diameter, said first end section is radially stronger and more crush resistant than said central section or said second end section.

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