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Extendible stent apparatus

  • US 7,678,142 B2
  • Filed: 08/04/2004
  • Issued: 03/16/2010
  • Est. Priority Date: 11/04/1996
  • Status: Expired due to Fees
First Claim
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1. A stent for placement in a bifurcated body lumen, said stent comprising:

  • a main tubular body comprised of serpentine rings of joined struts and hinges, the body having a first end, a second end, and a side opening between said ends, wherein the struts and hinges of the serpentine rings of a first portion of the main tubular body between the first end and the side hole define a repeating geometric pattern, the struts and hinges of the serpentine rings of a second portion of the main tubular body between the side hole and the second end define a repeating geometric pattern, the repeating geometric pattern of the first portion being different than the repeating geometric pattern of the second portion,wherein the first portion is expanded by a first radially outward pressure in the range from 1 atmospheres to 10 atmospheres and the second portion is expanded by a second radially outward pressure in the range from 2 atmospheres to 18 atmospheres.

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