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Expandable microporous prosthesis

  • US 5,728,150 A
  • Filed: 11/21/1996
  • Issued: 03/17/1998
  • Est. Priority Date: 07/29/1996
  • Status: Expired due to Term
First Claim
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1. A method of minimizing roll bias in a self-expandable tubular prosthesis, comprising the steps of:

  • providing a flexible sheet;

    creating at least a first and a second group of apertures through the sheet; and

    rolling the sheet about a longitudinal axis to form a self expandable tubular prosthesis;

    wherein the first group of apertures induces a roll bias component in a first direction along the longitudinal axis, and the second group of apertures induces a roll bias component in a second, opposite direction along the longitudinal axis to minimize any net roll bias in the tubular prosthesis.

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