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Tapered implantable device and methods for making such devices

  • US 9,814,560 B2
  • Filed: 12/02/2014
  • Issued: 11/14/2017
  • Est. Priority Date: 12/05/2013
  • Status: Active Grant
First Claim
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1. A method of forming a tapered implantable article with a longitudinally compressed tapered portion, the method comprising:

  • forming a tapered portion having a first longer length in an ePTFE tubular member using a first mandrel having a first, longer tapered length segment;

    removing the ePTFE tubular member from the first mandrel;

    longitudinally compressing the tapered portion having a first longer length of the ePTFE tubular member on a second mandrel having a second, shorter tapered length segment into a tapered portion having a second shorter length, wherein the second shorter length is at least 15% shorter than the first longer length; and

    removing the ePTFE tubular member from the second mandrel, the longitudinally compressed tapered portion maintaining the second shorter length following removal from the second mandel.

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