The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2008
Filed:
Sep. 10, 2004
Jerry Q. Dong, Oakland, NJ (US);
John Spiridigloizzi, Sharon, MA (US);
Ronald Rakos, Neshanic Station, NJ (US);
Krzysztof Sowinski, Wallington, NJ (US);
William Quinn, Swampscott, MA (US);
Jerry Q. Dong, Oakland, NJ (US);
John Spiridigloizzi, Sharon, MA (US);
Ronald Rakos, Neshanic Station, NJ (US);
Krzysztof Sowinski, Wallington, NJ (US);
William Quinn, Swampscott, MA (US);
Scimed Life Systems, Inc., Maple Grove, MN (US);
Abstract
A method for providing dilation resistance to an implantable tubular graft includes the steps of (a) providing a graft having opposed open ends and a textile wall extending in a lengthwise direction therebetween defining a graft diameter, wherein the textile wall has radially extending yarns having a radial extent which inter-engage longitudinally extending yarns having a longitudinal extent to define a textile pattern and further wherein the radially extending yarns are obliquely oriented to the lengthwise direction of the graft, thereby defining a first acute angle from the lengthwise direction of the graft; (b) providing an elongate tubular mandrel having a diameter which differs from the graft diameter by a factor of at least 1.5; (c) positioning the graft over the mandrel to radially distend the graft, thereby reorienting the radially extending yarns to reduce the radial extent and to shift the radially extending yarns to a second acute angle from the lengthwise direction of the graft to define an reoriented textile pattern, wherein the second acute angle is greater than the first acute angle; and (d) heat setting the graft at a first temperature to set the inter-engaging yarns in the reoriented textile pattern to provide a graft with improved dilation resistance.