Patent ID: 9132001
Filing Date: 2015-09-15
Classification: A61F,A61L,C23C,Y10T

Abstract:
1. A method of making an implantable medical graft comprising the steps of: a. Providing a generally tubular implantable medical graft having a continuous cross section, the generally tubular implantable medical graft comprising a graft-forming material selected from the group consisting of biocompatible metals and pseudometals, the graft forming material including circumferential corrugations defined by a radially undulating pattern of longitudinally alternating radially extending peaks and valleys in an abluminal wall surface of the graft-forming material and a radially undulating longitudinally alternating pattern of radially extending peaks and valleys in a luminal wall surface of the graft-forming material, wherein each peak in the luminal surface is longitudinally coincident with each peak in the abluminal surface and each valley in the luminal surface is longitudinally coincident with each valley in the abluminal surface, wherein the peaks and valleys are disposed along at least a portion of the longitudinal axis of the graft-forming material and at least one of a plurality of non-undulated circumferential regions is positioned at the end regions of the graft-forming material; and b. forming a plurality of microperforations disposed through the corrugations defined by coincident peaks and the coincident valleys wherein the plurality of microperforations in combination with the corrugations provide recoverable compliance to the graft.