Patent ID: 8621975
Filing Date: 2014-01-07
Classification: A61B,A61F,B21F

Abstract:
1. A method of making a vascular device for placement in a body lumen comprising: braiding a tubular structure including a proximal portion and a distal portion, wherein the proximal portion defines a first pick count and the distal portion defines a second pick count, the first pick count being different than the second pick count; and folding the tubular structure onto itself such that a surface of the proximal portion of the tubular structure is adjacent a surface of the distal portion of the tubular structure to form an inner layer and an outer layer, wherein folding the tubular structure onto itself comprises defining a leading edge at a transition between the first pick count and the second pick count, wherein, after being folded, the relationship between the reduction in diameter and the elongation of the inner layer is substantially the same as the relationship between the reduction in diameter and the elongation of the outer layer as the vascular device is moved between an expanded state and a contracted state.