Parallel flow endovascular stent and deployment apparatus therefore

TL;DR: A pressure expandable stent with a first internal diameter and subsequently expandable to a second internal diameter is described in this paper, where the first and second ends of the wire members are positioned in co-axial alignment and fused to one another.

Abstract: A pressure expandable stent device having a first internal diameter and subsequently expandable to a second internal diameter. The stent device comprises an elongate wire member having first and second ends and a multiplicity of radius bends formed at spaced locations formed along the length thereof. Each of the bends forms an angle of approximately 180° so as to define therebetween multiple straight segments of the wire members which are disposed in generally parallel, convoluted relation to one another. The first and second ends of the wire members are positioned in co-axial alignment and fused to one another. The fusing of the first and second ends of the wire member to each other causes the straight segments to assume a cylindrical array about a longitudinal axis which defines an internal flow channel of the first internal diameter therewithin. The stent device is radially expandable to a configuration where the internal flow channel is of the second internal diameter.