Align parts

Hello,

I need your help to the above problem...

I have three parts ,artery,artery's midline and stent geometry .

What I am trying to do is flex the stent geometry according to the midline geometry.

These two geometries do not have the same origin so when I make a assembly of these two parts  lie down in different sides in solidworks window.

Does anybody have an idea how to manage with this?

Thanks a lot...

SolidworksParts And Features