Occlusion device

Occlusion device for implantation in a body lumen or aneurysm comprising a continuous compressible mesh structure comprising an axial mesh carriage (20), the axial mesh carriage comprising internal coaxial mesh carriages (120), wherein each end of each car is a pinch point (10) in the continuous mesh structure, characterized in that markers (50) are located on the occlusion device surrounding pinch points (10) on each end of each carriage (20).