Novel compliant scaffold with specific design for venous system: results of a porcine model study.
Full paper, BioMed Research, Dec.2017 http://downloads.hindawi.com/journals/bmri/aip/7312315.pdf

“....Conclusions
This study documented a favourable safety profile of Petalo CVS, a novel endovenous device based on specific concepts. The novel configuration of the scaffold and the respect of the compliance of venous wall provided an excellent patency, even without the use of anticoagulant drugs.”