Some of this does the work of a tube like my brother Bill has in his jugular for hydrocephalus. It mainly is a valve though. They have patented what I believe evolution invented, with notable additions. The valves are often destroyed to get good blood flow. Other alternative is porcine, with host/graft problems.
Reading it, I guess they probably had the help of Dr. Dake (and others). This invention, if it works, could be a blockbuster because it could be used in veins or arteries, and in the heart where they currently use porcine valves.
They seemed to have solved the problem of stent migration, which happened in one of Dr. Dake's first patients, in 2009, and necessitated open heart surgery. It has not to my knowledge been a problem, thanks to the bravery of the patient "radeck", but Dr. Dake has been prevented from doing his trial since then, by the Board of Governors of Stanford, I think. Royalties may offset liability settlements, if he or the University stand to gain.
cheerleader says it's a Silicon Valley startup.
A lot of this invention is in the devices' installation: they travel from the catheter' entry point at the groin, through the vein, to the site, where they are expanded. The jugular doesn't have to be cut.
One doctor in India is advertising a homologous stem cell transplant (probably from marrow), that, when added to CCSVI procedure, seems to be a cure for at least one guy, probably more.
Is this getting to be a surfeit of solutions?
"Try - Just A Little Bit Harder" - Janis Joplin
CCSVI procedure Albany Aug 2010
'MS' is over - if you want it
Patients sans/without patience