Wow. I was always thinking there had to be a way to filter the blood but I was looking at it the wrong way. The way of blocking the redblood and haveing the viruses go through the screen is awesome.
This is going to he hugh!
This technique is similar to the way I separated large proteins in solution from salts. A substance called a Sephedex gel is placed into a tube. The "gel" is made of small hollow spheres with holes in them. When the protein/salt solution is poured over the gel, the salt solution experiences the entire volume inside and outside the gel globes see example. The larger proteins experience only the excluded volume, thus they flow faster though the Sephadex gel tube.
This "purifier" adds a new dimension. The interior of the globes contains an antibody that captures the virus. It is sort of a "roach motel" for viruses. It's a very nice concept. The monoclonal antibody techniques created about 20 years ago paved the way for creation of custom antibody for use in this fashion.