Extracorporeal diffusion study.

The top panel is a figure of the extracorporeal experiment for diffusion experiments. Blood from the pig is circulated via the arterial-venous pressure differential over the top of the SNM. The dialysate flowed in a counter-current direction via a peristaltic pump over the backside of the SNM. A pressure sensor was used to measure the pressure on the dialysate side. The bottom panel shows a photograph of the extracorporeal experiment. Blood tubing was attached to the arterial catheter of the pig and blood flowed via the arterial-venous pressure differential through the flow cell. The blood was returned back to the pig via blood tubing attached to the venous catheter. The red arrows indicate the direction of blood flow. Dialysate flowed in a counter-current direction via a peristaltic pump. The blue arrows indicate the direction of dialysate flow. A pressure sensor measures the pressure on the dialysate side.