FIGURE 4.

WhiteSwell System mechanism of action. The system promotes fluid movement from the thoracic duct into the internal jugular vein. Polyurethane balloons mounted on the catheter are inflated to isolate the subclavian vein from the internal jugular vein. As the balloons are inflated, an inner membrane is expanded, providing a lumen for blood flow through the jugular vein between the inflated balloons. Suction is applied to the isolated area between the two inflated balloons, which creates a low-pressure zone (2–5 mmHg) between the inflated balloons.