Weighing individual components to mix a blood-like fluid for testing an artificial heart valve

Weighing individual components to mix a blood-like fluid for testing an artificial heart valve

In cardiac surgery, a basic distinction is made between mechanical and biological heart valves. Mechanical valves are characterized by particularly good hemodynamics (flow resistance in the blood flow). To test the valve, a test fluid is pressed through the valve in a precisely defined amount and at a precisely defined pressure. The test fluid, which is similar to blood, is mixed. The individual components are weighed using precision scales. This is an important process that must be carried out with great precision so that the test has the right relevance.

To test an artificial heart valve, a test fluid is pressed through the valve in a precisely defined amount and at a precisely defined pressure. The test fluid, which is similar to blood, is mixed. The individual components are weighed using precision scales. This is an important process that must be carried out with great precision so that the test has the right relevance.