Flow regulation in multi branched models of blood vessels.

Experimental models are an important instrument for investigations of flow characteristics in blood vessels. For realistic conditions all essential branches of a vessel need to be simulated and controlled. An outflow controlling system was designed for a study on flow conditions in a cerebral aneurysm model with multi outlets. The volumetric flow varied between the outlets. The construction for regulating the outflow is based on the principle of communicating vessels. It was attached to the experimental setup and allowed a facile verification of the outflow conditions. It is now possible to adjust and monitor the designated flow rate visually in a simple, effective and low-prized way.