In Vitro Hydrodynamic Performance Evaluation of Valve Repair System

Objective In order to meet the treatment requirements of mitral regurgitation disease, this study designed a new type of valve repair system and evaluated its hydrodynamic performance.

Methods A mitral regurgitation model was designed, and a valve repair system was loaded on the regurgitation model, and the pulsatile flow test and steady back flow leakage test were conducted.

Results The pulsatile flow test result showed that the percentage of reflux after product implantation was lower than that before implantation under different concentric output and different reverse pressures, and the average cross valve pressure difference after implantation wss less than 5 mmHg. The steady back flow leakage test results showed that as the reverse pressure increased, the leakage amount of the valve repair system after implantation increased.

Conclusion The developed valve repair system has good hydrodynamic performance, which indicates the feasibility of its treatment of clinical mitral regurgitation.