[An experimental study of acoustic noise of heart valve prostheses]

The paper deals with the acoustic noise that accompanies the work of artificial cardiac valves (ACV). The generation of a noise signal is a substantial disadvantage of ACV work after implantation. A highly sensitive solid-state probe was used to measure the noise signal. The disc ACVs Bjork-Shiley (USA), Omniscience" (Italy), MIKS, a basic (Russia), MIKS with an acoustic gap (Russia), and MIKS-3 were tested. The valves worked under model physiological flow. The disc valves of the MIKS series with an acoustic gap manufactured by ROSINVEST (Russia) were found to have the least noise.