Enhancement of hydrodynamic properties of blood pump using multiple pumps based on synchronous magnetic radial coupling

Multiple pump systems are generally able to enhance pressure and flow rates through parallel and serial connections. However, the use of multiple pumps has various drawbacks, including their high power consumption, complex configuration, and large volumes. These problems make these systems unsuitable as blood pumps. To avoid these issues, we propose a new method of multiple-pump system for use with VADs (Ventricular Assist Devices) and BiVADs (Bi Ventricular Assist Devices). In particular, we focus on enhanced hydrodynamic performance through the use of a magnetic pump. The system employs synchronous magnetic radial coupling, thereby controlling up to four pumps through a single pump driver. Through serial and parallel configurations, the multiple pumps are able to extend the operating range of pressure and flow rate for use in blood pumps. The enhanced hydrodynamic performance was verified through various experimental analyses.