A Novel Control Method for Rotary Blood Pumps as Left Ventricular Assist Device Utilizing Aortic Valve State Detection

<div>An example of partial support and full support detection for contractility (a, b), heart rate variations (c, d) and systemic vascular resistance (e, f) in the cardiovascular system for rotary blood pumps Sputnik 1 (a, c, e) and Sputnik 2 (b, d, f); <svg height="11.927pt" id="M41" style="vertical-align:-3.291101pt" version="1.1" viewbox="-0.0498162 -8.6359 18.2226 11.927" width="18.2226pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,4.719,3.132)"><path d="M722 32C646 41 636 48 622 116L544 496L509 667L472 658L153 123C106 45 93 42 27 32L18 0H259L268 32C178 40 172 48 204 107L272 233H509C523 180 533 137 540 96C548 50 546 39 466 32L457 0H714L722 32ZM502 283H299L448 547H450L502 283Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,11.022,3.132)"><path d="M735 650H491L482 618L516 614C568 608 571 595 541 535L299 115H297L196 559C187 600 195 608 238 614L265 618L275 650H26L18 618C79 611 98 605 115 527L234 -9H272C389 197 542 449 591 523C647 608 656 612 726 618L735 650Z"></path></g></svg>—index for the detection of aortic valve state listed in Table <a href="../tab2/">2</a>.</div>

BioMed Research International

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Figure 2

Figure 2: A Novel Control Method for Rotary Blood Pumps as Left Ventricular Assist Device Utilizing Aortic Valve State Detection 