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http://dx.doi.org/10.3795/KSME-B.2014.38.12.971

Estimation of Stroke Volume Based on Air Pressure in Air Tube with Pneumatic Pulsatile Ventricular Assist Device  

Kang, Yu Min (School of Fusion System Engineering, Kangwon Nat'l Univ.)
Lee, Jin Hong (School of Fusion System Engineering, Kangwon Nat'l Univ.)
Her, Keun (Dept. of Cardiovascular and Thoracic Surgery, Soonchunhyang University Hospital)
Choi, Seong Wook (School of Fusion System Engineering, Kangwon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.12, 2014 , pp. 971-974 More about this Journal
Abstract
A ventricular assist device (VAD) is used for bridge to heart transplantation and heart diseases. Knowing the status of a pneumatic pulsatile VAD when implanting it into the body is important: when the velocity of blood flow through the VAD is slow, a thrombus may occur, and thrombosis can be fatal to a patient. In order to determine the state of a VAD, various sensors need to be implanted. Because this introduces the risk of infection and difficulties with sensor management, we developed a method for estimating the state of a VAD indirectly via the pressure in an air tube that can be measured in vitro. We compared the measured values to in vitro experimental results. The estimated and measured values showed some errors, but the accuracy can be improved by refining the estimation process to minimize the risk of infection.
Keywords
Ventricular Assist Device; Estimation of Stroke Volume; Air Pressure;
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Times Cited By KSCI : 1  (Citation Analysis)
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