Adaptive physiological speed/flow control of rotary blood pumps in permanent implantation using intrinsic pump parameters

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

An adaptive speed/flow controller was developed based on previous work using the intrinsic pump parameters. Those intrinsic parameters were measured by long-term reliable sensors. The adaptive controller was designed to track the varying total peripheral resistance and update the controller parameters correspondingly. The controller was studied in computer simulation on two different types of pumps, whose hydrodynamic characteristics are described by static and dynamic equation, respectively. The pump pressure rise of both pumps is accessible. With the designed adaptive controller, the abnormal hemodynamic values indicating congestive heart failure, including total blood flow, mean aortic pressure, left ventricular end-diastolic pressure, are all successfully restored to normal ranges. This good performance is consistent for both pumps in the variation of activities and left ventricular failure levels. The results show that the designed controller can be applicable for rotary blood pumps whose pump pressure rise can be measured or derived from pump intrinsic parameters.

Original languageEnglish (US)
Pages (from-to)335-339
Number of pages5
JournalASAIO Journal
Volume55
Issue number4
DOIs
StatePublished - Jul 1 2009

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Speed control
Flow control
Blood
Pumps
Pressure
Hydrodynamics
Vascular Resistance
Computer Simulation
Controllers
Arterial Pressure
Reference Values
Heart Failure
Hemodynamics
Blood Pressure
Sensors
Computer simulation

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Bioengineering
  • Biomaterials
  • Biomedical Engineering

Cite this

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abstract = "An adaptive speed/flow controller was developed based on previous work using the intrinsic pump parameters. Those intrinsic parameters were measured by long-term reliable sensors. The adaptive controller was designed to track the varying total peripheral resistance and update the controller parameters correspondingly. The controller was studied in computer simulation on two different types of pumps, whose hydrodynamic characteristics are described by static and dynamic equation, respectively. The pump pressure rise of both pumps is accessible. With the designed adaptive controller, the abnormal hemodynamic values indicating congestive heart failure, including total blood flow, mean aortic pressure, left ventricular end-diastolic pressure, are all successfully restored to normal ranges. This good performance is consistent for both pumps in the variation of activities and left ventricular failure levels. The results show that the designed controller can be applicable for rotary blood pumps whose pump pressure rise can be measured or derived from pump intrinsic parameters.",
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Adaptive physiological speed/flow control of rotary blood pumps in permanent implantation using intrinsic pump parameters. / Wu, Yi.

In: ASAIO Journal, Vol. 55, No. 4, 01.07.2009, p. 335-339.

Research output: Contribution to journalArticle

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