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A control oriented model design of heart assistant devices [PDF]

IFAC Proceedings Volumes, 2011
Abstract As a treatment option for patients with end-stage heart failure, mechanical circulatory support systems maintain the blood circulation in the human body. For biventricular assistance or for pediatric patients, paracorporeal pulsatile blood pumps are used.
Alexander Sievert, Andreas Arndt, Olaf Simanski, Bernhard P. Lampe, Wolfgang Drewelow   +4 more
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Modeling and Diagnostics of Heart Assist Devices

ASME 2009 Dynamic Systems and Control Conference, Volume 2, 2009
Presented are online adaptive models for ventricular assist devices (VADs). Such devices are used to assist failing hearts or in the case considered here to create a total artificial heart. Adaptive models are developed to estimate cardiac output (CO) and power consumption of the VAD.
Egemen Tuzun, Robert Benkowski, Matthew A. Franchek, Ralph W. Metcalfe, Cedric Benkowski, Steven M. Parnis, William E. Cohn, Hassene Jammoussi, Rafik Borji, Taoufik Wassar, O. Howard Frazier   +10 more
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Heart Assist Devices: State of the Art

Critical Care Nursing Clinics of North America, 1991
The various types of available mechanical assist devices are discussed in this article. Nursing care (both intraoperatively and postoperatively) and complications are also reviewed.
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Implanted Heart Assist Device after Intracardiac Surgery

New England Journal of Medicine, 1974
IN recent years there has been a steady decline in mortality after open intracardiac operations. However, persistent low cardiac output remains one of the prime causes of death, particularly in patients with far advanced myocardial dysfunction at the time of operation.
Robert M. Koffsky, Robert S. Litwak, Russell W. Brancato, Samuel K. Elster, Roy A. Jurado, Fouad A. Lajam, Lukban Sb   +6 more
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Modeling And Control Of An Extracorporeal Heart Assist Device

IFAC Proceedings Volumes, 2014
Abstract Heart assist devices provide mechanical circulatory support for patients with end-stage heart failure. Extracorporeal heart assist devices are applied to adult and pediatric patients in the case of uni- and biventricular assistance. Modern driving units provide more mobility what is an immense benefit to the quality of life of the patients ...
Torsten Jeinsch, Alexander Sievert, Olaf Simanski, Wolfgang Drewelow   +3 more
openaire   +2 more sources

Intelligent control design for heart assist devices

Proceedings of the 1998 IEEE International Symposium on Intelligent Control (ISIC) held jointly with IEEE International Symposium on Computational Intelligence in Robotics and Automation (CIRA) Intelligent Systems and Semiotics (ISAS) (Cat. No.98CH36262), 2002
Heart assist devices are blood pumps used to augment the cardiac output of patients with left ventricular failure. A new generation of devices being evaluated for human use is based on turbo-hydrodynamic methods of pumping, which offer several advantages over the reciprocating, pulsatile methods used in current devices.
Seongjin Choi, James F. Antaki, Marwan A. Simaan, J.R. Boston, Yih-Choung Yu   +4 more
openaire   +2 more sources

Early Clinical Experiences with a Heart Assist Device

1975
A method of left heart (left atrium-aorta) support after open heart surgery is described. Thoracic reentry is not required when support is terminated. The system has been employed in 10 patients, 4 of whom are long-term survivors.
George Silvay, Robert M. Koffsky, Adam Fischer, Robert S. Litwak, Roy A. Jurado, Lukban Sb   +5 more
openaire   +3 more sources

On-line pressure estimation for a left heart assist device

IEEE Transactions on Biomedical Engineering, 1990
Long term measurement of blood pressures is essential for control of circulatory systems with artificial hearts or circulatory assist devices. Efforts to obtain reliable continuous direct measurements of blood pressures, however, have not been successful.
D.R. Gross, T. Kitamura
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Control issues in rotary heart assist devices

Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000
Heart assist devices are mechanical pumps used in patients with cardiovascular diseases who are awaiting heart transplantation. With increasing clinical success, these devices are being used for longer periods of time, and automatic control has become an important requirement.
James F. Antaki, Marwan A. Simaan, J.R. Boston, Yih-Choung Yu   +3 more
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Flow Field of a Novel Implantable Valveless Counterpulsation Heart Assist Device [PDF]

Annals of Biomedical Engineering, 2012
Flow fields are one of the key factors associated with the life threatening formation of thrombi in artificial organs. Therefore, knowledge of flow field is crucial for the design and optimization of a long-term blood pump performance. The blood chamber flow of a novel counterpulsation heart assist device (CPD) has been investigated using laser Doppler
André Berthe, Leonid Goubergrits, S. Gärtlein, Ulrich Kertzscher, Ch. Lederer, Klaus Affeld   +5 more
openaire   +2 more sources