منابع مشابه
Sensorless Physiological Control of Implantable Rotary Blood Pumps for Heart Failure Patients Using Modern Control Techniques
The most common type of heart disease is left ventricular heart failure (HF). It usually occurs due to excessive load on the left ventricle (LV) as a result of the systemic circulatory insufficiencies and deprivation of oxygen rich blood to the cardiac muscle by narrowed coronary arteries. Sufferers of this disease have a life expectancy of one year and heart transplantation is usually the only...
متن کاملContinuous flow blood pumps: the new gold standard for advanced heart failure?
Consider the familiar phrase ‘cardiac transplantation sets the gold standard for the treatment of severe heart failure’. Does this still ring true? For the advanced heart failure (AdHF) patient, the primary objective is to provide symptomatic relief from intolerable breathlessness, lethargy and fatigue [1]. The secondary aim, conditional upon the primary objective being met, is to extend life. ...
متن کاملNew concepts and new design of permanent maglev rotary artificial heart blood pumps.
According to tradition, permanent maglev cannot achieve stable equilibrium. The authors have developed, to the contrary, two stable permanent maglev impeller blood pumps. The first pump is an axially driven uni-ventricular assist pump, in which the rotor with impeller is radially supported by two passive magnetic bearings, but has one point contact with the stator axially at standstill. As the ...
متن کاملArtificial hearts and blood pumps in the treatment of profound heart failure.
The recent clinical use of a pneumatic artificial heart at the University of Utah has focused attention on the role of blood pumps in the support of the circulation. Pneumatically powered assist pumps are now in clinical trials in patients with profound but reversible heart failure after open-heart surgery; survival rates as high as 50% in a heretofore lethal condition have been encouraging. Th...
متن کاملBlood Flow through Channels and Clearances in Implantable Pumps
Implantable rotary blood pumps are very effective at supporting patients with heart failure. New designs demonstrate distinct advantages over their predecessor diaphragm type pumps and have generated vast interest in the medical devices community, as demonstrated by hundreds of technical publications and newer commercially available devices. In addition to mechanical design criteria, these pump...
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ژورنال
عنوان ژورنال: Offset
سال: 1969
ISSN: 2204-3659,1445-9418
DOI: 10.15209/offset.v0i16.904