Computational fluid dynamics: Solidifying fluid concepts in left ventricular assist device therapy
نویسندگان
چکیده
منابع مشابه
Computational fluid dynamics modeling of impeller designs for the HeartQuest left ventricular assist device.
To finalize the design of the next generation of the HeartQuest left ventricular assist device, a suitable impeller had to be designed and tested. The new prototype was based on calculations and test results of previous designs, but required several changes to decrease the size. For most pump designs, this is a simple matter of altering impeller geometry and rotational speed to achieve the desi...
متن کاملComputational fluid dynamics analysis of a maglev centrifugal left ventricular assist device.
The fluid dynamics of the Thoratec HeartMate III (Thoratec Corp., Pleasanton, CA, U.S.A.) left ventricular assist device are analyzed over a range of physiological operating conditions. The HeartMate III is a centrifugal flow pump with a magnetically suspended rotor. The complete pump was analyzed using computational fluid dynamics (CFD) analysis and experimental particle imaging flow visualiza...
متن کاملFluid dynamics of a pediatric ventricular assist device.
The number of pediatric patients requiring some form of mechanical circulatory assistance is growing throughout the world because of new surgical procedures and the success of pediatric cardiac transplantation. However, the salvage rate for those patients requiring circulatory support may be as low as 25%. Despite the fact that Penn State's 70 cc pneumatic ventricular assist device has been use...
متن کاملDesign and transient computational fluid dynamics study of a continuous axial flow ventricular assist device.
A ventricular assist device (VAD), which is a miniaturized axial flow pump from the point of view of mechanism, has been designed and studied in this report. It consists of an inducer, an impeller, and a diffuser. The main design objective of this VAD is to produce an axial pump with a streamlined, idealized, and nonobstructing blood flow path. The magnetic bearings are adapted so that the impe...
متن کاملComputational fluid dynamics analysis of surgical adjustment of left ventricular assist device implantation to minimise stroke risk.
BACKGROUND Currently, mechanical support is the most promising alternative to cardiac transplantation. Ventricular assist devices (VADs) were originally used to provide mechanical circulatory support in patients awaiting planned heart transplantation ('bridge-to-transplantation' therapy). The success of short-term bridge devices led to clinical trials evaluating the clinical suitability of long...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2015
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2015.06.007