Title :
In vitro assessment of the flow characteristics of the central-axis prosthetic heart valve
Author :
Mansour, Ahlam A H
Author_Institution :
Coll. of Appl. Med. Sci., King Saud Univ., Riyadh, Saudi Arabia
Abstract :
A new mechanical prosthetic heart valve is presented: the central-axis valve. This device was tested in vitro and compared with four other common prosthetic cardiac valves. All valves studied have the same inner orifice diameter of 22 mm. The prostheses were installed inside a transparent mitral test chamber that permits pressure-drop measurements and other flow characteristics under steady flow conditions using a blood analog fluid. The tested valves were: (a) Starr-Edwards 6120 valve, (b) Bjork-Shiley monostrut valve, (c) Medtronic-Hall valve, (d) Saint Jude Medical valve, and (e) central-axis valve. Initial tests under pulsatile flow conditions demonstrated that the new valve prototype is reliable and functions well
Keywords :
cardiology; haemodynamics; prosthetics; Bjork-Shiley monostrut valve; Medtronic-Hall valve; Saint Jude Medical valve; Starr-Edwards 6120 valve; blood analog fluid; central-axis prosthetic heart valve; flow characteristics; in vitro assessment; inner orifice diameter; mechanical prosthetic heart valve; pressure-drop measurements; pulsatile flow conditions; transparent mitral test chamber; Biological materials; Biomedical materials; Blood; Heart valves; In vitro; Medical tests; Orifices; Pressure measurement; Prosthetics; Testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95662
