NDLI: Real-time in vitro observation of cavitation on prosthetic heart valves

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Real-time in vitro observation of cavitation on prosthetic heart valves

Content Provider	IEEE Xplore Digital Library
Author	Zapanta, C.M. Liszka Jr., E.G. Stinebring, D.R. Deutsch, S. Geselowitz, D.B. Tarbell, J.M.
Copyright Year	1993
Description	Author affiliation: Pennsylvania State Univ., University Park, PA, USA (Zapanta, C.M.; Liszka, E.G., Jr.; Stinebring, D.R.; Deutsch, S.; Geselowitz, D.B.; Tarbell, J.M.)
Abstract	A method for real-time in vitro observation of cavitation on a prosthetic heart valve has been developed. Cavitation of four blood analog fluids (distilled water, aqueous glycerin, aqueous polyacrylamide, and aqueous xanthan gum) has been documented for a Medtronic/Hall prosthetic heart valve operating in a Penn State Electric Assist Device at physiologic conditions. For each fluid, cavity growth and collapse occurred in less than one millisecond. The cavity duration time was found to decrease with increasing atrial pressure at constant aortic pressure and beat rate. From this study, it was concluded that cavitation may also occur in blood.<>
Starting Page	152
Ending Page	153
File Size	287305
Page Count	2
File Format	PDF
ISBN	0780309251
DOI	10.1109/NEBC.1993.404378
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-03-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	In vitro Prosthetics Heart valves Delay effects Bars Mercury (metals) Biomechanics Artificial biological organs Blood Arteries
Content Type	Text
Resource Type	Article

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