Use and application of the cuvette densitometer as an oximeter.
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چکیده
منابع مشابه
Amplifier for linear recording of oxygen saturation and dye dilution curves.
An amplifier system has been designed for use with commercially available oximeter earpiece or cuvette and a direct recording oscillograph. Linear response to changes in oxygen saturation and in vivo dye concentrations are obtained with a rise time less than 0.5 sec., noise level and drift less than 2.5 per cent and accuracy comparable to Van Slyke-Neill method. Standard error of estimate betwe...
متن کاملEvaluation of a new cuvette densitometer for determination of cardiac output.
Quantitation of cardiac output by the Stewart-Hamilton method will have extended usefulness if the accuracy of measuring the concentration of Evans blue dye in whole blood is established. Cardiac outputs by this method have been compared in dogs with outputs by the rotameter and the Tick method. The constant-flow photometer (Friedlich) was used initially, but certain difficulties in its use led...
متن کاملMeasurement of Cardiac Output Using the Photoelectric Earpiece: a Comparison with Simultaneous Fick Measurements.
• Since the early studies by Hamilton, Werko, and Doyle, and their colleagues, a variety of indicator dilution techniques have been developed for measuring the cardiac output in man. The most widely accepted have been those requiring the use of the continuously recording cuvette densitometer." Numerous studies have appeared to demonstrate close correlation of values by the Hamilton and by the s...
متن کاملA whole blood oximeter.
During cardiac catheterization it is an advantage to have an immediate indication of the oxygen content of blood samples withdrawn from the heart and great vessels while the catheter is still in situ. This is especially important in the more complex congenital defects as the procedure can then be modified if necessary in the light of the blood oxygen estimations. The present paper describes a w...
متن کاملA photobioreactor system for precision cultivation of photoautotrophic microorganisms and for high-content analysis of suspension dynamics.
Small-scale photobioreactors for cultivation of photoautotrophic microbes are required for precise characterization of the growth parameters of wild-type and engineered strains of these organisms, for their screening, and for optimization of culture conditions. Here, we describe the design and use of a flat-cuvette photobioreactor that allows accurate control of culture irradiance, temperature,...
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عنوان ژورنال:
- Circulation research
دوره 5 2 شماره
صفحات -
تاریخ انتشار 1957