Surgery – Truss – Pad
Patent
1988-12-23
1990-08-21
Cohen, Lee S.
Surgery
Truss
Pad
A61B 5028
Patent
active
049497243
ABSTRACT:
A method of continuously monitoring cardiac output of a patient includes the step of determining a value of a cardiac output constant which is assumed to remain stable over the period of interest and is determined as a function of values of various measured parameters of the patient. These values may include thermodilution cardiac output, carbon dioxide production, arterial and mixed venous oxygen saturation and hemoglobin. Thereafter, cardiac output is continuously determined employing the calculated cardiac output constant and monitored values of carbon dioxide production and arterial and mixed venous oxygen saturation. Oxygen transport may also be monitored on a continuous basis.
REFERENCES:
patent: 4201222 (1980-05-01), Haase
Datascope Technical Reference 10/27/83.
"Continuous Fick Cardiac Output Compared to Continuous Pulmonary Artery Electromagnetic Flow Measurement in Pigs", Anesthesiology, 66:805-809, 1987, Gerald Davies.
Blanch L. et al., Accuracy of an Indirect Carbon Dioxide Fick Method in Determination of the Cardiac Output in Critically Ill Mechanically Ventilated Patients. Intens Care Med 14, 131, 1988.
Ultman, J. C. et al., Analysis of Error in the Determination of Respiratory Gas Exchange at Varying F.sub.I O.sub.2. J Appl Physiol 50, 210, 1981.
Van Lanschot, J. Jan B. et al. Accuracy of Intermittent Metabolic Gas Exchange Recordings Extrapolated for Diurnal Variation, Crit. Care Med, vol. 16, No. 8, Aug. 1988, pp. 737-741.
Capek, John M. et al., Noninvasive Measurement of Cardiac Output Using Partial CO.sub.2 Rebreathing, IEEE Transactions on Biomedical Eng., vol. 35, No. 9, Sep. 1988, pp. 653-661.
Davies, G. G. et al., Continuous Fick Cardiac Output Compared to Dilution Cardiac Output., Crit. Care Med 14, 881, 1986.
Ehlers, K. C. et al., Cardiac Output Measurements. A Review of Current Techniques and Research. Ann Biomed Eng 14, 219, 1986.
Hankeln K. et al., Continuous, On-Line, Real-Time Measurement of Cardiac Output and Derived Cardiorespiratory Variables in the Critically Ill. Crit. Care Med 13, 1071, 1985.
Tachimori Y. et al., On-Line Monitoring System for Continuous and Real-Time Cardiac Output. Crit. Care Med (Abstract) 14, 401, 1986.
Davis, C. C. et al., Measurements of Cardiac Output in Seriously Ill Patients Using a CO.sub.2 Rebreathing Method. Chest 73, 167, 1978.
Halter Pieter
Mahutte Cornelis K.
Cohen Lee S.
Getzow S.
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