Multiple independent path bubble tonometer

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample

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23928, 261124, 261DIG28, 422 50, 422 99, G01N 3350, G01N 3396, G01N 110

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active

042514835

ABSTRACT:
Multiple, independent path bubble tonometer apparatus for preparing a plurality of predetermined like or different gas/blood samples under identical though dynamic conditions. The tonometer comprises in a controlled environment common locus, multiple tonometer paths each of which is defined by a gas/blood equilibration chamber, means to add a blood sample to the chamber, means to diffuse a gas into the blood sample to an equilibrium condition therein, the gas diffusion means including a porous diffuser body communicating the sample with a pressurized gas supply, and side arm means to selectively withdraw an aliquot portion of the equilibrium condition sample; and an enclosure defining the controlled environment locus identically about each and every tonometer path for instantly cross-referenceable multiple sample preparations.

REFERENCES:
patent: 3127254 (1964-03-01), Astrup et al.
patent: 3973915 (1976-08-01), Raffaele
Noonan et al., Clin. Chem., vol. 20, No. 6, 1974, pp. 660-665.
Adams et al., "Determination of the Blood/Gas Factor of the Oxygen Electrode Using a New Tonometer", British J. of Anaesthesia, C1967, pp. 107-113.

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