Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1982-09-22
1988-01-05
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
604 66, 604 67, 128635, 422 45, 422 46, 422119, G01N 3300, A61M 3100
Patent
active
047175486
ABSTRACT:
A blood gas analyzer system for monitoring real-time blood gas conditions in a patient perfusion circuit during open-heart surgery and other extracorporeal blood flow situations. Sensing electrodes are employed in the blood flow path for sensing pH, pCO.sub.2, pO.sub.2 and temperature, and electrical circuitry is provided for generating and processing the sensed signal and also for computing a signal representing HCO.sub.3.sup.- ; also, these signals are monitored in real time. When situations of metabolic acidosis, metabolic alkalosis, respiratory acidosis or respiratory alkalosis occur, the system activates a corresponding alarm and automatically switches into a compensation mode of effect a change in pump speed, which in turn changes the delivery rate of oxygenated blood to the patient. When the blood gas level returns to normal, the pump speed is likewise automatically returned to a normal value.
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Richman Barry S.
The United States of America as represented by the Secretary of
Wallen T. J.
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