MONITORING SYSTEM FOR CARDIAC SURGICAL OPERATIONS WITH CARDIOPULMONARY BYPASS
First Claim
1. A monitoring system for cardiac operations with cardiopulmonary bypass comprising:
- a processor operatively connected to a heart-lung machine;
a CO2 detecting device placed at the oxygenator of the heart-lung machine to continuously detect the exhaled CO2 (eCO2) value and send it to the processor;
a data input device allowing the operator to manually input data regarding the gas flow (Ve) of the heart-lung machine;
computing means able to calculate the CO2 production (VCO2i) from the preset gas flow (Ve) and the exhaled CO2 (eCO2) detected; and
a display connected to the processor to display in real-time the above CO2 production (VCO2i) as calculated.
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Abstract
A monitoring system for cardiac operations with cardiopulmonary bypass comprising: a processor operatively connected to a heart-lung machine; a pump flow detecting device connected to a pump of the heart-lung machine to continuously measure the pump flow value and send it to the processor; a hematocrit reading device inserted inside the arterial or venous line of the heart-lung machine to continuously measure the blood hematocrit value and to send it to the processor; a data input device to allow the operator to manually input data regarding the arterial oxygen saturation and the arterial oxygen tension; computing means integrated in the processor to compute the oxygen delivery value on the basis of the measured pump flow, the measured hematocrit value, the preset value of arterial oxygen saturation, and the preset value of arterial oxygen tension; and a display connected to the processor to display in real-time the computed oxygen delivery value.
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Citations
4 Claims
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1. A monitoring system for cardiac operations with cardiopulmonary bypass comprising:
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a processor operatively connected to a heart-lung machine; a CO2 detecting device placed at the oxygenator of the heart-lung machine to continuously detect the exhaled CO2 (eCO2) value and send it to the processor; a data input device allowing the operator to manually input data regarding the gas flow (Ve) of the heart-lung machine; computing means able to calculate the CO2 production (VCO2i) from the preset gas flow (Ve) and the exhaled CO2 (eCO2) detected; and a display connected to the processor to display in real-time the above CO2 production (VCO2i) as calculated. - View Dependent Claims (2)
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3. A monitoring system for cardiac operations with cardiopulmonary bypass comprising:
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a processor; a CO2 detecting device at an oxygenator of a heart-lung machine to detect an exhaled CO2 (eCO2) value and send it to the processor; a gas flow (Ve) input means to obtain a preset gas flow (Ve); functionality able to calculate the CO2 production (VCO2i) from the preset gas flow (Ve) and the exhaled CO2 (eCO2) detected; and a display connected to the processor to display in real-time the above CO2 production (VCO2i) as calculated. - View Dependent Claims (4)
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Specification