Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1995-03-15
1997-07-15
Millin, Vincent
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820423, A61M 1600
Patent
active
056473508
ABSTRACT:
The flow of a biological fluid to an organ is computer-controlled so that the natural variation of such flow is simulated. Specifically described are control of a blood pump flow output during CPB to mimic normal pulsatile blood flow from the heart and control of a ventilator output to mimic normal breathing of healthy lungs. A pattern of variation over time of instantaneous flow of a biological fluid to an organ of a mammalian species is established, a variable control parameter for regulation of flow of the biological fluid to the organ is generated in accordance with the pattern, and the flow of biological fluid to the organ is controlled in accordance with the variable control parameter.
REFERENCES:
patent: 4001700 (1977-01-01), Cook et al.
patent: 4584996 (1986-04-01), Blum
Maeda, K. et al., Asaio Transactions, "Predictive Control By Physical Activity Rate Of A Total Artificial Heart During Exercise", vol. 34, No. 3, Jul. 1988, 480-484, XP 000053170.
Lefevre Gerald Robin
Mutch William Alan C.
Millin Vincent
Raciti Eric P.
University of Manitoba
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