CPC A61M 1/1605 (2014.02) [A61M 1/14 (2013.01); A61M 1/165 (2014.02); A61M 1/1613 (2014.02); A61M 1/1615 (2014.02); A61M 1/1647 (2014.02); A61M 1/341 (2014.02); A61M 1/3403 (2014.02); A61M 1/3434 (2014.02); A61M 1/3437 (2014.02); A61M 1/3441 (2013.01); A61M 1/3444 (2014.02); A61M 1/3448 (2014.02); A61M 1/3609 (2014.02); A61M 1/3635 (2014.02); A61M 1/34 (2013.01); A61M 1/3607 (2014.02); A61M 2205/05 (2013.01); A61M 2205/058 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3341 (2013.01); A61M 2205/3351 (2013.01); A61M 2205/3355 (2013.01); A61M 2205/3365 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/502 (2013.01); A61M 2205/702 (2013.01)] | 18 Claims |
1. A method of maintaining a predefined ratio of flow rates in first and second channels, comprising:
providing a first pump configured to force a fluid through the first channel and a second pump, downstream from the first pump, configured to force the fluid through the second channel;
connecting the first channel and the second channel temporarily to create a continuous flow between the first channel and the second channel;
while the continuous flow is established between the first channel and the second channel, operating the first pump at a first rotation frequency and the second pump at a second rotation frequency, wherein the first rotation frequency and the second rotation frequency are different from each other but a volumetric flow rate through the first pump and the volumetric flow rate through the second pump are substantially equal to each other;
measuring a static pressure of a channel carrying the continuous flow temporarily generated in the connecting; and
adjusting calibration data of at least one of the first pump and the second pump responsively to a result of the measuring.
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