| 摘要 |
<p>A flow rate measurement system and method suitable for monitoring filtrate flow in a hemodialysis apparatus, provides a pair of flow meters (12,14) in series at the input of a dialyzer (10) for producing electrical signals indicative of dialysate flow rate and a pair of flow meters (16, 18) in series at the output of the dialyzer (10) for producing electrical signals indicative of dialysate plus filtrate flow rate. A computer (30) receives the flow rate signals and is programmed to calibrate each flow meter during a calibration phase to correct for any variations in each pair to thereby produce corrective scale factors. During an operational phase of the apparatus, the program monitors the flow meters and provides an alarm if any changes between the readings of either of the pairs of flow meters (12,14/16,18) occurs.</p> |
