Patent ID: 6530262
Filing Date: 2003-03-11
Classification: A61M,G01M

Abstract:
A method for proving a sensor for flowing fluid in a system including a dialysis monitor, a fluid input, and a fluid output, said method comprising applying a first pressure to said flowing fluid and detecting a first flow of said flowing fluid at said fluid input and said fluid output, applying a second pressure to said flowing fluid and detecting a second flow of said flowing fluid at said fluid input and said fluid output, determining a first difference between said first flow of said flowing fluid at said fluid input and said second flow of said flowing fluid at said fluid input, determining a second difference between said first flow of said flowing fluid at said fluid output and said second flow of said flowing fluid at said fluid output, determining a third difference between said first difference and said second difference, determining a fourth difference between said first flow of said flowing fluid at said fluid input and said first flow of said flowing fluid at said fluid output, determining a fifth difference between said second flow of said flowing fluid at said fluid input and said second flow of said flowing fluid at said fluid output, and determining whether any detected differences between said first and second flows are the result of leakage in said system or caused by said sensor.