A method and apparatus for determining an initial flow rate in a conduit is disclosed. A known change is made to the flow to be measured, resulting changes (or values corresponding to these changes), or relative changes in the flow to be measured are monitored and the initial flow in the conduit is calculated...http://www.google.es/patents/US6868739?utm_source=gb-gplus-sharePatente US6868739 - Method and apparatus to measure blood flow by an introduced volume change
Method and apparatus to measure blood flow by an introduced volume change
