Measuring and testing – Volume or rate of flow – Of selected fluid mixture component
Reexamination Certificate
2008-11-13
2011-11-22
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
Of selected fluid mixture component
C604S317000, C073S861080, C702S045000
Reexamination Certificate
active
08061216
ABSTRACT:
In an aspiration flow measurement system, a flow channel is provided for receiving an aspiration fluid flow therethrough. The flow measurement system further includes an aspiration flow measurement chamber and a flow sensor that is configured to generate a raw signal indicative of the rate of fluid flow through the flow channel. A control system is configured to monitor the signals indicating the flow through the flow measurement chamber, and to determine when a value of the raw signal is indicative of a disruption caused by the presence of an air bubble, wherein the control system generates a filtered signal of the flow rate that is exclusive of any signal values that are indicative of a disruption.
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International Search Report (PCTISA/210) and Written Opinion (PCT/ISA/237) mailed on May 15, 2009.
Bausch & Lomb Incorporated
Patel Harshad
Powers Jeffrey B.
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